Pumping ratchet winch
US4045001A · kind A · utility
18Cited by
11References
21Claims
0Family size
Inventor
Key dates
| Filing date | Jul 10, 1975 |
| Grant date | Aug 30, 1977 |
| Priority date | — |
| Expiry date | Jul 10, 1995 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D3/00
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The handle arm of a ratchet winch is convertibly connectible to the ratchet drive lever either to provide a stiff arm swingable conjointly with the ratchet drive lever relative to the winch frame for high-speed operation of the winch, or to provide a pumping arm rockable relative to the ratchet drive lever and engageable with the frame to pry the ratchet drive lever and swing it incrementally relative to the winch frame for high-power operation of the winch. The winch can be anchored by a tie bridging across the winch frame. Wire rope is led onto the winch drum by a traveling fairlead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.