Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent
1995-09-21
1997-09-23
Gellner, Michael L.
Electricity: circuit makers and breakers
Fluid pressure
Diaphragm
H01H 3538
Patent
active
056707665
ABSTRACT:
A pressure actuated switch has a diaphragm mounted across a piston having a piston head. Movement of the piston under pressure variations acting on the diaphragm actuates the pressure switch. A support disc is provided for the diaphragm, the support disc being mounted between the diaphragm and the piston. The support disc is preferably made of a high tensile elastic material and has an outer annulus that extends beyond the piston head, an inner disc that is smaller in diameter than the piston head; and a flexible intermediate annulus cantilevered between the outer annulus and the inner disc.
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Camrose Electric Controls Ltd., Edmonton, Alberta, Canada, Parts RS73 Pressure Controls, 1 page, 1993.
Barber Industries Ltd., Edmonton, Alberta, Canada, Instructions for Installing and Operating High-Temp Presco-Switches, Type DHTE, Jan. 1992, 1 page.
Argus Machine Co. Ltd.
Friedhofer Michael A.
Gellner Michael L.
Lambert Anthony R.
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