US3606052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loader attachment quick coupler device
Assignee: AL Manufacturing CO DU
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Filing: 1969-07-03
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Granted: 1971-09-20
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Expires: 1989-07-03
Abstract
Abstract A QUICK-CONNECT-DISCONNECT COUPLER FOR ATTACHING LOADING IMPLEMENTS TO THE FORWARD END OF A LIFTING AND DUMPING TYPE BOOM ASSEMBLY. COUPLING IS ACCOMPLISHED BY MANIPULATION OF THE HYDRAULIC RAMPS OF THE LOADED AND INCLUDES AUTOMATIC LATCHING OF THE IMPLEMENT AND BOOM ASSEMBLY. THE LATCH MECHANISM MAY BE LOCKED BY INSERTION OF A LOCKING PIN. UPON RELEASE OF THE LATCHING MECH- ANISM, THE IMPLEMENT MAY BE UNCOUPLED BY REVERSE OPERATION OF THE HYDRAULIC RAMS.
Inventors
- 👤 James L Schurz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:00
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/3604; E02F3/3609; E02F3/3622; E02F3/3645
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |