US4402238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential case
Assignee: MOTOR SPECIALTIES Inc A CORP OF PA
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Filing: 1980-06-27
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Granted: 1983-09-06
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Expires: 2000-06-27
Abstract
Abstract A differential case has a spider assembly within the case. The spider assembly has a plurality of shafts with each carrying a pinion. The end of each shaft is aligned with a port in the periphery of the case. A rigid retaining band is mounted to the case, and it surrounds the case and covers each of the ports. The band prevents a shaft in the spider assembly from leaving the case whenever the shaft breaks from the assembly.
Inventors
- 👤 Robert D. Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:28
CPC Classifications
F; F16; F16H; F16H48/00; F16H48/06; F16H48/08; F16H48/38; F16H48/42; F16H2048/423; F16H2048/426; F16H48/40; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2186; Y10T74/2188
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A differential case having at least one port in the periphery of the case and an assembly within the case which has at least one shaft carrying at least one pinion and the shaft having an outer end aligned with the port, the improvement comprising a rigid retaining band surrounding the case and covering the port, the band having a plurality of bolt lugs along one edge of the band and extending radially inwardly to receive a bolt which passes through each bolt lug and joins the band to the case so as to maintain the band in a fixed relationship with respect to the case thereby preventing the shaft from being ejected from the case when the shaft breaks.
Claim 2
Dependent Claim
120 words
A differential case having at least one port in the periphery of the case and an assembly within the case which has at least one shaft carrying at least one pinion and the shaft having an outer end aligned with the port, the improvement comprising a rigid retaining band surrounding the case and covering the port, the band having a plurality of bolt lugs along one edge of the band and extending radially inwardly to receive a bolt which passes through each bolt lug and joins the band to the case so as to maintain the band in a fixed relationship with respect to the case thereby preventing the shaft from being ejected from the case when the shaft breaks.
References Cited (Backward Citations)
US2818129A
Cited
NL7308398A
Cited
US3874251A
Cited
US4037492A
Cited
US3955443A
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US4183263A
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FR2382627A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |