US5409249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicycle rear suspension system
Assignee: SCHWIN ACQUISITION LLC
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Filing: 1993-09-15
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Granted: 1995-04-25
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Expires: 2013-09-15
Abstract
Abstract A bicycle rear suspension linkage system comprising a bicycle frame having an upper link pivotally connected thereto. Also pivotally connected to the bicycle frame are the front ends of a pair of chain stay members, while pivotally connected to the upper link are the upper ends of a pair of seat stay members. The lower ends of the seat stay members are also pivotally connected to the back ends of the chain stay members. The rear suspension linkage system further comprises a shock absorber having a body portion and a reciprocally movable piston rod extending axially from the body portion. The piston rod defines a distal end which is pivotally connected to the seat stay members, with the body portion being pivotally connected to the upper link.
Inventors
- 👤 James S. Busby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:05
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/04; B62K25/28; B62K25/30; B60; B60G; B60G2202/00; B60G2202/10; B60G2202/14; B60G2202/143; B60G2204/00; B60G2204/10; B60G2204/12; B60G2204/125; B60G2204/40; B60G2204/45; B60G2204/4504; B60G2300/00; B60G2300/12
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
162 words
A bicycle rear suspension linkage system, comprising: a bicycle frame; an upper link having front and back ends and a central portion, the front end of said upper link being pivotally connected to said bicycle frame; a pair of seat stay members having upper and lower ends, the upper ends of said seat stay members being pivotally connected to the back end of said upper link; a pair of chain stay members having front and back ends, the front ends of said chain stay members being pivotally connected to said bicycle frame and the back ends of said chain stay members being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to the central portion of said upper link.
Claim 2
Dependent Claim
162 words
A bicycle rear suspension linkage system, comprising: a bicycle frame; an upper link having front and back ends and a central portion, the front end of said upper link being pivotally connected to said bicycle frame; a pair of seat stay members having upper and lower ends, the upper ends of said seat stay members being pivotally connected to the back end of said upper link; a pair of chain stay members having front and back ends, the front ends of said chain stay members being pivotally connected to said bicycle frame and the back ends of said chain stay members being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to the central portion of said upper link.
Claim 3
Dependent Claim
34 words
The linkage system of claim 1 wherein said shock absorber further comprises a spring member extending between said body portion and said seat stay members, said piston rod extending axially through said spring member.
Claim 4
Dependent Claim
51 words
The linkage system of claim 1 wherein said bicycle frame comprises: a head tube disposed at the front of the bicycle frame; a seat tube disposed at the rear of the bicycle frame; and an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube.
Claim 5
Dependent Claim
21 words
The linkage system of claim 3 wherein the front end of said upper link is pivotally connected to said top tube.
Claim 6
Dependent Claim
21 words
The linkage system of claim 3 wherein the front end of said upper link is pivotally connected to said seat tube.
Claim 7
Dependent Claim
35 words
The linkage system of claim 3 wherein said bicycle frame further comprises a link mount rigidly attached to said top tube, the front end of said upper link being pivotally connected to said link mount.
Claim 8
Dependent Claim
35 words
The linkage system of claim 3 wherein said bicycle frame further comprises a link mount rigidly attached to said seat tube, the front end of said upper link being pivotally connected to said link mount.
Claim 9
Dependent Claim
39 words
The linkage system of claim 3 wherein said bicycle frame further comprises a link mount rigidly attached to said seat tube and said top tube, the front end of said upper link being pivotally connected to said link mount.
Claim 10
Dependent Claim
22 words
The linkage system of claim 3 wherein the front ends of said chain stay members are pivotally connected to said seat tube.
Claim 11
Dependent Claim
40 words
The linkage system of claim 3 wherein said bicycle frame further comprises a chain stay pivot mount rigidly attached to said seat tube, the front ends of said chain stay members being pivotally connected to said chain stay pivot mount.
Claim 12
Dependent Claim
36 words
The linkage system of claim 3 wherein the front ends of said chain stay members are rigidly attached to a chain stay end housing, said chain stay end housing being pivotally connected to said seat tube.
Claim 13
Dependent Claim
37 words
The linkage system of claim 11 wherein said bicycle frame further comprises a chain stay pivot mount rigidly attached to said seat tube, said chain stay end housing being pivotally connected to said chain stay pivot mount.
