Boom assembly
Abstract
Abstract AN IMPROVED BOOM ASSEMBLY INCLUDES RELATIVELY MOVABLE INNER AND OUTER SECTIONS MOUNTED IN A TELESCOPIC RELATIONSHIP WITH EACH OTHER. A FIRST GROUP OF GUIDE ROLLERS IS MOUNTED ON THE OUTER END OF THE OUTER SECTION OF THE BOOM ASSEMBLY AND IS POSITIONED FOR ROLLING ENGAGEMENT WITH CORNER PORTIONS OF THE INNER SECTION OF THE BOOM ASSEMBLY. A SECOND GROUP OF GUIDE ROLLERS IS MOUNTED ON THE INNER END OF THE INNER SECTION OF THE BOOM ASSEMBLY AND IS POSITIONED FOR ROLLING ENGAGEMENT WITH CORNER PORTIONS OF THE OUTER SECTION OF THE BOOM ASSEMBLY. EACH ROLLER OF THESE GROUPS OF ROLLERS IS ADJUSTABLE BOTH AXIALLY AND RADIALLY RELATIVE TO THE SECTION OF THE BOOM ASSEMBLY WHICH IT ENGAGES. THIS ENABLES THE ROLLERS TO BE ADJUSTED TO ELIMINATE SIDE LOADING AND TO PROVIDE FOR PROPER TRACKING OR ROLLING OF THE ROLLERS ALONG THE CORNER PORTIONS OF THE ENGAGED SECTIONS. THE ROLLERS ARE ADVANTAGEOUSLY MOUNTED ON BRACKETS WHICH ARE CONSTRUCTED SO AS TO ENABLE THE ROLLERS TO BE READILY MOUNTED ON THE BOOM ASSEMBLY AND INTERCHANGED WITH EACH OTHER.
Inventors
- 👤 John W Gano
- 👤 Lester H Kline
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |