US3918601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Linkage restraining safety device
Assignee: International Motors LLC
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Filing: 1974-07-15
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Granted: 1975-11-11
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Expires: 1994-07-15
Abstract
Abstract A locking lever for securing the linkage of a loader vehicle in a predetermined position. The locking lever is pivotally secured to the vehicle whereby it can be swung out to a position where it keys with a bracket means, fixed to the linkage, when the linkage achieves a given orientation.
Inventors
- 👤 Richard F Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:59
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3405; E02F3/3411; E02F3/36; E02F3/38; E02F3/388
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
92 words
In combination, a vehicle, an implement, a boom, an implement linkage arrangement movably securing said implement to said boom, a hydraulic cylinder for actuating said implement through said linkage, a bracket attached to said linkage in the force transmission path from said cylinder to said implement, at least one linkage locking means including a lever having first and second abutting ends, said first abutting end being Pivotally secured to said vehicle and said second end being swingable to abuttingly engage said bracket means when said linkage is orientated in a given position.
Claim 2
Dependent Claim
92 words
In combination, a vehicle, an implement, a boom, an implement linkage arrangement movably securing said implement to said boom, a hydraulic cylinder for actuating said implement through said linkage, a bracket attached to said linkage in the force transmission path from said cylinder to said implement, at least one linkage locking means including a lever having first and second abutting ends, said first abutting end being Pivotally secured to said vehicle and said second end being swingable to abuttingly engage said bracket means when said linkage is orientated in a given position.
Claim 3
Dependent Claim
34 words
The linkage locking means of claim 1 wherein said first end includes a toe for limiting pivotal motion thereof and said second end includes a guide means for facilitating engagement with said bracket means.
Claim 4
Dependent Claim
16 words
The combination of claim 2 wherein said bracket is a channel having a downwardly extending opening.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |