# US 8,770,664 B1 · Reclining chair with two positions of repose > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,664 B1 - Document ID: US8770664B1 - Status: Granted - Kind: B1 - Application number: 14/032,993 - Filed: 2013-09-20 - Granted: 2014-07-08 - Earliest claimed: 2013-09-20 - Assignees: University of South Florida - Applicants: Daniel Jose Leal - Inventors: Daniel Jose Leal - Web page: https://patentgrep.com/patent/US8770664B1 ## CPC - A47C 9/002: {with exercising means or having special therapeutic or ergonomic effects} - A47C 1/032: the parts being movably-coupled seat and back-rest (A47C1/035 takes precedence) - A47C 3/029: with curved rocking members resting on the floor - A47C 7/002: {Chair or stool bases (A47C3/20 takes precedence)} - A47C: CHAIRS; SOFAS; BEDS ## Abstract A reclining chair having two stable positions of repose: an upright position and a reclined position. The chair having two peripheral supports and multiple intermediate supports disposed between the peripheral supports. Both the peripheral supports and the intermediate supports having integrated legs with three contact areas. In the upright position, only the first and the second contact areas contact the support surface, while in the reclined position only the third contact area contacts the support surface. The chair has a seat, a backrest, and an optional headrest. Armrest supports may be positioned on exterior sides of the peripheral supports to form an armrest and provide additional lateral stability. ## Claims ### Claim 1 A chair having two positions of repose, comprising: two peripheral supports, at least one medial support disposed between the peripheral supports in a parallel alignment therewith, the peripheral supports and the medial support having integrated legs, each integrated leg having a first, a second, and a third contact areas, the first and the second contact areas being separated by a longitudinally extending gap, wherein in the first position of repose, the first and the second contact areas together form sole points of engagement between the chair and a support surface, and in a second position of repose, the third contact area is the sole point of engagement between the chair and the support surface, the chair being stable in both the first and the second positions of repose; and a seat and a backrest disposed between the two peripheral supports, the seat and the backrest resting on the medial support; whereby in the first position of repose, a center of gravity is between the first and the second contact areas, and in the second position of repose, the center of gravity is aft the second contact area, transitioning between the first and the second positions of repose is achievable by shifting the center of gravity. ### Claim 2 (depends on 1) A chair according to claim 1, further comprising: two armrest supports disposed on exterior sides of the peripheral supports, the armrest supports and peripheral supports collectively forming an armrest, the armrest supports having the integrated legs with three contact areas. ### Claim 3 (depends on 1) A chair according to claim 1, further comprising: A headrest disposed between the two peripheral supports and resting on the medial supports. ### Claim 4 (depends on 1) A chair according to claim 1, wherein the medial supports contain grooves configured to receive the seat and the backrest, the grooves restricting longitudinal movement of the seat and the backrest, and the peripheral supports restricting lateral movement thereof. ### Claim 5 (depends on 1) A chair according to claim 1, wherein the chair has between one and seven medial supports. ### Claim 6 (depends on 1) A chair according to claim 1, wherein the medial supports are equidistantly spaced. ### Claim 7 (depends on 1) A chair according to claim 1, further comprising a plurality of fastener rods securing together the peripheral supports and the medial supports. ### Claim 8 (depends on 1) A chair according to claim 1, wherein the peripheral supports and the medial supports are wooden or plastic. ### Claim 9 (depends on 1) A chair according to claim 1, wherein the third contact area is a contact edge. ### Claim 10 (depends on 1) A chair according to claim 1, wherein the integrated legs have a path of travel angling upward from the first contact area toward the second contact area, angling downward to the second contact area, and angling upward from the second contact area toward a trailing edge of the chair, all angling portions being substantially straight. ### Claim 11 A chair having two positions of repose, comprising: two peripheral supports, each peripheral support having a front leg; a plurality of medial supports disposed between the peripheral supports in a parallel alignment therewith, the peripheral supports and the medial supports having integrated rear legs, each integrated rear leg having a first and a second contact areas, wherein a first position of repose, the front legs and the first contact area of the rear legs together form sole points of engagement between the chair and a support surface, and in a second position of repose, the second contact area of the rear legs is the sole point of engagement between the chair and the support surface, the chair being stable in both the first and the second positions of repose; and a seat and a backrest disposed between the two peripheral supports, the seat and the backrest resting on the medial supports; whereby in the first position of repose, a center of gravity is between the front legs and the first contact area of the rear legs, and in the second position of repose, the center of gravity is aft the first contact area of the rear legs, the transitioning between the first and the second positions of repose is achievable by shifting the center of gravity. ### Claim 12 (depends on 11) A chair according to claim 11, wherein the medial supports contain grooves configured to receive the seat and the backrest, the grooves restricting the longitudinal movement of the seat and the backrest, and the peripheral supports restricting the lateral movement thereof. ### Claim 13 (depends on 11) A chair according to claim 11, wherein the chair has between one and five medial supports. ### Claim 14 (depends on 11) A chair according to claim 11, wherein the medial supports are equidistantly spaced. ### Claim 15 (depends on 11) A chair according to claim 11, further comprising a plurality of fastener rods securing together the peripheral supports and the medial supports. ### Claim 16 (depends on 11) A chair according to claim 11, wherein the peripheral supports and the medial supports are wooden or plastic. ### Claim 17 (depends on 11) A chair according to claim 11, wherein the second contact area is a contact edge. ### Claim 18 (depends on 11) A chair according to claim 11, wherein the rear integrated legs have triangular shape with one side of the triangle being the third contact area.