Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 1 of 11 PageID# 205
`Case 3:14-cv-OO757-REP-DJN Document 1-10 Filed 11/04/14 Page 1 of 11 Page|D# 205
`
`EXHIBIT H
`EXHIBIT H
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 2 of 11 PageID# 206
`
`United States Patent
`Welch et aL
`
`u9]
`
`[54]
`
`INTEGRATE FLEXIBLE CONTACTS
`GROUNDING SYSTEM FOR A COMPUTER
`SYSTEM CHASSIS
`
`[75]
`
`Inventors: Randall S. Welch. Lake Forest; Bao
`Gia Le. Orange, both of Calif.
`
`[73] Assignee: AST Research, Inc. Irvine. Calif.
`
`[21] Appl. No.: 866,397
`[22] Filed:
`May 30,1997
`
`Related U.S. Application Data
`
`[63] Continuation of Ser. No. 445,430, May 19, 1995, aban
`doned.
`
`[51]
`[52]
`
`[58]
`
`hit CL6
`U.S. CI
`
`HOSK 7/14
`361/800; 364/818; 364/224;
`364/816; 364/752; 174/35 R; 174/35 GC;
`435/88; 435/109; 435/609; 435/608
`361/728.736.
`Field of Search
`361/738.752.753.757. 800. 816. 818.
`820. 821.212. 220. 744.784. 790; 174/35 R.
`35 GC. 50.52.1. 51; 439/88.108. 109.
`607-610; 257/678. 659. 660; 307/89. 90;
`220/402; 2067275
`
`[56]
`
`References Cited
`
`U.S. PATENT DOCUMENTS
`
`US005777854A
`
`[ill
`
`Patent Number:
`
`[45] Date of Patent:
`
`5,777,854
`Jul. 7, 1998
`
`3/1982 Snyder
`4,322,572
`5/1991 McCoy, Jr.
`5,014,160
`1/1994 Henick
`5,278,351
`5,354,951 10/1994 Lange.Sr.etal.
`
`174/35 R
`. 361/818
`
`174/35 R
`174/35 R
`
`PrimaryExaminer—Leo P. Picard
`Assistant Examiner—Anthony Dinkins
`Attorney Agent, or Firm—Knobbe. Martens.Olson & Bear.
`L.L.P.
`
`[57]
`
`ABSTRACT
`
`A computer system chassis, including a base and a cover,
`implements an improved grounding system by integrally
`forming a plurality of flexible protruding contacts into
`predetermined contact regions throughout the base during
`the metal punching manufacturing phase of the chassis base
`blank. In this way. when the base and cover are attached to
`each other, the size of any gaps which may form in these
`contact regions, as a result of warpage or design tolerances,
`are reduced. This is due to the number of mechanical
`contacts being made by the plurality of flexible contacts
`which protrude and extend across these gaps and connectthe
`base to the cover. In addition to reducing the size of these
`gaps, the flexible contacts provide an improved electrical
`grounding to the cover by increasing metal-to-metal contact
`between the cover and the base, bom of which reduce EMI
`emissions from the computer system chassis.
`
`4,115,655
`
`9/1978 Prentice
`
`174/35 R
`
`19 Claims, 3 Drawing Sheets
`
`Or-
`
`JSb
`
`JSb
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 3 of 11 PageID# 207
`
`UJS. Patent
`
`Jul. 7,1998
`
`Sheet 1 of 3
`
`5,777,854
`
`^
`
`FIG, I
`
`35b
`
`36b
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 4 of 11 PageID# 208
`
`U.S. Patent
`
`jui. 7,1998
`
`sheet 2of 3
`
`5,777,854
`
`FIG. 2
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 5 of 11 PageID# 209
`
`U.S. Patent
`
`Jul. 7, 1998
`
`Sheet 3 of 3
`
`5,777,854
`
`FIG. 4
`
`FIG. 6
`
`FIG. 7a
`
`^
`
`y
`
`^ ^a
`29
`
`FIG. 7b
`
`32>
`
`-30
`
`26
`
`30
`
`22
`
`29-*
`
`22~^
`
`^29
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 6 of 11 PageID# 210
`
`5.777.854
`
`1
`2
`INTEGRATE FLEXIBLE CONTACTS
`installing such contacts by hand onto the chassis base
`increases costs byrequiring additional add-on parts, and is
`GROUNDING SYSTEM FOR A COMPUTER
`b°th time consuming and labor intensive to install.
