Flexible circumferential switch

Details Flexible circumferential switch Flexible circumferential switch

1993-06-03

1995-09-19

Recla, Henry J.

Electricity: circuit makers and breakers

Solid contact

Hand held squeeze actuated switch

200 60, 235462, H01H 302

Patent

active

054517354

ABSTRACT:
A circumferential switch has a flexible electrically conductive band positioned around and separated from an outer circumference of a tubular body so that an air gap is formed between the band and tubular body. The band is electrically connected to a circuit board, contained within the tubular body, by a lead that passes through a circular hole in the tubular body. The circuit board is in electrical contact with the tubular body, which is also electrically conductive. The switch is in a first state in its normal position, i.e., positioned around and separated from the outer circumference of the tubular body. The switch changes states only when any part of the band makes contact with the tubular body. Thus, when the band is depressed by being squeezed, i.e., deflected, the band makes electrical contact with the tubular body, and the switch is in a second state. When pressure on the switch is released, the band returns to its original position and breaks the electrical connection and so the switch returns to the first state.

REFERENCES:
patent: 3746814 (1973-07-01), Lackey et al.
patent: 4272658 (1981-06-01), Crosby
patent: 4492832 (1985-01-01), Taylor
patent: 4748319 (1988-05-01), Sasaki et al.

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