# US 9,883,610 B1 · Electronic device filter door > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,883,610 B1 - Document ID: US9883610B1 - Status: Granted - Kind: B1 - Application number: 15/280,644 - Filed: 2016-09-29 - Granted: 2018-01-30 - Earliest claimed: 2016-09-29 - Assignees: Amazon Technologies, Inc. - Applicants: Amazon Technologies, Inc. - Inventors: Christopher Strickland Beall; Frank Charles Paterra; Darin Lee Frink - Web page: https://patentgrep.com/patent/US9883610B1 ## CPC - G06F 1/181: {Enclosures (for portable computers G06F1/1613)} - G06F 1/20: Cooling means - G11B 33/02: Cabinets; Cases; Stands; Disposition of apparatus therein or thereon - G11B 33/14: Reducing influence of physical parameters, e.g. temperature change, moisture, dust - G11B 33/142: {by air cooling} - G11B 33/1446: {Reducing contamination, e.g. by dust, debris} - G11B 33/146: {constructional details of filters} - H05K 5/03: Covers - H05K 7/20181: {Filters; Louvers} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract An electronic device may include a door filter that is moveable to transition between a first position that enables visibility of a display located behind or underneath the filter and a second position that causes air entering the electronic device to pass through an air filter. In some embodiments, the door filter may be moveable or rotatable relative to a door filter frame that is removably coupled to an electronic device housing and located over an aperture in the electronic device housing. The door filter may include a first portion that couples to a second portion to secure or at least partially enclose the air filter. When the door filter frame is decoupled from the electronic device, a security door may close the aperture by engaging the same coupling points in the electronic device housing as previously engaged by the door filter frame. ## Claims ### Claim 1 An electronic device comprising: an electronic device housing that includes a frame to couple components of the electronic device, the electronic device housing configured to protect the electronic device during a shipment of the electronic device, the electronic device including an aperture to enable airflow into the electronic device; a display coupled to the frame and recessed within the aperture of the electronic device housing; a security door to selectively move between a closed position to cover the aperture when the electronic device is configured for the shipment and a stowed position where the security door is stowed in the electronic device housing enabling airflow into the electronic device and access to the display; and a door filter assembly to selectively couple to the electronic device housing when the security door is in the stowed position, the door filter assembly comprising: a door filter frame configured to couple to the electronic device housing; and a door filter casing configured to rotate from a first position to reveal the display to a second position to cover the aperture with an air filter configured to filter air flowing into the electronic device. ### Claim 2 (depends on 1) The electronic device as recited in claim 1, wherein the door filter casing includes a first portion that removably couples to a second portion of the door filter casing to at least partially enclose the air filter and to enable replacement of the air filter. ### Claim 3 (depends on 1) The electronic device as recited in claim 1, wherein the door filter casing includes a filter aperture that extends through the air filter and through the door filter casing to enable visibility of a portion of the display through the filter aperture while the door filter casing is located in the second position, the air filter to filter air flowing into the electronic device that travels through the aperture and around the display. ### Claim 4 (depends on 1) The electronic device as recited in claim 1, wherein the door filter casing includes a prism or light pipe that extends through the air filter and the door filter casing to enable light from the display to be projected outside of the door filter casing while the door filter casing is located in the second position. ### Claim 5 (depends on 1) The electronic device as recited in claim 1, wherein the door filter casing includes at least a first component to indicate that the door filter casing is in the second position, the first component being a mechanical switch, a magnet, or a portion of an electrical circuit. ### Claim 6 (depends on 1) The electronic device as recited in claim 1, wherein the door filter frame includes a first feature that couples to a corresponding second feature of the electronic device housing when the door filter frame is coupled to the electronic device housing, and wherein the security door includes a third feature that couples to the corresponding second feature when the security door is in the closed position. ### Claim 7 A door filter to selectively couple to a device housing of an electronic device, the door filter comprising: a door filter frame configured to couple to the device housing, the door filter frame including a coupling feature to removably couple to the device housing and a hinge feature to couple to a hinge, the door filter frame including a frame aperture that at least partially aligns with a device aperture