Patent US6402246B1 successfully refreshed from Google Patents.
US6402246B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simplified strap lumbar support device
Assignee: L&P Property Management Co
•
Filing: 2001-04-11
•
Granted: 2002-06-11
•
Expires: 2021-04-11
Abstract
Abstract A lumbar support device has a seat frame, a pair of brackets connected to the seat frame, a spring assembly connected to the pair of brackets in such a manner as to form a center section traversing the seat frame and a pair of cantilevered ends on opposite sides of the center section, and an actuator assembly operatively connecting the cantilevered ends. The pair of brackets respectively provide a pair of fulcrums about which the cantilevered ends can rotate. In operation, the actuator assembly moves the cantilevered ends of the spring assembly to bow the center portion. The lumbar support device may also have a single cantilevered end.
Inventors
- 👤 Donald David Mundell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:59
CPC Classifications
A; A61; A61F; A61F5/00; A61F5/01; A47; A47C; A47C7/00; A47C7/36; A47C7/40; A47C7/46; A47C7/462; A47C7/465
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
156 words
A lumbar support device, comprising: a first bracket having a first fulcrum; a second bracket located distally from said first bracket; a first spring having a first cantilevered end, a second end and a center section integrally formed with said first cantilevered end and said second end, said first cantilevered end rotatably connected to and cantilevered about said first bracket, said second end connected to said second bracket, and said center section traversing between said first bracket and said second bracket, wherein said first cantilevered end defines a first lever extending from said first fulcrum to a first distal end such that said first fulcrum is located between said first distal end and said center section; an actuator assembly operatively connected to said first distal end of said first lever, wherein said actuator assembly moves said first distal end and said first fulcrum stops said first lever from sliding and forces said first lever to rotate.
Claim 2
Dependent Claim
156 words
A lumbar support device, comprising: a first bracket having a first fulcrum; a second bracket located distally from said first bracket; a first spring having a first cantilevered end, a second end and a center section integrally formed with said first cantilevered end and said second end, said first cantilevered end rotatably connected to and cantilevered about said first bracket, said second end connected to said second bracket, and said center section traversing between said first bracket and said second bracket, wherein said first cantilevered end defines a first lever extending from said first fulcrum to a first distal end such that said first fulcrum is located between said first distal end and said center section; an actuator assembly operatively connected to said first distal end of said first lever, wherein said actuator assembly moves said first distal end and said first fulcrum stops said first lever from sliding and forces said first lever to rotate.
Claim 3
Dependent Claim
32 words
A lumbar support device according to claim 1 , further comprising a seat frame having a first side for attaching said first bracket and a second side for attaching said second bracket.
Claim 4
Dependent Claim
23 words
A lumbar support device according to claim 2 wherein said first bracket is integrally formed with said first side of said seat frame.
Claim 5
Dependent Claim
16 words
A lumbar support device according to claim 1 wherein said first spring is a sinusoidal spring.
Claim 6
Dependent Claim
16 words
A lumbar support device according to claim 1 wherein said first spring is a leaf spring.
Claim 7
Dependent Claim
24 words
A lumbar support device according to claim 1 wherein said first fulcrum of said first bracket is a hook limiting said lever from sliding.
Claim 8
Dependent Claim
24 words
A lumbar support device according to claim 1 wherein said first fulcrum of said first bracket is a loop preventing said lever from sliding.
Claim 9
Dependent Claim
17 words
A lumbar support device according to claim 1 wherein said first bracket further comprises a coil spring.
Claim 10
Dependent Claim
18 words
A lumbar support device according to claim 1 wherein said actuator assembly tractively moves said first distal end.
Claim 11
Dependent Claim
18 words
A lumbar support device according to claim 1 wherein said actuator assembly pulsively moves said first distal end.
Claim 12
Dependent Claim
64 words
A lumbar support device according to claim 1 wherein said second bracket further comprises a second fulcrum and said second end is rotatably connected to and cantilevered about said second bracket, said second end defining a second lever extending from said second fulcrum to a second distal end, and wherein said actuator assembly operatively connects said first distal end with said second distal end.
Claim 13
Dependent Claim
31 words
A lumbar support device according to claim 1 , further comprising a second spring and a pair of connectors, said pair of connectors attaching said first spring with said second spring.
Claim 14
Dependent Claim
19 words
A lumbar support device according to claim 1 wherein said center section is further comprised of a recessed portion.
Claim 15
Dependent Claim
158 words
A lumbar support device, comprising: a first bracket having a first fulcrum; a second bracket located distally from said first bracket; a spring assembly having a first cantilevered end, a second end, and a center section fixedly attached to said first cantilevered end and said second end, said first cantilevered end rotatably connected to and cantilevered about said first bracket, said second end connected to said second bracket, and said center section extending between said first cantilevered end and said second end, wherein said first cantilevered end defines a first lever extending from said first fulcrum to a first distal end such that said first fulcrum is located between said first distal end and said center section; and an actuator assembly operatively connected to said first distal end of said first lever, wherein said actuator assembly moves said first distal end and said first fulcrum stops is first lever from sliding and forces said first lever to rotate.
