Detectable push-pull-though details for switch pad

Details Detectable push-pull-though details for switch pad Detectable push-pull-though details for switch pad

2006-04-04

2006-04-04

Friedhofer, Michael A. (Department: 2832)

Electricity: circuit makers and breakers

Solid contact

Membrane type

C200S051090, C341S022000, C345S168000

Reexamination Certificate

active

07022929

ABSTRACT:
A control assembly comprising a switch pad and a circuit board. The switch pad has a connection member, a first contact adjacent the connection member, and a flexible dome having a second contact. The circuit board is engaged with the switch pad and includes an engagement area engaged with the connection member, third contacts adjacent the engagement area and fourth contacts. The flexible dome of the switch pad is configured to be depressed to engage the second contact with the fourth contacts to electrically connect the fourth contacts. The first contact electrically connects the third contacts when the circuit board is engaged with the switch pad. The first contact and the third contacts form a first circuit for determining if the switch pad is properly engaged with the circuit board such that the second contact will form a second circuit with the fourth contacts when the flexible dome is depressed.

REFERENCES:
patent: 4491702 (1985-01-01), Kato
patent: 4634818 (1987-01-01), Hayes-Pankhurst et al.
patent: 5952629 (1999-09-01), Yoshinaga et al.
patent: 6486427 (2002-11-01), Pruvot
patent: 6571457 (2003-06-01), Naritomi
patent: 6677843 (2004-01-01), Monroe et al.
patent: 6710269 (2004-03-01), Kunigkeit et al.
patent: 6906275 (2005-06-01), Koyama et al.

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