Hand held actuator for a patient call system

Details Hand held actuator for a patient call system Hand held actuator for a patient call system

H - Electricity

01

H

H01H 3/24 (2006.01)

Patent

CA 2123954

A hand held actuator comprises a truncated conical housing wherein the volume of air is pressurized by flexure of a diaphragm. A rib protruding from an outer peripheral margin of the diaphragm is received in a groove of a support plate. Unwanted flexure of the peripheral margin is prevented by supporting the edges supporting the edges of the diaphragm and the plate is spaced apart grooves formed in the interior wall of the housing. The volume of air pressurized by the operation of the diaphragm is communicated by a duct to a signal switch. In one embodiment the duct is connected in a fluid type manner to the interior of the housing by the tapered sleeve. In another embodiment, the duct is joined to a tube forming an extension in an opening in the support plate forming a diaphragm.

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