Electricity: circuit makers and breakers – Special application – Container contents level responsive
Patent
1976-02-11
1977-06-21
Scott, James R.
Electricity: circuit makers and breakers
Special application
Container contents level responsive
H01H 3500
Patent
active
040313425
ABSTRACT:
A material sensing switch comprising a hollow body having open opposite ends. A backing plate is removably secured to the body for closing one of the opposite ends. A flange extends outwardly from the body at the other of the opposite ends thereof for securing the body to a supporting member. A switch support plate is removably mounted in the body adjacent the other end thereof and has a central opening formed therein. A switch is secured to the switch support plate at the inner side thereof and has a movable switch arm extending outwardly through the central opening of the switch support plate. A pressure plate is removably secured to the body at the outer side of the switch support plate for activating the switch arm. A flexible member is removably secured to the body and covers the pressure plate and the other end of the body. A ring-shaped member secures the flexible member to the body. The apparatus is designed so that the backing plate may be removably secured to the other end of the body if desired and so that the switch support plate, pressure plate, flexible member and ring-shaped member may be secured to the one end of the body to enable the switch to be actuated from either end of the body depending upon the mounting of the same.
REFERENCES:
patent: 2826654 (1958-03-01), Conkling
patent: 2962565 (1960-11-01), Schlicksupp
patent: 3018343 (1962-01-01), Grostick
patent: 3121145 (1964-02-01), Jeep, Jr. et al.
patent: 3129299 (1964-04-01), Bondkrich
patent: 3283092 (1966-11-01), Grostick
patent: 3349203 (1967-10-01), Wolford
patent: 3396694 (1968-08-01), Gruber
patent: 3665359 (1972-05-01), Alms
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