Patent US3606957A successfully refreshed from Google Patents.
US3606957A
Expired / Lapsed
US
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Remote control system for load manipulating vehicles
Assignee: Caterpillar Inc
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Filing: 1969-05-07
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Granted: 1971-09-21
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Expires: 1989-05-07
Abstract
Abstract A CRAWLER LOADER VEHICLE HAS REMOTE CONTROL MEANS CAPABLE OF EFFECTING INTERMEDIATE SETTINGS OF THE OPERATOR''S CONTROL LINKAGES AS WELL AS EXTREME POSITIONS AND PROVIDES FOR REMOTELY INITIATING MOVEMENT OF THE LIFT ARMS AND BUCKET WITH AUTOMATIC STOPPING AT THE INTERMEDIATE POSITION IF DESIRED. HYDRAULIC JACKS, ACTUATABLE THROUGH RADIO CONTROLLED SOLENOID VALVES, ARE SUBSTITUTED FOR EXISTING LINKS IN CONTROL LEVER LINKAGES. THE JACKS PERFORM AS A CONVENTIONAL RIGID LINK WHEN THE OPERATOR IS SITUATED ON THE VEHICLE AND PROVIDE FOR THE REMOTE CONTROL IF THE OPERATOR''S CONTROL LEVERS ARE LOCKED IN FIXED POSITION.
Inventors
- 👤 Joe E Fuzzell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:30
CPC Classifications
E; E02; E02F; E02F9/00; E02F9/20; E02F9/22; E02F9/2278; E02F9/2285; E02F9/2004; E02F9/2025; E02F9/205
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |