Patent US4523660A successfully refreshed from Google Patents.
US4523660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bearing body for motorcycle
Assignee: Piaggio and C SpA
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Filing: 1982-12-03
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Granted: 1985-06-18
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Expires: 2002-12-03
Abstract
Abstract A bearing body for motorcycles with rear drive wheel borne in cantilever fashion by an oscillating arm fulcrummed to said body and bearing also the engine/transmission assembly with related exhaust pipe silencer, comprising in its lower part anterior to the fulcrum of said oscillating arm a cavity for free partial housing of said silencer.
Inventors
- 👤 Bruno Gaddi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:30
CPC Classifications
B; B62; B62K; B62K25/00; B62K25/005; B62K11/00; B62K11/02; B62K11/10
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
159 words
In a motorcycle: a support body having a longitudinal median plane; an oscillating arm fulcrummed to said body for pivoting movement about an axis transverse to said longitudinal median plane, said arm extending rearwardly of said pivot axis; an engine/transmission assembly carried by said arm at a location rearwardly of said pivot axis and laterally of said longitudinal median plane; a rear wheel drivingly connected to said engine/transmission assembly and located generally in said longitudinal median plane; an exhaust silencer carried by said engine/transmission assembly so as to oscillate therewith, said silencer being located generally in said longitudinal plane and forward of said rear wheel and at least partially forward of said pivot axis whereby the lateral space adjacent said rear wheel on the side thereof opposite said engine/transmission assembly is not encumbered by said silencer, said body having downwardly and inwardly facing walls forming a downwardly facing cavity in which said silencer at least partially resides and oscillates.
Claim 2
Dependent Claim
159 words
In a motorcycle: a support body having a longitudinal median plane; an oscillating arm fulcrummed to said body for pivoting movement about an axis transverse to said longitudinal median plane, said arm extending rearwardly of said pivot axis; an engine/transmission assembly carried by said arm at a location rearwardly of said pivot axis and laterally of said longitudinal median plane; a rear wheel drivingly connected to said engine/transmission assembly and located generally in said longitudinal median plane; an exhaust silencer carried by said engine/transmission assembly so as to oscillate therewith, said silencer being located generally in said longitudinal plane and forward of said rear wheel and at least partially forward of said pivot axis whereby the lateral space adjacent said rear wheel on the side thereof opposite said engine/transmission assembly is not encumbered by said silencer, said body having downwardly and inwardly facing walls forming a downwardly facing cavity in which said silencer at least partially resides and oscillates.
Claim 3
Dependent Claim
49 words
A motorcycle as in claim 1 wherein said support body includes two lateral cowls on opposite sides of said body, one of said cowls at least partially housing said engine/transmission assembly and the other cowl at least partially housing a spare wheel which is releasably secured to said body.
References Cited (Backward Citations)
BE542641A
Cited
FR1170051A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-17 | 1988-12-17 | 1989-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-17 | 1992-12-17 | 1993-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-17 | 1996-12-17 | 1997-06-18 | $7700.00 | Window Closed / Lapsed |