`SYSTEM CHASSIS
`Therefore, a better solution is needed to increase metal-
`This application is a continuation ofU.S. patent appU- 5 to-metal contact between the base and cover, and to reduce
`cation Ser No. 08/445.430. filed May 19. 1995 now aban-
`the size of gaps occurring between the base and cover.
`.
`thereby providinga better electrical groundingbetween the
`.
`0
`base and cover, which reduces EMI emissions from the
`computersystemchassis without increasingthe cost of parts
`(cid:127) m and labor.
`This invention relates to a grounding system for a chassis
`1U
`used for housing electronic devices, and more specifically to
`a grounding system for a computersystemchassis compris-
`ingintegratedflexible contacts forreducing Electromagnetic
`Interference (EMI) emissions from the computer system
`chassis.
`
`FIELD OF THE INVENTION
`
`SUMMARY OF THE INVENTION
`The computer system chassis grounding system of the
`present invention comprises integrated flexible contacts for
`reducingEMIemissions from a computersystemchassisby
`l providing an improved electrical grounding system that
`increases contact between, and reduces the size of gaps
`^ ™„„„„, „„mmftv,
`^
`„
`^ ^ mc ^
`^ covcr without incrcasmg me ^ of
`BACKGROUND OF THE INVENTION
`parts and labor,
`Manufacturers of electronic devices must conform to
`The grounding system of the present invention comprises
`certain Federal Communications Commission's (FCC) rules
`a plurality of integrated flexible contacts which, in a pre-
`and regulations regarding the acceptable amount of EMI
`ferred embodiment, are integrally formed throughout por-
`emissions from electronic devices. The FCC imposes limits
`tions of the base that are referred to as contact regions. The
`on the amounts of EMI emissions allowed to be released
`flexible contacts are formed by punching out portions of a
`from devices being sold and transported in and around the
`chassis base blank during the manufacturing process to form
`United States.
`flexible contacts comprising a protrusion arm having a
`With the implementation of each new generation of
`dimple. Inthis way. the sizeofanypotential gaps which may
`computer processor and specialized internal circuitry, the
`formbetween the base and coverdue to design tolerances
`amount ofEMIemissions generated bythese newelectronic
`are minimized by the placement of theseflexible contacts,
`devices have continued to increase. Therefore, computer
`manufacturers are constantly trying to improve the ground- __ which provideadditionalpoints of contact between the base
`ing on the computer system chassis used to house these
`and the cover. The dimple provides the actual contactpoint
`devices in order to minimize the EMI emissions from the
`on the protrusion arm between the computer system chassis
`computer system chassis. Improving the grounding of the
`base and cover. If design tolerances are very small, the
`chassis also provides additional protection against electro-
`protrusion arm can be kept flush with the base plane,since
`static discharge, which can damage computer system dr- „ the dimple will provide enough of a protrusion to extend
`cuitry if contact with a poorly grounded chassis results in
`acrossa slim gap formed in a chassishaving a small design
`electrostatic discharge.
`tolerance.
`In a typical computer system, the computer system chas-
`It is to be understood that the flexible contacts may be
`sis comprises a base and a mating cover. The cover is
`formed invarious ways, otherthanbypunching outportions
`removable from the base, thereby allowing an end userto w ofthebase blank. Forexample, if theshape ofthebaseblank
`maintain and upgrade the computersystem and its associ-
`is formed by a mold, then the mold can be designed to
`ated internalcircuitry. However, if the coveris not properly
`producethe flexible contactswithout the need for punching
`mated to the base once the cover is attached to the base, then
`out portions of the base blank after the molding process,
`gaps will form between the cover and the base around a
`One of the benefits of the present invention is that the
`perimeter of contact region between the cover and the base. 45 computer system chassis grounding system of the present
`As is known in the art, the existence of these gaps allows for
`invention does not require any add-on contacts. Thus, cost
`increased EMI emissions from the computer system chassis.
