Patent US2512314A successfully refreshed from Google Patents.
US3296722A
Expired / Lapsed
US
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Automatic control system for construction vehicles
Assignee: GURRIES Manufacturing CO
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Filing: 1965-03-29
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Granted: 1967-01-10
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Curlett John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:40
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/841; E01; E01C; E01C19/00; E01C19/004; E01C19/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A CONTROL SYSTEM FOR A CONSTRUCTION VEHICLE HAVING A WORKING TOOL FRAME ADAPTED FOR VERTICAL ADJUSTMENT RELATIVE TO THE VEHICLE FRAME WHICH SYSTEM COMPRISES MEANS INCLUDING A PAIR OF EXTENSIBLE MEMBERS CONNECTED BETWEEN THE VEHICLE FRAME AND THE WORKING TOOL FRAME AT LATERALLY SPACED PORTIONS THEREOF FOR INDIVIDUALLY ADJUSTING THE RESPECTIVE SIDES OF THE WORKING TOOL FRAME, A FIRST SENSING MEANS OPERATIVE TO ENERGIZE SAID EXTENSIBLE MEMBERS SIMULTANEOUSLY IN THE SAME DIRECTION TO VARY THE ELEVATION OF THE WORKING TOOL FRAME, AND A SECOND SENSING MEANS OPERATIVE TO AUTOMATICALLY ENERGIZE SAID EXTENSIBLE MEMBERS SIMULTANEOUSLY IN OPPOSITE DIRECTIONS TO VARY THE CROSS-SLOPE OF THE WORKING TOOL FRAME.
Claim 2
Dependent Claim
106 words
A CONTROL SYSTEM FOR A CONSTRUCTION VEHICLE HAVING A WORKING TOOL FRAME ADAPTED FOR VERTICAL ADJUSTMENT RELATIVE TO THE VEHICLE FRAME WHICH SYSTEM COMPRISES MEANS INCLUDING A PAIR OF EXTENSIBLE MEMBERS CONNECTED BETWEEN THE VEHICLE FRAME AND THE WORKING TOOL FRAME AT LATERALLY SPACED PORTIONS THEREOF FOR INDIVIDUALLY ADJUSTING THE RESPECTIVE SIDES OF THE WORKING TOOL FRAME, A FIRST SENSING MEANS OPERATIVE TO ENERGIZE SAID EXTENSIBLE MEMBERS SIMULTANEOUSLY IN THE SAME DIRECTION TO VARY THE ELEVATION OF THE WORKING TOOL FRAME, AND A SECOND SENSING MEANS OPERATIVE TO AUTOMATICALLY ENERGIZE SAID EXTENSIBLE MEMBERS SIMULTANEOUSLY IN OPPOSITE DIRECTIONS TO VARY THE CROSS-SLOPE OF THE WORKING TOOL FRAME.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |