Pressure controlled activating switch for a hand held tool
US5528008A · kind A · utility
Inventor
Key dates
| Filing date | Aug 2, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Aug 2, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A pressure controlled activating switch for a hand held tool comprises an elongated flexible barrel having an axial support member carried within the barrel and protruding from one end thereof. A plurality of gliding elements surround the axial support member and are mounted in the barrel for axial movement with respect to the barrel axis. A plurality of inserting elements are carried between the gliding elements and are moveable radially in the barrel. A connecting element is provided axially moveable within the barrel and is operatively disposed to activate a switch element. A spring or magnet maintains the gliding elements in a resting position and positioned with respect to the connecting element so that radial movement inwardly of the flexible barrel causes radial movement of the inserting elements which in turn causes axial movement of the gliding elements and connecting element to activate the switch element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.