US3304100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic apparatus for locking a side shiftable excavator
Assignee: Case LLC
•
Filing: 1965-04-22
•
Granted: 1967-02-14
•
Expires: 1985-04-22
Abstract
No abstract record available.
Inventors
- 👤 Elton B Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:46
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/36; E02F3/38; E02F3/382; E02F3/386
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN AN EXCAVATING DEVICE HAVING A SIDE SHIFTABLE FRAME SLIDABLY CARRIED BY USE OF SLIDE RAIL GUIDES ALONG AT LEAST UPPER AND LOWER SLIDE RAILS OF A STATIONARY FRAME, THE IMPROVEMENT COMPRISING MEANS FOR HYDRAULICALLY LOCKING THE SIDE SHIFTABLE FRAME IN ANY ONE OF AN INFINITE NUMBER OF POSITIONS ALONG THE STATIONARY FRAME INCLUDING AT LEAST ONE HYDRAULIC CYLINDER HAVING A RAM AT THE DISTAL END OF THE PISTON ACCOMMODATING SURFACE-TO-SURFACE PRESSURIZED ENGAGEMENT BETWEEN THE RAM AND STATIONARY FRAME SO THAT THE SIDE SHIFTABLE FRAME MAY BE RAPIDLY RELOCATED WITH RESPECT TO THE STATIONARY FRAME IN ANY DESIRED POSITION MERELY BY HYDRAULIC ACTUATION WITHOUT REQUIRING THE OPERATOR OF THE EXCAVATING DEVICE TO LEAVE HIS SEAT AND DISMOUNT THE EXCAVATING DEVICE.
Claim 2
Dependent Claim
120 words
IN AN EXCAVATING DEVICE HAVING A SIDE SHIFTABLE FRAME SLIDABLY CARRIED BY USE OF SLIDE RAIL GUIDES ALONG AT LEAST UPPER AND LOWER SLIDE RAILS OF A STATIONARY FRAME, THE IMPROVEMENT COMPRISING MEANS FOR HYDRAULICALLY LOCKING THE SIDE SHIFTABLE FRAME IN ANY ONE OF AN INFINITE NUMBER OF POSITIONS ALONG THE STATIONARY FRAME INCLUDING AT LEAST ONE HYDRAULIC CYLINDER HAVING A RAM AT THE DISTAL END OF THE PISTON ACCOMMODATING SURFACE-TO-SURFACE PRESSURIZED ENGAGEMENT BETWEEN THE RAM AND STATIONARY FRAME SO THAT THE SIDE SHIFTABLE FRAME MAY BE RAPIDLY RELOCATED WITH RESPECT TO THE STATIONARY FRAME IN ANY DESIRED POSITION MERELY BY HYDRAULIC ACTUATION WITHOUT REQUIRING THE OPERATOR OF THE EXCAVATING DEVICE TO LEAVE HIS SEAT AND DISMOUNT THE EXCAVATING DEVICE.
References Cited (Backward Citations)
US3155250A
Cited
US3036845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |