# US 8,149,578 B2 · Airflow restrictor door > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,149,578 B2 - Document ID: US8149578B2 - Status: Granted - Kind: B2 - Application number: 12/610,314 - Filed: 2009-10-31 - Published: 2011-05-05 - Granted: 2012-04-03 - Earliest claimed: 2009-10-31 - Assignees: Hewlett-Packard Development Company, L.P. - Inventors: Matthew Daniel Neumann; Sean Anthony Cerniglia - Web page: https://patentgrep.com/patent/US8149578B2 ## CPC - G06F 1/20: Cooling means - G06F 1/181: {Enclosures (for portable computers G06F1/1613)} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract An airflow restrictor door is pivotably supported by and extends from a support towards a card receiving bay. ## Claims ### Claim 1 An apparatus comprising: a card receiving bay; a support opposite the bay, the support including a pocket; and a first airflow restrictor door pivotably supported by and extending from the support towards the bay, the door comprising: a proximal end having a proximal end surface adjacent the support and facing away from the support towards the bay; and a distal end having a distal end surface facing away from the support towards the bay, wherein the first door is pivotable between an extended position across the bay and a retracted position from the bay and wherein the distal end surface is at least partially received in the pocket when in the retracted position. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the first door is resiliently biased towards the extended position. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the first door obliquely extends from the support when in the extended position. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the first door includes a foot having a curved lower surface. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the foot has a spline along the lower surface. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the first door extends substantially parallel to the bay in the retracted position. ### Claim 7 (depends on 1) The apparatus of claim 1, wherein the first door includes a first stop surface and wherein the support includes a second stop surface, the first stop surface and the second stop surface abutting contact to limit pivoting of the first door towards the bay. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the first stop surface abuts the second stop surface to support the first door obliquely to the bay. ### Claim 9 (depends on 1) The apparatus of claim 1, wherein the first door extends from the support at an angle of less than or equal to about 60 degrees when in the extended position. ### Claim 10 (depends on 1) The apparatus of claim 1, wherein the first door includes a foot having a curved lower surface facing the bay. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the foot has a spline along the lower surface. ### Claim 12 (depends on 1) The apparatus of claim 1 further comprising a DIMM memory card received within the bay, wherein the first door contacts and edge of the DIMM card. ### Claim 13 (depends on 1) The apparatus of claim 1 further comprising: a second card receiving bay; and a second airflow restrictor door pivotably supported by and extending from the support towards the second bay. ### Claim 14 (depends on 13) The apparatus of claim 13, wherein the first door and the second door are pivotable about a same axis. ### Claim 15 (depends on 1) The apparatus of claim 1, wherein the door has a width of at least about 6 mm. ### Claim 16 An apparatus comprising: a first card receiving bay; a second card receiving bay; a support opposite the first bay and the second bay, the support including a first pocket opposite the first bay and a second pocket opposite the second bay; a first airflow restrictor door pivotably supported by and extending from the support towards the first bay, the first door including a foot having a curved lower surface facing the bay, wherein the first door is pivotable between an extended position obliquely extending across the first bay and a retracted position in the first pocket and wherein the first door is resiliently biased towards the extended position; and a second airflow restrictor door pivotably supported by and extending from the support towards the second bay, the second door including a foot having a curved lower surface facing the bay, wherein the second door is pivotable between an extended position obliquely extending across the second bay and a retracted position in the second pocket and wherein the second door is resiliently biased towards the extended position. ### Claim 17 (depends on 1) The apparatus of claim 1, wherein the distal end surface comprises a portion configured to contact a card within the bay when the first airflow restrictor door is in the extended position and wherein the portion is received within the pocket when the first airflow restrictor door is in the retracted position. ### Claim 18 (depends on 1) The apparatus of claim 1, wherein the first airflow restrictor door have a front side facing the bay and a backside facing the support, wherein the first airflow restrictor door and the support form an open airflow space between the first airflow restrictor door and the support across the backside of the door between other bays adjacent opposite side of the bay. ### Claim 19 (depends on 1) The apparatus of claim 1, wherein the first airflow restrictor door has a foot, wherein a lower surface of the foot extends into the pocket when the first airflow restrictor door is in the retracted position. ### Claim 20 (depends on 1) The apparatus of claim 1, wherein an entirety of the first airflow restrictor door at a midpoint of the first airflow restrictor door between the distal end and the proximal end extends below a pivot axis of the first airflow restrictor door when the first airflow restrictor door is in the retracted position. ### Claim 21 An apparatus comprising: a card receiving bay; a support opposite the bay; and a first airflow restrictor door pivotably supported by and extending from the support towards the bay, wherein the first door is pivotable between an extended position across the bay and a retractable position from the bay and wherein the first door is resiliently biased towards the extended position, wherein the first door obliquely extends from the support when in the extended position and wherein the first door includes a foot having a curved lower surface. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein the foot has a spline along the lower surface. ### Claim 23 (depends on 22) The apparatus of claim 22, wherein the bay is configured to receive a card having a width and wherein the spline has a width less than the width of the card. ### Claim 24 (depends on 22) The apparatus of claim 22, wherein the spline is curved and smooth. ### Claim 25 (depends on 22) The apparatus of claim 22, wherein the spline has tapered sides. ### Claim 26 (depends on 22) The apparatus of claim 22, wherein the spline comprises an elongate strip protruding from the curved lower surface.