Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent
1992-01-06
1993-03-09
Scott, J. R.
Electricity: circuit makers and breakers
Fluid pressure
Diaphragm
200 83WM, 200 83SA, H01H 3526
Patent
active
051928400
ABSTRACT:
A pressure operated switch construction, parts therefor and methods of making the same are provided, the pressure operated switch construction comprising a housing having an external surface and carrying an electrical switch unit and a diaphragm assembly therein, and a compression spring unit carried by the housing and being interconnected to the switch unit and the diaphragm assembly to control the operation thereof in relation to the compressive setting of the spring unit, the housing having a bracket member extending outwardly from the external surface thereof in a flangelike manner and having first structure for mounting a first movable actuator unit to the housing that is to be interconnected to the spring unit to select the desired compressive setting thereof, the switch construction comprising a bracket interconnected to a second structure of the bracket member, and a second movable actuator carried by the bracket and being interconnected to the spring unit to select the desired compressive setting thereof whereby the bracket is only used when the housing is to carry the second movable actuator unit and the bracket member is not to mount the first movable actuator unit to the housing.
REFERENCES:
patent: 3249712 (1966-05-01), Rhodes et al.
patent: 4081637 (1978-03-01), Stearley et al.
patent: 4150268 (1979-04-01), Stearley et al.
patent: 4262178 (1981-04-01), Berlin, Jr.
patent: 4617432 (1986-10-01), Hanssen et al.
patent: 4696204 (1987-09-01), Buckshaw et al.
patent: 4800633 (1989-01-01), Buckshaw et al.
Robertshaw Controls Company
Scott J. R.
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