Patent US4611702A successfully refreshed from Google Patents.
US4611702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clutch cover
Assignee: Aisin Corp
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Filing: 1984-08-20
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Granted: 1986-09-16
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Expires: 2004-08-20
Abstract
Abstract A clutch cover for use in a clutch assembly wherein a plurality of balance adjusting portions are provided at a periphery of a flange, and the balance adjusting portions are press-formed as bosses or connected to the main body of the clutch cover with deep grooves so that an imbalance of the clutch can be easily corrected or reduced on production line of clutch by removing certain balance adjusting portions.
Inventors
- 👤 Nobuhiro Kayakabe
- 👤 Isamu Sasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:11
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/32; F16D; F16D13/00; F16D13/58; F16D13/70; F16D13/71
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
71 words
A clutch cover to be secured to a flywheel of a vehicle engine and to be assembled with at least one pressure plate, comprising: a plurality of press-formed balance adjusting portions provided at a peripheral portion of the clutch cover, each of said balance adjusting portions being connected to a main body of said clutch cover via a thin walled neck portion having a thickness less than that of said cover.
Claim 2
Dependent Claim
71 words
A clutch cover to be secured to a flywheel of a vehicle engine and to be assembled with at least one pressure plate, comprising: a plurality of press-formed balance adjusting portions provided at a peripheral portion of the clutch cover, each of said balance adjusting portions being connected to a main body of said clutch cover via a thin walled neck portion having a thickness less than that of said cover.
Claim 3
Dependent Claim
31 words
A clutch cover according to claim 1, wherein said clutch cover has a flange portion and wherein said balance adjusting portions are formed in said flange portion of said clutch cover.
Claim 4
Dependent Claim
30 words
A clutch cover according to claim 2, wherein said flange has several portions in axial symmetry at certain intervals and said balance adjusting portions are provided at said flange portions.
Claim 5
Dependent Claim
26 words
A clutch cover according to claim 2, wherein at least some of said balance adjusting portions are arranged in the circumferential direction of said clutch cover.
Claim 6
Dependent Claim
22 words
A clutch cover according to claim 1, wherein the shape of at least one of said balance adjusting portions is a circle.
Claim 7
Dependent Claim
22 words
A clutch cover according to claim 1, wherein the shape of at least one of said balance adjusting portions is a square.
Claim 8
Dependent Claim
24 words
A clutch cover according to claim 1, wherein the shape of at least one of said balance adjusting portions is of a fan shape.
Claim 9
Dependent Claim
25 words
A clutch cover according to claim 1, wherein the shape of at least one of said balance adjusting portions is of a gable roof shape.
Claim 10
Dependent Claim
27 words
A clutch cover according to claim 8, wherein the top roof line of said gable roof shape is parallel to the circumferential direction of said clutch cover.
Claim 11
Dependent Claim
27 words
A clutch cover according to claim 8, wherein the top roof line of said gable roof shape is perpendicular to the circumferential direction of said clutch cover.
Claim 12
Dependent Claim
62 words
A clutch cover to be secured to a flywheel of a vehicle engine and to be assembled with at least one pressure plate, comprising: a plurality of balance adjusting portions provided at a peripheral portion of said clutch cover, each of said balance adjusting portions being connected to a main body of said clutch cover via a grooved thin walled neck portion.
Claim 13
Dependent Claim
62 words
A clutch cover to be secured to a flywheel of a vehicle engine and to be assembled with at least one pressure plate, comprising: a plurality of balance adjusting portions provided at a peripheral portion of said clutch cover, each of said balance adjusting portions being connected to a main body of said clutch cover via a grooved thin walled neck portion.
Claim 14
Dependent Claim
26 words
A clutch cover according to claim 11, wherein said balance adjusting portions are arranged in a line and are interconnected by said thin walled neck portion.
References Cited (Backward Citations)
US2328421A
Cited
US3838464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-15 | 1990-03-17 | 1990-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-15 | 1994-03-17 | 1994-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-15 | 1998-03-17 | 1998-09-16 | $7700.00 | Window Closed / Lapsed |