Claim 16
Dependent Claim
158 words
A lumbar support device, comprising: a first bracket having a first fulcrum; a second bracket located distally from said first bracket; a spring assembly having a first cantilevered end, a second end, and a center section fixedly attached to said first cantilevered end and said second end, said first cantilevered end rotatably connected to and cantilevered about said first bracket, said second end connected to said second bracket, and said center section extending between said first cantilevered end and said second end, wherein said first cantilevered end defines a first lever extending from said first fulcrum to a first distal end such that said first fulcrum is located between said first distal end and said center section; and an actuator assembly operatively connected to said first distal end of said first lever, wherein said actuator assembly moves said first distal end and said first fulcrum stops is first lever from sliding and forces said first lever to rotate.
Claim 17
Dependent Claim
33 words
A lumbar support device according to claim 14 , further comprising a seat frame having a first side for attaching said first bracket and a second side for attaching said se nd bracket.
Claim 18
Dependent Claim
19 words
A lumbar support device according to claim 14 , wherein said actuator assemble pulsively moves said first distal end.
Claim 19
Dependent Claim
69 words
A lumbar support device according to claim 14 wherein said second bracket further comprises a second fulcrum and said second end is rotatably connected to and cantilevered about said second bracket, said second end defining a second lever having a second lever arm extending from said second fulcrum to a second distal end, and wherein said actuator assembly operatively connects said first distal end with said second distal end.
Claim 20
Dependent Claim
20 words
A lumbar support device according to claim 14 , wherein said center section is further comprised of a recessed portion.
Claim 21
Dependent Claim
225 words
A lumbar support device, comprising: first bracket having a first fulcrum; a second bracket having a second fulcrum, said second bracket located distally from said first bracket; a spring assembly having a first cantilevered end, a second cantilevered end, and a center section integrally formed with said first cantilevered end and said second cantilevered end, said first cantilevered end rotatably connected to and cantilevered about said first bracket, said second cantilevered end rotatably connected to and cantilevered about said second bracket, and said center section extending between said first bracket and said second bracket, wherein said first cantilevered end defines a first lever extending from said first fulcrum to a first distal end such that said first fulcrum is located between said first distal end and said center section and wherein said second cantilevered end defines a second lever extending from said second fulcrum to a second distal end such that said second fulcrum is located between said second distal end and said center section; and an actuator assembly operatively connecting said first distal end with said second distal end, wherein said actuator assembly moves said first distal end and said second distal end and said first fulcrum and said second fulcrum respectively stop said first lever and said second lever from sliding and respectively force said first lever and said second lever to rotate.
Claim 22
Dependent Claim
225 words
A lumbar support device, comprising: first bracket having a first fulcrum; a second bracket having a second fulcrum, said second bracket located distally from said first bracket; a spring assembly having a first cantilevered end, a second cantilevered end, and a center section integrally formed with said first cantilevered end and said second cantilevered end, said first cantilevered end rotatably connected to and cantilevered about said first bracket, said second cantilevered end rotatably connected to and cantilevered about said second bracket, and said center section extending between said first bracket and said second bracket, wherein said first cantilevered end defines a first lever extending from said first fulcrum to a first distal end such that said first fulcrum is located between said first distal end and said center section and wherein said second cantilevered end defines a second lever extending from said second fulcrum to a second distal end such that said second fulcrum is located between said second distal end and said center section; and an actuator assembly operatively connecting said first distal end with said second distal end, wherein said actuator assembly moves said first distal end and said second distal end and said first fulcrum and said second fulcrum respectively stop said first lever and said second lever from sliding and respectively force said first lever and said second lever to rotate.
Claim 23
Dependent Claim
23 words
A lumbar support device according to claim 19 wherein said center section of said spring assembly is further comprised of a recessed portion.
Claim 24
Dependent Claim
45 words
A lumbar support device according to claim 19 wherein said actuator assembly further comprises a bowden cable assembly and an actuator, said actuator operatively engaging said bowden cable assembly and said bowden cable assembly tractively linking said first distal end with said second distal end.
Claim 25
Dependent Claim
32 words
A lumbar support device according to claim 19 , further comprising a seat frame having a first side for attaching said first bracket and a second side for attaching said second bracket.
Claim 26
Dependent Claim
56 words
A lumbar support device according to claim 19 wherein said spring assembly is further comprised of a sinusoidal spring having a first loop, a last loop and a plurality of loops, said first loop defining said first cantilevered end, said last loop defining said second cantilevered end, and said plurality of loops defining said center section.
Claim 27
Dependent Claim
45 words
A lumbar support device according to claim 19 wherein said plurality of loops is further comprised of a second loop and a second-to-last loop, said second loop being integrally formed with said first loop and said second-to-last loop being integrally formed with said last loop.
References Cited (Backward Citations)
US1182854A
Cited
US2614615A
Cited
US2835312A
Cited
US2936824A
Cited
US3095188A
Cited
US3241879A
Cited
US3378299A
Cited
US4019777A
Cited
US4162807A
Cited
GB2013487A
Cited
US4296965A
Cited
US4627661A
Cited
US4588172A
Cited
US4565406A
Cited
US4715653A
Cited
US5022709A
Cited
US5335965A
Cited
US5468048A
Cited
US5823620A
Cited
US5954399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-06-10 | 2005-12-10 | 2006-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-10 | 2009-12-10 | 2010-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-10 | 2013-12-10 | 2014-06-11 | $7700.00 | Window Closed / Lapsed |