# US 10,244,871 B2 · Cushion > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,244,871 B2 - Document ID: US10244871B2 - Status: Granted - Kind: B2 - Application number: 15/488,032 - Filed: 2017-04-14 - Published: 2018-10-18 - Granted: 2019-04-02 - Earliest claimed: 2017-04-14 - Applicants: Chun-Fu Kuo - Inventors: Chun-Fu Kuo - Web page: https://patentgrep.com/patent/US10244871B2 ## CPC - A47C 7/744: {with active means, e.g. by using air blowers or liquid pumps} - A47C 21/044: {with active means, e.g. by using air blowers or liquid pumps} - A47C 27/006: {breathable} - A47C: CHAIRS; SOFAS; BEDS ## Abstract A cushion is provided, including: a first recoverable layer, having a first flow passageway; a second recoverable layer, having a second flow passageway; a separation layer, located between the first and second recoverable layers, one of two ends of the separation layer having a passage, the first flow passageway, the passage and the second flow passageway forming a circulation flow passageway, the first and second recoverable layers being connected with the separation layer; a outer layer, encompassing and being connected with the first recoverable layer, the second recoverable layer and a side portion of the separation layer. ## Claims ### Claim 1 A cushion, including: a first recoverable layer, having a first flow passageway; a second recoverable layer, having a second flow passageway; a separation layer, located between the first and second recoverable layers, one of two ends of the separation layer having a passage, the first flow passageway, the passage and the second flow passageway forming a circulation flow passageway, the first and second recoverable layers being connected with the separation layer; an outer layer, encompassing and being connected with the first recoverable layer, the second recoverable layer and a side portion of the separation layer. ### Claim 2 (depends on 1) The cushion of claim 1, wherein the outer layer is air-impermeable. ### Claim 3 (depends on 1) The cushion of claim 1, wherein a thickness of the second recoverable layer is between 1.00 cm and 50.00 cm. ### Claim 4 (depends on 1) The cushion of claim 1, wherein a thickness of the first recoverable layer is between 1.00 cm and 20.00 cm. ### Claim 5 (depends on 1) The cushion of claim 1, wherein the separation layer is air-impermeable. ### Claim 6 (depends on 1) The cushion of claim 1, wherein the separation layer is air-permeable, the separation layer has a plurality of pores communicating with the first and second recoverable layers, and a total of the plurality of pores of the separation layer is smaller than a cross-sectional area of the passage. ### Claim 7 (depends on 1) The cushion of claim 1, wherein the circulation flow passageway has an inlet end and an outlet end, and the outlet end has at least one venting hole. ### Claim 8 (depends on 7) The cushion of claim 7, further including an inflation device, the inflation device having an inflation hole which communicates with the inlet end. ### Claim 9 (depends on 7) The cushion of claim 7, further including a circulation driving device, the circulation driving device communicating with the inlet end and the outlet end, the circulation driving device further including a circulation pump, a heat-exchanging device, a plurality of temperature detecting components, the plurality of temperature detecting components being disposed on at least one of the outer layer, the passage, the inlet end and the outlet end, the heat-exchanging device being electrically connected to each said temperature detecting component, the heat-exchanging device having an inflation hole, the circulation pump being electrically connected to at least two of the temperature detecting components. ### Claim 10 (depends on 7) The cushion of claim 7, wherein the outer layer is air-permeable, the outer layer has a plurality of pores communicating with outside, and a total cross-sectional area of the plurality of pores is smaller than a cross-sectional area of the at least one venting hole. ### Claim 11 (depends on 10) The cushion of claim 10, further including an inflation device, the inflation device having an inflation hole which communicates with the inlet end. ### Claim 12 (depends on 10) The cushion of claim 10, further including a circulation driving device, the circulation driving device communicating with the inlet end and the outlet end, the circulation driving device further including a circulation pump, a heat-exchanging device, a plurality of temperature detecting components, the plurality of temperature detecting components being disposed on at least one of the outer layer, the passage, the inlet end and the outlet end, the heat-exchanging device being electrically connected to each said temperature detecting component, the heat-exchanging device having an inflation hole, the circulation pump being electrically connected to at least two of the temperature detecting components. ### Claim 13 (depends on 10) The cushion of claim 10, wherein the first and second recoverable layers each have a stereoscopic mesh fabric configuration; the outer layer is a cloth layer or a water-proof ventilating film layer; the separation layer is a cloth layer or a film layer, the separation layer has a plurality of pores communicating with the first and second recoverable layers, and a total cross-sectional area of the plurality of pores of the separation layer is smaller than a cross-sectional area of the passage; the separation layer is made of a soft material; a thickness of the first recoverable layer is between 1.00 cm and 20.00 cm; and a thickness of the second recoverable layer is between 1.00 cm and 50.00 cm. ### Claim 14 (depends on 13) The cushion of claim 13, further including an inflation device, the inflation device having an inflation hole which communicates with the inlet end. ### Claim 15 (depends on 13) The cushion of claim 13, further including a circulation driving device, the circulation driving device communicating with the inlet end and the outlet end, the circulation driving device further including a circulation pump, a heat-exchanging device, a plurality of temperature detecting components, the plurality of temperature detecting components being disposed on at least one of the outer layer, the passage, the inlet end and the outlet end, the heat-exchanging device being electrically connected to each said temperature detecting component, the heat-exchanging device having an inflation hole, the circulation pump being electrically connected to at least two of the temperature detecting components.