US4927678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective bellows particularly for a motor vehicle front wheel drive
Assignee: Products Industriels de l'Ouest (C P I O) Cie
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Filing: 1988-12-01
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Granted: 1990-05-22
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Expires: 2008-12-01
Abstract
Abstract Disclosed is a protective bellows of polymer material of the thermoplastic, silicon, etc. type, particularly for a motor vehicle front wheel drive. It has a profile which includes a conical part (5) fastened to the bowl (3) of the transmission, extended on the opposite side by a cylindrical part (7) whose free end is fixed with the wheel side of the drive shaft (4).
Inventors
- 👤 Serge Lallement
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:40
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/04; F16J3/041; F16D; F16D3/00; F16D3/84; F16D3/843; F16D3/845; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/139
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
68 words
A protective bellows made of polymer material for a motor vehicle front wheel drive having a transmission with a bowl and a drive shaft, which comprises: a conical part to be fastened to said bowl of said transmission; and a cylindrical part having a substantially uniform diameter connected with said conical part wherein said cylindrical part includes a plurality of folds positioned along the length of said cylinder.
Claim 2
Dependent Claim
68 words
A protective bellows made of polymer material for a motor vehicle front wheel drive having a transmission with a bowl and a drive shaft, which comprises: a conical part to be fastened to said bowl of said transmission; and a cylindrical part having a substantially uniform diameter connected with said conical part wherein said cylindrical part includes a plurality of folds positioned along the length of said cylinder.
Claim 3
Dependent Claim
28 words
A protective bellows according to claim 1, wherein an inside diameter dimension of the cylindrical part does not exceed 4 mm greater than the diameter of the shaft.
Claim 4
Dependent Claim
21 words
A protective bellows according to claim 1, wherein an inside part of the cylinder has guide lugs for engaging said shaft.
Claim 5
Dependent Claim
29 words
A protective bellows according to claim 1, which comprises a junction between the conical part and the cylindrical part and which includes a fold which constitutes an articulated zone.
Claim 6
Dependent Claim
16 words
A protective bellows according to claim 1, wherein the conical part includes a circular protective boss.
Claim 7
Dependent Claim
21 words
A protective bellows according to claim 1, wherein the conical part includes a rib forming a protective member having local rigidity.
References Cited (Backward Citations)
US2761295A
Cited
FR1226861A
Cited
FR1474969A
Cited
FR2172580A5
Cited
US3817057A
Cited
US4083202A
Cited
DE2714983A1
Cited
FR2424438A1
Cited
DE2933695A1
Cited
GB2107412A
Cited
US4496334A
Cited
US4718680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |