# US 2017/0285697 A1 · Single piece card retainer > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0285697 A1 - Document ID: US20170285697A1 - Status: Published application - Kind: A1 - Application number: 15/087,117 - Filed: 2016-03-31 - Published: 2017-10-05 - Earliest claimed: 2016-03-31 - Assignees: Lenovo (Singapore) Pte. Ltd. - Applicants: Lenovo (Singapore) Pte. Ltd. - Inventors: Ali Kathryn Ent; Rodrigo Samper; Shuang Li; Chen Jianyang - Web page: https://patentgrep.com/patent/US20170285697A1 ## CPC - G06F 1/185: Mounting of expansion boards - G06F 1/181: {Enclosures (for portable computers G06F1/1613)} - G06F 1/186: Securing of expansion boards in correspondence to slots provided at the computer enclosure - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract One embodiment provides an apparatus, including: a processor; a housing including a plurality of slots; and a single piece card retainer, comprising: a back surface; a front surface comprising a plurality of independent projections, wherein each of the plurality of independent projections is flexible and aligns with a slot of the plurality of slots; and at least two connection points that connect the single piece card retainer to the housing, where the single piece card retainer rotates about the at least two connection points to open and close with respect to the plurality of slots. Other embodiments are described and claimed. ## Claims ### Claim 1 An apparatus, comprising: a processor; a housing including a plurality of slots; and a single piece card retainer, comprising: a back surface; a front surface comprising a plurality of independent projections, wherein each of said plurality of independent projections is flexible and aligns with a slot of the plurality of slots; and at least two connection points that connect the single piece card retainer to the housing, wherein said single piece card retainer rotates about the at least two connection points to open and close with respect to the plurality of slots. ### Claim 2 (depends on 1) The apparatus of claim 1, further comprising a card operatively coupled to the processor and disposed within one of the plurality of slots. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the single piece card retainer comprises a lateral surface having a detent therein. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the lateral surface comprises two lateral surfaces, said two lateral surfaces bookending the plurality of independent projections. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein, in a first, closed position, said back surface of said single piece card retainer lies substantially flush with a lip of said housing. ### Claim 6 (depends on 5) The apparatus of claim 5, wherein the detent of the lateral surface accepts a projection of the housing in the first, closed position. ### Claim 7 (depends on 4) The apparatus of claim 4, wherein, in a first, closed position, said plurality of independent projections bias an element within said plurality of slots in a direction away from the back surface. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the element is selected from the group consisting of a card and a card insert. ### Claim 9 (depends on 8) The apparatus of claim 8, wherein the card is a graphics card. ### Claim 10 An apparatus, comprising: a housing comprising a plurality of card slots; and a single piece card retainer, comprising: a back surface; a front surface comprising a plurality of independent projections, wherein each of said plurality of independent projections is flexible and aligns with a card slot of the plurality of card slots; and at least two connection points that connect the single piece card retainer to a housing, wherein said single piece card retainer rotates about the at least two connection points to open and close with respect to the plurality of card slots. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the single piece card retainer comprises a lateral surface having a detent therein. ### Claim 12 (depends on 11) The apparatus of claim 11, wherein the lateral surface comprises two lateral surfaces, said two lateral surfaces bookending the plurality of independent projections. ### Claim 13 (depends on 12) The apparatus of claim 12, wherein, in a first, closed position, said back surface of said single piece card retainer lies flush with a lip of said housing. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the detent of the lateral surface accepts a projection of the housing in the first, closed position. ### Claim 15 (depends on 10) The apparatus of claim 10, wherein said single piece card retainer is plastic. ### Claim 16 (depends on 15) The apparatus of claim 15, wherein the plurality of independent projections are curved outwardly from a central portion of the single piece card retainer. ### Claim 17 An apparatus, comprising: a processor; a housing including a plurality of slots; a card operatively coupled to the processor and disposed within one of the plurality of slots; and a single piece card retainer, comprising: a back surface; a front surface comprising a plurality of independent projections, wherein each of said plurality of independent projections is flexible and aligns with a slot of the plurality of slots; and at least two connection points that connect the single piece card retainer to the housing, wherein said single piece card retainer rotates about the at least two connection points to open and close with respect to the plurality of slots. ### Claim 18 (depends on 17) The apparatus of claim 17, wherein said single piece card retainer is plastic. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the plurality of independent projections flex independently. ### Claim 20 (depends on 17) The apparatus of claim 17, wherein the card is a graphics card.