Pressure controlled activating switch for a hand held tool

Details Pressure controlled activating switch for a hand held tool Pressure controlled activating switch for a hand held tool

1994-08-02

1996-06-18

Scott, J. R.

Electricity: circuit makers and breakers

Special application

178 18, 345179, H01H 906, H01H 302, G08C 2100

Patent

active

055280080

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.

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patent: 3746814 (1973-07-01), Lackey et al.
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patent: 5004871 (1991-04-01), Purcell
patent: 5109141 (1992-04-01), Purcell
patent: 5410334 (1995-04-01), Comerford

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