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Capacitive Relay

IP.com Disclosure Number: IPCOM000098532D
Original Publication Date: 1959-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 33K

Publishing Venue

IBM

Related People

Greene, K: AUTHOR

Abstract

The capacitive relay R comprises a continuous plastic film 1, which is coated on both faces with separate layers 2 and 3 of conductive material. The film is folded in an accordion-pleated manner and mounted at one end on a frame 4. The free end 5 of the plastic fold, abuts against a stud 6 extending from the central blade 7 of contacts 8. A pair of input terminals 9 and 10 is of the polarity noted.

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Capacitive Relay

The capacitive relay R comprises a continuous plastic film 1, which is coated on both faces with separate layers 2 and 3 of conductive material. The film is folded in an accordion-pleated manner and mounted at one end on a frame 4. The free end 5 of the plastic fold, abuts against a stud 6 extending from the central blade 7 of contacts 8. A pair of input terminals 9 and 10 is of the polarity noted.

When potential is applied at 9 and 10, a positive charge is applied to the conductive coating 2 on one side of the film 1 and a negative charge is applied to coating 3. This causes the folded film stack to expand because of the electrostatic repulsion of like charges between adjacent folded surfaces. The expansions and contractions of the folded film are used to operate relay contacts
8.

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