of the device housing; and a door filter casing configured to couple to the door filter frame via the hinge that engages the hinge feature of the door filter frame, the door filter casing configured to rotate between a first position to enable access through the device aperture and a second position to cover the device aperture with an air filter to filter air flowing into the device aperture. ### Claim 8 (depends on 7) The door filter as recited in claim 7, wherein the door filter casing includes a first portion that removably couples to a second portion to at least partially enclose the air filter. ### Claim 9 (depends on 7) The door filter as recited in claim 7, wherein the door filter casing includes: a window aperture that extends through the filter and the door filter casing to enable visibility through at least a portion of the device aperture while the door filter casing is located in the second position; and a window that covers the window aperture and inhibits airflow through the window aperture while enabling visibility through the window and through the device aperture. ### Claim 10 (depends on 7) The door filter as recited in claim 7, wherein the door filter casing includes an optical indicator component that extends through the filter and the door filter casing to enable light from a light source to be projected outside of the door filter casing while the door filter casing is located in the second position. ### Claim 11 (depends on 7) The door filter as recited in claim 7, wherein the door filter casing includes at least a first component to indicate that the door filter casing is in the second position, the first component being a mechanical switch, a magnet, or a portion of an electrical circuit. ### Claim 12 (depends on 7) The door filter as recited in claim 7, wherein the door filter frame includes a flange that extends outward from and substantially parallel with a front surface of the door filter casing, the flange at least partially surrounding the door filter frame to inhibit airflow around the door filter frame when the door filter frame is coupled to the device housing. ### Claim 13 An apparatus comprising: a housing that includes a housing aperture to enable airflow into the housing; a security door to selectively move between a closed position to cover the housing aperture and an open position where the security door allows airflow into the housing; and a door filter to selectively couple to the housing when the security door is in the open position, the door filter comprising: a door filter frame to couple to the housing; and a door filter casing configured to rotate from a first position to enable access through the housing aperture to a second position to cover the housing aperture with a filter to filter air flowing into the housing. ### Claim 14 (depends on 13) The apparatus as recited in claim 13, wherein the door filter casing includes a first portion that mates with a second portion to at least partially enclose the filter. ### Claim 15 (depends on 13) The apparatus as recited in claim 13, wherein the door filter casing includes a component or sensor to indicate that the door filter casing is in the second position. ### Claim 16 (depends on 13) The apparatus as recited in claim 13, wherein the housing include a cavity to stow the door filter when the door filter is in the first position as a first stowed position, and wherein the door filter includes a coupling feature to prevent the door filter from being removed from the housing while transitioning between the first stowed position and the second position. ### Claim 17 (depends on 13) The apparatus as recited in claim 13, wherein the door filter frame includes a flange that extends outward from and parallel with a front surface of the door filter casing, the flange at least partially surrounding the door filter frame to inhibit airflow around the door filter frame when the door filter frame is coupled to the housing. ### Claim 18 (depends on 13) The apparatus as recited in claim 13, wherein the door filter frame includes a first feature that couples to a corresponding second feature of the housing when the door filter is coupled to the housing, and wherein the security door includes a third feature that couples to the corresponding second feature when the security door is in the closed position. ### Claim 19 (depends on 13) The apparatus as recited in claim 13, further comprising a display coupled to the housing and recessed within the housing aperture of the housing; and wherein the door filter casing includes a filter aperture that extends through the filter and the door filter casing to make a portion of the display visible through the filter aperture while the door filter casing is located in the second position, the filter to filter air flowing into the housing that travels through the housing aperture and around the display. ### Claim 20 (depends on 13) The apparatus as recited in claim 13, further comprising a display coupled to the housing and recessed within the housing aperture of the housing; and wherein the door filter casing includes an optical indicator component that extends through the filter and the door filter casing to enable light from the display to pass through the door filter casing while the door filter casing is located in the second position.