Claim 14
Dependent Claim
36 words
The linkage system of claim 1 wherein the front ends of said chain stay members are rigidly attached to a chain stay end housing, said chain stay end housing being pivotally connected to said bicycle frame.
Claim 15
Dependent Claim
40 words
The linkage system of claim 1 wherein the upper ends of said seat stay members are rigidly attached to a seat stay end housing, said seat stay end housing being pivotally connected to the back end of said upper link.
Claim 16
Dependent Claim
151 words
A bicycle rear suspension linkage system, comprising: a bicycle frame including a head tube, a seat tube and an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube; an upper link pivotally connected to the top tube of said bicycle frame; a pair of seat stay members having upper and lower ends, said upper ends being pivotally connected to said upper link; a pair of chain stay members having front and back ends, said front ends being pivotally connected to said bicycle frame and said back ends being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to said upper link.
Claim 17
Dependent Claim
151 words
A bicycle rear suspension linkage system, comprising: a bicycle frame including a head tube, a seat tube and an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube; an upper link pivotally connected to the top tube of said bicycle frame; a pair of seat stay members having upper and lower ends, said upper ends being pivotally connected to said upper link; a pair of chain stay members having front and back ends, said front ends being pivotally connected to said bicycle frame and said back ends being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to said upper link.
Claim 18
Dependent Claim
156 words
A bicycle rear suspension linkage system, comprising: a bicycle frame including a head tube, a seat tube, an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube, and a link mount rigidly attached to said top tube; an upper link pivotally connected to said link mount; a pair of seat stay members having upper and lower ends, said upper ends being pivotally connected to said upper link; a pair of chain stay members having front and back ends, said front ends being pivotally connected to said bicycle frame and said back ends being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to said upper link.
Claim 19
Dependent Claim
156 words
A bicycle rear suspension linkage system, comprising: a bicycle frame including a head tube, a seat tube, an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube, and a link mount rigidly attached to said top tube; an upper link pivotally connected to said link mount; a pair of seat stay members having upper and lower ends, said upper ends being pivotally connected to said upper link; a pair of chain stay members having front and back ends, said front ends being pivotally connected to said bicycle frame and said back ends being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to said upper link.
Claim 20
Dependent Claim
160 words
A bicycle rear suspension linkage system, comprising: a bicycle frame including a head tube, a seat tube, an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube, and a link mount rigidly attached to said seat tube and said top tube; an upper link pivotally connected to said link mount; a pair of seat stay members having upper and lower ends, said upper ends being pivotally connected to said upper link; a pair of chain stay members having front and back ends, said front ends being pivotally connected to said bicycle frame and said back ends being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to said upper link.
Claim 21
Dependent Claim
160 words
A bicycle rear suspension linkage system, comprising: a bicycle frame including a head tube, a seat tube, an elongate top tube having opposed ends rigidly attached to said head tube and said seat tube, and a link mount rigidly attached to said seat tube and said top tube; an upper link pivotally connected to said link mount; a pair of seat stay members having upper and lower ends, said upper ends being pivotally connected to said upper link; a pair of chain stay members having front and back ends, said front ends being pivotally connected to said bicycle frame and said back ends being pivotally connected to the lower ends of said seat stay members; and a shock absorber having a body portion and a reciprocally movable piston rod extending axially from said body portion, said piston rod defining a distal end pivotally connected to said seat stay members and said body portion being pivotally connected to said upper link.
References Cited (Backward Citations)
US439095A
Cited
US578615A
Cited
US606323A
Cited
US657667A
Cited
US944795A
Cited
US1047430A
Cited
US1412012A
Cited
US1257761A
Cited
GB191515332A
Cited
US1298958A
Cited
GB220760A
Cited
US1594079A
Cited
US3917313A
Cited
US4322088A
Cited
DE3033294A1
Cited
US4506755A
Cited
US4529056A
Cited
US4673053A
Cited
US4951791A
Cited
US4789174A
Cited
US4997197A
Cited
US5098114A
Cited
US5121937A
Cited
US5205572A
Cited
US5244224A
Cited
US5335929A
Cited
US5259637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-04-24 | 1998-10-24 | 1999-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-24 | 2002-10-24 | 2003-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-24 | 2006-10-24 | 2007-04-25 | $7700.00 | Window Closed / Lapsed |