Patent US4564081A successfully refreshed from Google Patents.
US4564081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motorcycle cooling system
Assignee: Honda Motor Co Ltd
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Filing: 1983-09-09
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Granted: 1986-01-14
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Expires: 2003-09-09
Abstract
Abstract Motorcycles of the type having front leg shields, step floors and rear mounted engines have water-cooled engines with radiators mounted at the front leg shield. Tubes connecting the radiator with the water-cooled engine extend below the step floor. In certain of the embodiments, a trunk is illustrated within which the filler cap and the radiator tank are positioned for easy access. The trunk may be mounted above and spaced from the front fender to define a passage for frontal air to be directed to the front mounted radiator.
Inventors
- 👤 Masumi Hamane
- 👤 Takanori Onda
- 👤 Masayoshi Baba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:18
CPC Classifications
B; B62; B62J; B62J17/00; B62J17/02; B62J17/10; B62J41/00; B62J7/00; B62K; B62K19/00; B62K19/48; F; F01; F01P; F01P11/00; F01P11/10; F02; F02B; F02B61/00; F02B61/02; B62K2202/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
57 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a trunk mounted in front of the front leg shield; a fender below said trunk; a passage between said trunk and said fender; a radiator mounted in said passage; and tubes extending from said radiator to the engine.
Claim 2
Dependent Claim
57 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a trunk mounted in front of the front leg shield; a fender below said trunk; a passage between said trunk and said fender; a radiator mounted in said passage; and tubes extending from said radiator to the engine.
Claim 3
Dependent Claim
21 words
The motorcycle of claim 1 further comprising a filler cap on said radiator, said filler cap being located in said trunk.
Claim 4
Dependent Claim
60 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a radiator mounted at the front leg shield; tubes extending from said radiator, below the step floor and to the engine; side channels supporting the step floor, said tubes being positioned to extend beneath the step floor in said side channels.
Claim 5
Dependent Claim
60 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a radiator mounted at the front leg shield; tubes extending from said radiator, below the step floor and to the engine; side channels supporting the step floor, said tubes being positioned to extend beneath the step floor in said side channels.
Claim 6
Dependent Claim
62 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a radiator mounted at the front leg shield; tubes extending from said radiator, below the step floor and to the engine; a downtube extending rearwardly beneath the step floor, at least one of said tubes extending beneath the step floor in said downtube.
Claim 7
Dependent Claim
62 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a radiator mounted at the front leg shield; tubes extending from said radiator, below the step floor and to the engine; a downtube extending rearwardly beneath the step floor, at least one of said tubes extending beneath the step floor in said downtube.
Claim 8
Dependent Claim
23 words
The motorcycle of claim 4 wherein there are two said tubes, both said tubes extending beneath the step floor in said down tube.
Claim 9
Dependent Claim
17 words
The motorcycle of claim 5 further comprising a heat insulator between said tubes and the down tube.
Claim 10
Dependent Claim
28 words
The motorcycle of claim 4 wherein said down tube includes parallel elements, one of said tubes extending beneath the step floor in each of the down tube elements.
Claim 11
Dependent Claim
67 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a radiator mounted at the front leg shield; tubes extending from said radiator, below the step floor and to the engine; a downtube extending downwardly from the front leg shield and rearwardly beneath the step floor, said radiator being mounted to said downtube at the front leg shield.
Claim 12
Dependent Claim
67 words
A motorcycle having a front leg shield, a step floor and an engine mounted behind the step floor, comprising a radiator mounted at the front leg shield; tubes extending from said radiator, below the step floor and to the engine; a downtube extending downwardly from the front leg shield and rearwardly beneath the step floor, said radiator being mounted to said downtube at the front leg shield.
References Cited (Backward Citations)
GB141194A
Cited
FR1077820A
Cited
GB1513134A
Cited
GB1537233A
Cited
US4171729A
Cited
EP0021657A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |