# US 2014/0191081 A1 · Seat Base For Aircraft > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0191081 A1 - Document ID: US20140191081A1 - Status: Published application - Kind: A1 - Application number: 13/738,755 - Filed: 2013-01-10 - Published: 2014-07-10 - Earliest claimed: 2013-01-10 - Assignees: Cessna Aircraft Company - Applicants: Cessna Aircraft Company - Inventors: Barry Ward; Daniel James Hoverson; Prasannakumar Bhonge; Thang Chien Phi - Web page: https://patentgrep.com/patent/US20140191081A1 ## CPC - B64D 11/06: {Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D25/04)} - B64D 11/0619: {with energy absorbing means specially adapted for mitigating impact loads for passenger seats, e.g. at a crash} - B64D 11/0689: {specially adapted for pilots} - B64D 11/0696: {Means for fastening seats to floors, e.g. to floor rails} - B64D 25/04: Seat modifications - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT ## Abstract A seat base for use in aircraft has a first cross member, a second cross member, a first leg, a second leg, and a base plate having a first bendable tab and a second bendable tab facing away from the first tab. The first cross member, the second cross member, and the base plate are each configured to be secured to the first and second legs in an extended position and a retracted position. The first and second legs are configured to be secured to seat feet and floor tracking rails. The first and second cross members are secured to the base plate so as to allow for selective rotation of the first and second cross members in response to relative vertical movement of the first leg with respect to the second leg. ## Claims ### Claim 1 A seat base for use in aircraft comprising: a first cross member and a second cross member; a first leg and a second leg; and a base plate having a first bendable tab and a second bendable tab facing away from the first tab; wherein the first cross member, the second cross member, and the base plate are each configured to be secured to the first and second legs in an extended position and a retracted position; wherein the first and second legs are configured to be secured to seat feet and floor tracking rails; wherein the first and second cross members are secured to the base plate so as to allow for selective rotation of the first and second cross members in response to relative vertical movement of the first leg with respect to the second leg. ### Claim 2 (depends on 1) The seat base of claim 1, wherein: the first leg is generally identical to the second leg; and the first cross member is generally identical to the second cross member. ### Claim 3 (depends on 2) The seat base of claim 2 wherein: the first and the second legs each have a central slot; the first bendable tab is secured within the central slot of the first leg; and the second bendable tab is secured within the central slot of the second leg. ### Claim 4 (depends on 3) The seat base of claim 3, wherein: the first leg and the second leg each have a proximal slot and a distal slot; the first cross member is secured within the proximal slot of the first leg and the proximal slot of the second leg; and the second cross member is secured within the distal slot of the first leg and the distal slot of the second leg. ### Claim 5 (depends on 4) The seat base of claim 4, wherein the first and second tabs are configured to bend in response to relative vertical movement of the first leg with respect to the second leg. ### Claim 6 (depends on 1) The seat base of claim 1 wherein: the first leg and the second leg each include a receiving member; each receiving member has two semi-circular portions. ### Claim 7 (depends on 6) The seat base of claim 6 wherein the seat feet comprise semi-circular grooves configured to mate with the semi-circular portions. ### Claim 8 (depends on 1) The seat base of claim 1 further comprising a swivel ring secured to the base plate. ### Claim 9 (depends on 8) The seat base of claim 8 wherein the swivel ring comprises a plurality of openings, each opening in the plurality being spaced about four degrees apart from an adjacent opening. ### Claim 10 (depends on 8) The seat base of claim 8 wherein: the first and second legs each have a straight portion and a sloped portion; and leg space afforded by the seat base in retracted and extended positions is about nine inches and about twelve inches respectively. ### Claim 11 A seat base comprising: a first leg having a side surface and a top surface, a first proximal slot, a first central slot and a first distal slot extending through the first leg side surface, a first proximal opening upwardly adjacent the first proximal slot, a first central opening upwardly adjacent the first central slot, and a first distal opening upwardly adjacent the first distal slot extending through the first leg top surface; a second leg having a side surface and a top surface, a second proximal slot, a second central slot, and a second distal slot extending through the second leg side surface, a second proximal opening upwardly adjacent the second proximal slot, a second central opening upwardly adjacent the second central slot, and a second distal opening upwardly adjacent the second distal slot extending through the second leg top surface; a first cross member having a top surface and a side surface with a first central aperture extending therethrough, the first cross member including at opposing ends a first side member and a second side member, the first side member having a first aperture and a second aperture extending through the top surface, the second side member having a third aperture and a fourth aperture extending through the top surface; a second cross member having a top surface and a side surface with a second central aperture extending therethrough, the second cross member including at opposing ends a third side member and a fourth side member, the third side member having a fifth aperture and a sixth aperture extending through the top surface, the fourth side member having a seventh aperture and an eight aperture extending through the top surface; and a base plate having a first attachment member, a second attachment member, a first bendable tab, and a second bendable tab, the first attachment member and the first tab respectively facing away from the second attachment member and the second tab; wherein the first cross member, the second cross member, and the base plate are each configured to be secured to the first and second legs in an extended position and a retracted position; wherein the first and second legs are configured to be secured to seat feet and floor tracking rails; wherein the first and second cross members are secured to the base plate so as to allow for selective rotation of the first and second cross members in response to relative vertical movement of the first leg with respect to the second leg. ### Claim 12 (depends on 11) The seat base of claim 11, further comprising a swivel ring secured to the base plate; and wherein the swivel ring comprises a plurality of openings, each opening in the plurality being spaced about four degrees apart from an adjacent opening. ### Claim 13 (depends on 12) The seat base of claim 12, wherein the first and second tabs are designed to bend in response to relative vertical movement of the first leg with respect to the second leg. ### Claim 14 (depends on 13) The seat base of claim 13 wherein: the first leg and the second leg each include a receiving member; each receiving member has two semi-circular portions. ### Claim 15 (depends on 15) The seat base of claim 15 wherein the seat feet comprise semi-circular grooves configured to mate with the semi-circular portions. ### Claim 16 A seat base for use in aircraft comprising: a first cross member and a second cross member; a first leg and a second leg; and a base plate having a first bendable tab and a second bendable tab facing away from the first tab; wherein the first and second cross members are secured to the base plate so as to allow for selective rotation of the first and second cross members in response to relative vertical movement of the first leg with respect to the second leg. wherein the first cross member, the second cross member, and the base plate are each configured to be secured to the first and second legs in an extended position and a retracted position. ### Claim 17 A seat base comprising: a first cross member and a second cross member; a first leg and a second leg; and a base plate having a first bendable tab and a second bendable tab facing away from the first tab; wherein the first and second legs are configured to be secured to seat feet and floor tracking rails. ### Claim 18 (depends on 17) The seat base of claim 17 wherein the seat feet comprise semi-circular grooves configured to mate with the semi-circular portions. ### Claim 19 (depends on 18) The seat base of claim 18, wherein the first leg includes a first central slot for reception of the first bendable tab and the second leg includes a second central slot for reception of the second tab.