Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1985-07-22
1987-03-31
Rowland, James L.
Communications: electrical
Condition responsive indicating system
Specific condition
24633, 24664, 116266, 116281, 116283, 340566, 340611, 340614, 403290, 403322, G08B 2100
Patent
active
046546430
ABSTRACT:
By providing a pressure responsive actuator in controlled actuating engagement with a latch mechanism in which a spring-loaded indicator is securely retained, with said indicator being movable from a non-visible, retained position to a visible, released position in response to pressure exceeding a desired level, a unique, precision constructed pressure sensor and indicator is achieved. In the preferred embodiment, the latch mechanism comprises a plurality of elongated, resilient, spring-biased locking fingers, with the locking fingers being controllably disengaged from the indicator in response to the movement of the pressure responsive actuator. In addition, the present invention is also quickly and easily manually reset, thereby further enhancing the usability of the present invention.
REFERENCES:
patent: 1955018 (1934-04-01), Rego
patent: 2468768 (1949-05-01), Malick
patent: 2504381 (1950-04-01), Bordelon
patent: 4010708 (1977-03-01), Keledy et al.
patent: 4421349 (1983-12-01), Greiert, Jr.
Myer Daniel
Rowland James L.
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