US5375912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reclining chair
Assignee: STEVEN SIMONS
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Filing: 1993-07-29
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Granted: 1994-12-27
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Expires: 2013-07-29
Abstract
Abstract A reclining chair including a support base, a chair having seat and back portions integrally formed, a lever arm fixed to and extending from a bottom and forward portion of the seat portion, a means for pivotally coupling the forward portion of the seat portion to the base portion such that the seat portion pivotally moves substantially about a pivoting axis passing through an expected vicinity of a pivoting axis of a knee joint of a person sitting in the reclining chair, a roller engaging with a surface of the lever arm, a mechanism for moving the roller along the surface of the lever arm and a coil spring pivotally coupled at one end to the support base and rotatably coupled to the roller at the other end.
Inventors
- 👤 Edward L. Stulik
- 👤 Bruce Burness
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:14
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/02; A47C3/025; A47C3/026; A47C7/00; A47C7/36; A47C7/40; A47C7/44; A47C7/441; A47C7/443
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
184 words
A reclining chair comprising: a support base; a chair comprising a seat portion and a back portion integrally formed with the seat portion; at least one lever arm fixed to and extending from the bottom and forward portions of said seat portion, said lever arm having an engaging surface along a length thereof; a means for pivotally coupling said forward portion of said seat portion to said base portion such that said seat portion pivotally moves substantially about a pivoting axis located adjacent said forward portion; a roller means engaging with said engaging surface of said lever arm; a means for moving said roller means along said engaging surface and presetting an engaging position between said roller means and said engaging surface; and a coil spring means pivotally coupled at one end to said support base and rotatably coupled to said roller means at another end; whereby a force per unit distance of recline of said seat portion as said chair is reclined may be varied and a reclining chair which is comfortable to sit in by both heavy and light persons is provided.
Claim 2
Dependent Claim
184 words
A reclining chair comprising: a support base; a chair comprising a seat portion and a back portion integrally formed with the seat portion; at least one lever arm fixed to and extending from the bottom and forward portions of said seat portion, said lever arm having an engaging surface along a length thereof; a means for pivotally coupling said forward portion of said seat portion to said base portion such that said seat portion pivotally moves substantially about a pivoting axis located adjacent said forward portion; a roller means engaging with said engaging surface of said lever arm; a means for moving said roller means along said engaging surface and presetting an engaging position between said roller means and said engaging surface; and a coil spring means pivotally coupled at one end to said support base and rotatably coupled to said roller means at another end; whereby a force per unit distance of recline of said seat portion as said chair is reclined may be varied and a reclining chair which is comfortable to sit in by both heavy and light persons is provided.
Claim 3
Dependent Claim
48 words
A reclining chair according to claim 1, wherein said lever arm is further provided with a preload ramp portion of increasing thickness in a direction along a line extending from a connection of the lever arm to the seat portion toward a free end of said lever arm.
Claim 4
Dependent Claim
171 words
A reclining chair comprising: a support base; a chair comprising a seat portion and a back portion integrally formed with said seat portion; at least one lever arm fixed and extending from a bottom and forward portion of said seat portion, said lever arm having an engaging surface along a length thereof; a means for pivotally coupling the forward portion of said seat portion to said base portion such that said seat portion pivotally moves substantially about a pivoting axis located adjacent said forward portion; a roller means engaging with said engaging surface of said lever arm; a means for moving said roller means along said engaging surface and presetting an engaging position between said roller means and said engaging surface; and a coil spring means pivotally coupled between said support base and said roller means; whereby a force per unit distance of recline as said seat portion is reclined may be varied and a reclining chair which is comfortable to sit in by both heavy and light persons is provided.
Claim 5
Dependent Claim
171 words
A reclining chair comprising: a support base; a chair comprising a seat portion and a back portion integrally formed with said seat portion; at least one lever arm fixed and extending from a bottom and forward portion of said seat portion, said lever arm having an engaging surface along a length thereof; a means for pivotally coupling the forward portion of said seat portion to said base portion such that said seat portion pivotally moves substantially about a pivoting axis located adjacent said forward portion; a roller means engaging with said engaging surface of said lever arm; a means for moving said roller means along said engaging surface and presetting an engaging position between said roller means and said engaging surface; and a coil spring means pivotally coupled between said support base and said roller means; whereby a force per unit distance of recline as said seat portion is reclined may be varied and a reclining chair which is comfortable to sit in by both heavy and light persons is provided.
Claim 6
Dependent Claim
45 words
A reclining chair according to claim 3, wherein said lever arm is further provided with a preload ramp portion of increasing thickness in a direction extending from a connection of the lever arm to the seat portion toward a free end of said lever arm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-26 | 1998-06-27 | 1998-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-26 | 2002-06-27 | 2002-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-26 | 2006-06-27 | 2006-12-27 | $7700.00 | Window Closed / Lapsed |