Fluid operated machine for prying and other purposes
US6000680A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1997 |
| Grant date | Dec 14, 1999 |
| Priority date | — |
| Expiry date | Aug 25, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23D29/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A portable, hydraulic prying machine is disclosed for use, for example, in prying open the doors of apartment buildings or of motor vehicles by rescue members in the event of an emergency. A motor and pump assembly, comprising an electric motor and a hydraulic pump driven thereby, is coupled to a pry assembly solely through the medium of a flexible conduit for delivery of a fluid under pressure from the pump to a hydraulic cylinder included in the pry assembly. The hydraulic cylinder on extension causes a pair of prying jaws to spread apart for forcing open the door. Being practically separate from the rest of the machine, the pry assembly is easier of handling. Additional embodiments are disclosed in which the pry assembly is replaced by other tool assemblies for other operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.