Title: Rotary switch with spaced circuit boards and discrete contacts on rotor opposite faces electrically insulated from furthermost board

Abstract: In multiple position rotary switch a pair of printed circuit boards are arranged adjacent opposite sides of a single brush bearing rotatable element. Brush blocks have a plurality of contacting extensions which may be selectively deleted in accordance with circuit design. The rotatable element includes an integral wheel having peripheral means in association with a detent in the housing for particularly positioning the wheel relative to the circuit boards for selectively connecting circuits thereon to establish desired switch connections.

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Inventors: Erickson, Richard W. (Glendora, CA, US)
Pallaske, James (Covina, CA, US)
Talbert, Stephen (Pasadena, CA, US)

Application Number: 785076
Filing Date: 1977-04-06
Publication_date: 1978-12-26
Assignee: Becton, Dickinson Electronics Company (Pasadena, CA)
Primary Class(es): 200/11DA 200/11G, 200/14, 200/565
Other Classes:
US Patent Ref:

2056919	Oct, 1936	Casper	200/266.
2547947	Apr, 1951	Kleis et al.	200/266.
3258830	Jul, 1966	Pityo	200/267.
3586797	Jun, 1971	Gerhardt et al.	200/292.
3594527	Jul, 1971	Brant et al.	200/11.
3734869	May, 1973	Menard et al.	200/11.
3786205	Jan, 1974	Lien	200/267.
3794784	Feb, 1974	Snider	200/11.
3819886	Jun, 1974	Homan et al.	200/38.
4032730	Jun, 1977	Golbeck et al.	200/11.
4034178	Jul, 1977	Koppenheffer et al.	200/11.

Other Refs: 2314277221782239394

Oct, 1974	DE
Oct, 1968	SU
Aug, 1969	SU

Other References: Davis, W. M.; IBM Tech. Disc. Bull.; Wafer Switch; vol. 18; No. 10; 3-1976, pp. 3405, 3406.
Stengel, R. F.; Design News; "Rotary Switch Squeezes into Minimal Envelope", pp. 52, 53.