Battery operated hydraulic compression tool with rapid ram advance
US6446482B1 · kind B1 · utility
71Cited by
29References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2001 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B27/146
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A battery operated hydraulic compression tool comprising a frame; a hydraulic fluid reservoir connected to the frame; an electric motor driven hydraulic pump connected to the hydraulic fluid reservoir; a ram movably connected to the frame; and a multi-speed ram advancement system for advancing the ram in at least two different rates of movement on the frame. The advancement system includes a rapid advance actuator located directly against the ram, and a hydraulic bypass system located between the pump and the ram for conduiting hydraulic fluid past the rapid advance actuator to the area of the frame holding the ram.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.