Electricity: circuit makers and breakers – Special application – Change of inclination or of rate of motion responsive
Patent
1980-03-20
1981-08-18
Scott, James R.
Electricity: circuit makers and breakers
Special application
Change of inclination or of rate of motion responsive
102262, 200 615, 200276, 42C 1540, H01H 3502, F42C 1540
Patent
active
042848628
ABSTRACT:
An acceleration actuated switch is disclosed which is capable of distinguishing between random and brief acceleration forces on the one hand and sustained acceleration forces on the other hand. The device comprises a stationary electrical contact and a movable contact held in position by biasing means. Sustained acceleration forces in a particular direction will drive the movable contact along a fixed path to a position whereat the biasing means may bring the movable contact into proximity with the stationary contact thereby closing the switch. If the acceleration force is not in the proper direction or is not applied to the switch for a sufficient length of time, the biasing means will return the movable contact to its original position thereby maintaining the switch in an open condition.
REFERENCES:
patent: 2424390 (1947-07-01), Ferris
patent: 2854539 (1958-09-01), Ruppel
patent: 3126758 (1964-03-01), Martin et al.
patent: 3548137 (1970-12-01), Farrell et al.
patent: 3798399 (1974-03-01), Corporandy
Harry Diamond Laboratories; Louis Richmond et al.; "Hi-Performance PD Fuze or Mortar and Artillery"; Dec. 1971, Publication No. HDL-TR-1577.
Harry Diamond Laboratories; D. L. Overman et al.; "Proposed New Setback Sensor for XM734 Mortar Fuze"; Nov. 19, 1973; Report No. M-420-73-3.
Harry Diamond Laboratories; L. Ronyus et al.; "Zig-Zag Setback Sensor-Low Cost Cam Design", Nov. 21, 1973; Report No. M-420-73-4.
Harry Diamond Laboratories; A. Greg Beard; "The Zig-Zag Setback Sensor"; Jan. 30, 1974; Report No. R-420-74-1.
Johnson Robert N.
Overman David L.
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Scott James R.
The United States of America as represented by the Secretary of
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