`savings are realized by reducing the parts count and by
`Basically, with a loose-fitting cover, the cover is driven by
`reducing labor costs required for manual installation,
`the EMI emissions and acts like an antenna. By providing
`Accordingly, it is an object of the present invention to
`greatercontact fromthe coverto the basewhichis properly 50 providean improved groundingsystemfor a chassis usedfor
`grounded, the antenna effect of the cover is reduced.
`housingelectronic devices.
`Previously, such gaps, or improper fittings, did not cause
`lit is a further object ofthe present invention to provide an
`problems since the amount of EMI emissions being gener-
`improved grounding system for a computer system chassis,
`ated was not significant However, with today's advanced
`An additional object ofthepresent invention istoprovide
`circuitry, this is nolonger true. Therefore, in order toreduce 55 an improved computer system chassis grounding system
`EMIemissions, computer manufacturers have attempted to
`comprising integrated flexible contacts,
`increase the metal-to-metal contact between the base and the
`Another object of the present invention is to provide a
`cover and toreduce the size ofthe gaps that occur between
`chassis grounding system that increases metal-to-metal con-
`tact between the base and the cover, thereby reducing EMI
`the base and the cover along die perimeter ofcontact region.
`thereby providing a better electrical grounding between the eo emissions from the computer system chassis,
`cover and the base.
`Further objects and advantages ofthe present invention
`Aprior artsolution to EMI emissions has been toattach
`v^n become apparent from a consideration ofthe drawings
`one or more add-on contacts to the perimeter of contact
`^j ensuing description.
`region around the base in one or more localized areas in
`order to increase metal-to-metal contact between the base 65
`and the cover and to reduce the size of the gaps that form
`between the base and the cover. However, individually
`
`BREF DESCRIPTION OFTHE DRAWINGS
`FIG. 1 is an exploded perspective view of a computer
`system chassis comprising a base and a mating cover.
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 7 of 11 PageID# 211
`
`5,777,854
`
`4
`3
`the computer system chassis 19 base 12. On the cover 14.
`FIG. 2 is an enlarged perspective view of a portion ofFIG.
`these regions typically run along the left, right, and upper
`1 showing the details of a plurality of flexible contacts.
`perimeter of the front and rear edges of the cover 14. as
`FIG. 3 is a partial front view of a front face of the base.
`indicated by the labels 26 and 28. which define the front
`FIG. 4 is a partial rear view ofarear face ofthe base.
`p,^^ of^^ rcgion ^
`5 cover perimeter of contact region 26 and the rear cover
`__ - ._ . . .
`*«.
`,
`f -
`.
`FIG. 5is apartial top view of the rear face of the base.
`ft {$ ^ ^ mme rior ^ ^ ^^
`q{
`FIG 6 is a partial top phantom view of a front cover
`^ ^ ^ S9ttmlfdmtaa 10 to the base 12 may result in
`perimeter of contact region and afront base perimeter of
`some gaps f<xn^n^ between the front base perimeter of
`con
`region.
`FIG. la isa side cutaway view of FIG. 6 shown prior to 10 contact region 22 and the front cover perimeter of contact
`attaching the cover to the base.
`region 26. as well as between the rear base perimeter of
`FIG. lb is a side cutaway view of FIG. 6 shown after the
`contact region 24 and the rear cover perimeter of contact
`cover is attached to the base. This figure illustrates the
`region 28. These gaps, contribute to leakage from the
`benefits of having flexible contacts, which increase the
`computer systemchassis 10 of EMIemissions generated by
`likelihood of contact between the cover and the base in 1S a computer's processor and internal circuitry (not shown),
`contact regions where gaps may form.
`EMI emissions also occur asaresult of improper grounding
`of the cover 14 resulting from poor contact between the
`COVer 14 and the base 12. A prior art solution has been to
`DETAILED DESCRIPTION OF A PREFERRED
`attach oneormorecontacts in these localized areas where
`EMBODIMENT
`FIG. 1is an exploded perspective view ofacomputer M6aDS are for™ed
`system chassis 10 comprising a base 12 anda mating cover
`Forexample,if a certainregionof one of the perimeterof
`contactregion areas is slightly warped, then the contact in
`14.Most computer systems usually include a front bezel 16
`as welL In a preferred embodiment, the base 12 comprises
`that region between the base 12 and the cover 14 will not sit
`form (as shown in FIG. 7b). By
`a front face 18 and a rear face 20. The front
`face 18
`flush, and gaps will
`comprises a front base perimeter of contact region 22. This
`manually placing an add-on contact into this localized
`region 22 comprises a plurality of flexible contacts 29. and,
`region, the size of the gap can be reduced, therebyreducing
`as seen in FIGS. 2 and 3. each contact 29 comprises a
`the leakage of EMI emissionsresulting from that gap.
`protrusion arm 30 having a dimple 32. The rear face 20
`The computer system chassis 10of the present invention
`comprises a rear base perimeter of contact region 24.This
`comprises a plurality of flexible contacts 29 which are
`region 24 comprises aplurality of flexible contacts 29. and.
`comprised of protrusion arms 30 having dimples 32. The
`as seen in FIG. 4 and 5. each contact 29 comprises a
`flexible contacts 29 are manufactured integrally into the
`protrusion arm 30having adimple 32. The base 12 also has
`chassis 10 sothat add-on contact parts (not shown) do not
`a left side edge 34a and a right side edge 34*. which
`have to be used, and so that manual labor to install these
`typically comprises arail (not shown) for mating with and 35 add-on protrusion parts is not required. By manufacturing
`guiding acorresponding rafl (not shown) on the cover 14.
`the chassis 10 with aplurality offlexible contacts 29 integral
`Althougha stand-uptowertype chassismay differslightly
`to the chassis 10. potential gaps formed by contactregions
`in configuration, it is to be understood that a person of
`that do not sit flush arereduced in size, thereby reducing
`ordinary skill in the art will be able to apply the concepts
`leakage of EMI emissions generated by the computer's
`disclosed herein to such variations in configuration. For ^ processor and internal circuitry (not shown). In a preferred
`example, in a tower type chassis, a base may comprise a
`embodiment, the flexible contacts 29 are formed integral to
`major portion of the chassis, with a cover merely being a
`the base 12. although the contacts 29 could just as easily
`removable side.
`top. or rear panel. If contact regions
`have been formed on the cover 14 or both the base 12 and
`between the base and removable panel are susceptible to
`the cover 14.
`forming gaps, men the teachings ofthe present invention are 45
`FIG. 2isan enlarged view showing more detail ofa few
`desirable in, and easily adaptable to. such aconfiguration.
`of the flexible contacts 29. In FIG. 2.a portion of the front
`Thecover 14comprises afront cover perimeter of contact
`base perimeter of contact region 22is shown. Thisregion 22
`region 26 and a rear cover perimeter of contactregion 28
`comprises integrally formed flexible contacts 29 which
`(which extends inward from the top and sides of the cover
`comprise protrusion arms 30 having dimples 32. The
`toward the center of therear, in order to provide a region for 50 dimples 32 actasthe contact point between the base12and
`contacting with the rear base perimeter ofcontactregion 24.
`the cover 14. The flexible contacts 29are formed during the
`butisnotshown in FIG. 1).as well as aleftside 35ahaving
`manufacturing process by taking a base blank (not shown)
`aleftside edge 36aand aright side 35bhaving aright side
`and punching outportions ofthebase blank soasto form the
`edge 36*. The cover 14also typically comprises side rails
`protrusion arms 30. The dimples 32 are added to the
`(not shown) along theleft and right side edges 36aand36b 55 protrusion arms 30 during this process as well. It is to be
`for mating with and being guided onto the base 12.
