Electricity: circuit makers and breakers – Fluid pressure – Diaphragm
Patent
1990-02-14
1992-04-28
Scott, J. R.
Electricity: circuit makers and breakers
Fluid pressure
Diaphragm
200 83WM, 200835A, H01H 3524
Patent
active
051091445
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 flange-like 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: 3579284 (1971-05-01), Mason et al.
patent: 4081637 (1978-03-01), Stearley et al.
patent: 4115674 (1978-09-01), Budlane et al.
patent: 4150268 (1979-04-01), Stearley et al.
patent: 4206780 (1980-06-01), Manecke et al.
patent: 4617432 (1986-10-01), Hanssen et al.
patent: 4696204 (1987-09-01), Buckshaw et al.
Robertshaw Controls Company
Scott J. R.
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