Electricity: circuit makers and breakers – Weight – Treads
Patent
1975-08-08
1978-03-21
Smith, Jr., David
Electricity: circuit makers and breakers
Weight
Treads
H01H 1316
Patent
active
040805190
ABSTRACT:
A monitoring device in the form of a ribbon or tape switch used to detect the distance an object is hit out in a field or open area. The switch consists of two conductor contacts mounted continuously on an insulated synthetic material to provide electrical continuity when an object touches it or rolls across it. The switch is sensitive enough to close from the weight of one ounce avoirdupois. The switch is constructed with a low profile angular shape so an object can roll over it without impeding its destination. The switch is made of simple enough construction to allow economic large scale manufacturing.
REFERENCES:
patent: B579104 (1976-01-01), Demler, Jr.
patent: 2138549 (1938-11-01), Labell
patent: 2843694 (1958-07-01), Bertaux
patent: 3610887 (1971-10-01), Betzer
patent: 3626350 (1971-12-01), Suzuki et al.
patent: 3886335 (1975-05-01), Hendricks
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