`understood that the flexible contacts 29 can beformed using
`The various "perimeter of contact regions" (e.g. regions
`a moldingprocess as well.
`22. 24. 26. and 28 as arc shown in FIG. 1) are defined as
`Each flexible contact 29is then slightly offset and raised
`regions between the base 12 and cover 14 which are
`from meplane ofmesurface from which itwas punched out
`designed to contact each other to form a flush contact 60 The flexible contact 30 protrudes from thesurface level of
`between the base 12 and cover 14. but do not always do so.
`the front base perimeter of contact region 22, and in a
`These regions sometimes form gaps dueto warped bases 12
`preferred embodiment, the contacts 29remain flexible after
`or covers 14 or other various factors relating to design
`this process. By remaining flexible, the contacts 29 ensure
`tolerances. On the base 12.these regions are the localized
`that most, if notall. of thecontacts 29wfllmake contact with
`regions to which prior art add-on contacts were typically 65 the cover 14. If stiff contacts 29 are used, an individual
`attached. These regions typically run along the left, right,
`contact 29 that protrudes the furthest would stop the cover
`and upper perimeter ofthe front and rear faces 18 and 20 of
`14 from coming closer tothe base 12. thereby preventing
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 8 of 11 PageID# 212
`
`5.777.854
`
`6
`S
`For example, the flexible contacts 29 can be formed on the
`contacts 29 which protrude less from making contact. In
`sides ofthe cover 14 and base 12. or on the front and rear
`other words, flexibility isimportant in case certain contacts
`ofthe cover 14. or on both the base 12 and the cover 14. In
`29 protrude more than others. By flexing, all contacts 29 are
`addition, flexible contacts 29 can be integrally formed into
`capable of making contact with a corresponding contact
`5 acomputer system chassis for stand-up tower type configu-
`point on the cover 14.
`rations as well, by integrally forming flexible contacts 29
`FIG 3 is a front view of a portion of the front base
`along the perimeter ofcontactregions between the base and
`perimeter of contact region 22. This view better illustrates
`cover of the tower chassis,
`the raised offset of the flexible contacts 29above the plane
`.aL .
`.
`,
`.
`W^is claimed is:
`ofthe sheet metal from which it was punched out.
`1. Achassis for housmg electromc devises, saidhousing
`nG.4isarearviewofaportionoftherearbaseperimeter »
`comprising,
`of contact region 24. which illustrates the plurality of
`a base formed from a base material.
`flexible contacts 29 formed onto the rear face 20.
`a cover formed from acover material,
`FIG. 5isatop view looking down on aportion ofthe rear
`said cover configuredto attach to said base, with certain
`face 20. which illustrates the raised offset of the flexible
`cover regions contacting certain base regions, and
`contacts 29 above the plane of the sheet metal from which
`wherein saidcontactbetween said baseand saidcover
`it was punched out
`is lessthan continuous, and
`When referring to anoffset "above" the plane, thedirec-
`a plurality of flexible contacts integrally formed from the
`tionof "above" is meant to describe a direction toward the
`corresponding mating component. In a preferred ^
`material of at least one of said base regions and said
`coverregions and shaped to contact the other of said
`embodiment, the flexible contacts 29 may be raised out of
`base regions and saidcoverregions, said flexible con-
`the base 12 toward the cover 14. If the contacts 29 were
`tacts improving electrical contact between said base
`punched out of the cover 14 instead, thenthe raised offset
`regions and said coverregions and reducing the sizeof
`would be in the direction of the base 12. In such an
`any gaps that form between thecover regions and base
`alternative configuration, theterm "above" would be in the ^
`regions, and said flexible contacts having sufficient
`opposite direction from that described for the preferred
`flexibility to enable more than one contact to contact
`embodiment
`said other region,
`if the manufacturing tolerances are small
`However,
`2. The chassisof claim 1. wherein said improved contact
`enough, then the contacts 29 may be formed in a plane
`parallel to the plane of the sheet metal from which is was ^ between said base regions and said cover regions is an
`punched out since the raised dimples 32 will protrude a
`electrical contact forimproving electrical grounding of said
`sufficient amount to extend across any slim gaps that may
`cover,
`form in a chassis with small design tolerances.
