Jack assembly
Abstract
Abstract A JACK ASSEMBLY COMPRISING A PLATFORM, A JACK STANDARD RIGIDLY CONNECTED TO THE PLATFORM AND EXTENDING VERTICALLY UPWARDLY THEREFROM, A LEVER-ACTUABLE LIFT FRAME ARRANGED FOR VERTICAL RECIPROCATION ON THE STANDARD, AND WHEEL MEANS FOR MOVABLY SUPPORTING THE PLATFORM. THE WHEEL MEANS ARE PREFERABLY ARRANGED YIELDINGLY TO SUPPORT THE BOTTOM OF THE PLATFORM SLIGHTLY ABOVE AND OUT OF CONTACT WITH THE SURFACE ON WHICH THE ASSEMBLY IS SUPPORTED. A FLEXIBLE LIFTING STRAP PROVIDING A PAIR OF SPACED APART HOOK-TYPE FINGERS FOR ENGAGING WORK IS PROVIDED FOR CONNECTION WITH THE LIFTING FRAME. A RIGID SLEEVE IS DISPOSED TELESCOPICALLY OVER THE UPPER END OF THE STANDARD TO REST DIRECTLY ON AN UPWARDLY AND HORIZONTALLY EXTENDING SURFACE PROVIDED BY THE LIFT FRAME, WHICH SURFACE EXTENDS ABOUT THE STANDARD.
Inventors
- 👤 Chester P Harrah
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 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 |