`3. The chassis of claim 1. wherein said improved contact
`FIG. 6 is a partial phantom view of the front base
`between said base regions and said cover regions is a
`perimeter of contact region 22 shown in contact with the 35 mechanical contact for reducing the sizeof potential gaps,
`front cover perimeter of contact region 26. The phantom
`4. The chassis of claim 1. wherein said flexible contacts
`view shows the flexible contacts 29 of the base 12 making
`areintegrally formedinto said base during manufacturingof
`contact with the front cover perimeter of contact region 26.
`a base blank.
`FIGS, la and FIG. 7b show a side cutaway view of the
`5.The chassis of claim 1.wherein said electronic devices
`front cover perimeter of contact region 26 coming into 40 comprise a computer system.
`contact withthe front base perimeter of contact region's 22
`6\ The chassis of claim 1. wherein said chassis is a
`flexible contacts 29. Gaps typically are created when the
`computer system chassis used for housing a computer sys-
`cover 14 and base 12 do not sit flush, such as when one or
`tern comprising a microprocessor.
`7-The chassis of claim 1. wherein said flexible contacts
`the other is warped. Without the placement of flexible
`contacts 29 throughout the contact regions, large gaps may 45 comprise a section of a base blank around which a portion
`form where the contact regions donotsitflush. Byintegrally
`of the base blank is punched out
`forming flexible contacts 29 intothebase 12contact region
`8. The chassis of claim 7, wherein said flexible contacts
`22. even if the base 12 and cover 14 do not sit flush in these
`are parallelto said portions of said base blank from which
`contact regions, the flexible contacts 29 extend across the
`said flexible contacts are formed.
`gaps to form a contact with thecover 14.thereby reducing 50
`9.The chassis of claim 7, wherein said flexible contacts
`the sizeof thegap. whichinturnreduces theleakage of EMI
`protrude from the plane of said baseblankfromwhich said
`emissions through the gap.It is alsounderstood by peopleof
`flexible contacts are formed.
`ordinary skillin the artthatEMI emissions are reduced by
`10.The chassis of claim1. wherein said flexible contacts
`improving the grounding of the cover 14 to the base 12.
`comprise molded portions of a base blank,
`which is properly grounded via a power cord. Proper 55
`11. The chassis of claim 10.wherein said flexible contacts
`grounding is achieved by increasing metal-to-metal contact
`comprise portions of said base blank formed in a plane
`between the cover 14 and the base 12. and the contacts 29
`parallel to the plane of the base blank,
`of the present invention provide this function. By utilizing
`12.The chassis of claim 10. whereinsaid flexiblecontacts
`contacts 29 thatare flexible, the probability of each flexible
`protrude from the plane of saidbaseblank fromwhich said
`contact 29makingcontact withthecover14across a formed 60 flexible contacts are formed.
`'gap is increased, since higher protruding contacts 29 will
`13.The chassis of daim 1. wherein each of said plurality
`flex downward and will not prevent lowerprotruding con-
`of flexible contacts comprises
`tacts 29 from making contact
`a protrusion arm formed by punching out portions of a
`While the above description contains many specificities.
`base blank,
`these should not be construed as limitations on the scope of 65
`14. The chassis of claim 1, wherein said flexible contact
`the invention, but rather as an exemplification of preferred
`has an outwardly arcing dimple extending outward in the
`embodiments thereof. Many other variations are possible.
`same direction as the flexible contact
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 9 of 11 PageID# 213
`
`5.777,854
`
`15. A chassis for housing electronic device, said chassis
`comprising:
`a base formed from an electrically conductive material.
`a cover formed from an electrically conductive material.
`said base having predetermined base regions of intended
`contact with said cover when said base and said cover
`are mutually attached.
`said cover having predetermined cover regions of
`intendedcontactwith saidbasewhensaidbase andsaid xq
`cover are mutually attached, and
`a plurality of flexible contacts integrally formed from said
`electrically conductive material of at least one of said
`base regions and said cover regions and shaped to
`contact the other of said base regions and said cover is
`regions,said flexiblecontactsreducing the size of gaps
`which form between said base regions and said cover
`regions wherein said flexible contacts extend across
`said gaps, said contact thereby increasing contact
`between said base and said cover andreducing the size 20
`of said gaps, said flexible contacts having sufficient
`flexibility to enable more than one contact to contact
`said other region.
`16. A chassis for housing electronic devices comprising:
`a base section;
`a cover section, said cover section attaching to said base
`section such mat at least a plurality of cover section
`regionscontact a plurality of base sectionregions;and
`a plurality of flexible contacts homogeneously formed „
`from at least one of said base section and said cover
`section,whereineach of said flexible contacts is sepa
`rated from said at least one of said base section and said
`cover section by a slot so thatsaidflexible contactmay
`
`25
`
`8
`move outwardly from said at least one of said base
`section and said cover section to contact the other of
`said base section and said cover sectionto provide an
`electrical connectiontherebetween to provide continu
`ity between EMF shielding provided by said base
`section and EMF shielding provided by said cover
`section.
`17. A chassis as defined in claim 16. wherein said flexible
`contacthas a protrusionpartiallytraversing the width of the
`flexible contact, said protrusion further enhancing contact
`between said flexible contact and the other of said base
`section and said cover section.
`18. The chassis as defined in claim 16. wherein said
`flexible contact is generally flat and biased outward from
`said one of said base section and said cover section toward
`the other of said base section and said cover section by a
`single bend, said single bend located where said flexible
`contact breaks the general plane of said one of said base
`section and said cover section from which said flexible
`contact is integrally formed.
`19. A chassis for housing electronic devices comprising:
`abase;
`a cover;
`a plurality of flexible contacts formed as part of an
`original material from which at least one of said base
`and said cover portion is formed; and
`a first end of each contact being a continuum of said
`original material, and a second end of each contact
`moving with respect to said cover portion, each said
`contact flexing between said respective first end and
`said respective second end.
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 10 of 11 PageID# 214
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`CERTIFICATE OF CORRECTION
`
`PATENT NO.
`DATED
`INVENTOR(S)
`
`: 5,777,854
`: July 7, 1998
`: Randall S. Welch et al.
`
`Page 1of 1
`
`It is certified that errorappears inthe above-identified patent and that said Letters Patent is
`hereby corrected as shown below:
`
`Title page. Item T541. and Column 1. line 1.
`In the Title, change "INTEGRATE" to -- INTEGRATED
`
`Signed and Sealed this
`
`Twenty-sixth Day of February, 2002
`
`Attest:
`
`AnestingOfficer
`
`JAMES E. ROGAN
`Directorof the Vnitcd StatesPatentand Trademark Office
`
`

`

`Case 3:14-cv-00757-REP-DJN Document 1-10 Filed 11/04/14 Page 11 of 11 PageID# 215
`
`UNITED STATES PATENT AND TRADEMARK OFFICE
`CERTIFICATE OF CORRECTION
`
`PATENT NO.
`DATED
`INVENTORY)
`
`5,777,854
`July 7,1998
`Welch et al.
`
`Page 1 of 1
`
`It is certified that error appears in the above-identified patent and that said Letters Patent is
`hereby corrected as shown below:
`
`Column 8.
`Line 29, insert —the other of at least one of said base portion and
`respect to" and "said cover portion."
`
`between "with
`
`Signed and Sealed this
`
`Third Day of May, 2005
`
`JON W. DUDAS
`Directorof theUnited StatesPatent and Trademark Office
`
`