Electricity: circuit makers and breakers – Electric switch details – Contact
Patent
1992-01-24
1993-11-23
Recla, Henry J.
Electricity: circuit makers and breakers
Electric switch details
Contact
200284, 200541, H01H 106
Patent
active
052646726
ABSTRACT:
A miniature switching unit including two fixed contact pieces arranged one above the other and fixed to terminals, respectively, and a movable contact piece. Each of the fixed contact pieces is made of springy wire members and includes parallel portions having equal inner distances, respectively. The movable contact piece in the form of a rod having a thickness slightly larger than the inner distances of the parallel portions of the fixed contact pieces and includes an intermediate insulator, an upper conductor axially, concentrically and integrally connected to the upper end of the intermediate insulator and a forward conductor axially, concentrically and integrally connected to the lower end of the intermediate insulator. The movable contact piece is held in a housing so as to be positioned in and contacting the parallel portions of the first and second fixed contact pieces and movable in a manner that the intermediate insulator moves across any one of the first and second fixed contact pieces, which are arranged one above the other.
REFERENCES:
patent: 2700088 (1955-01-01), Snyder
patent: 2777037 (1957-01-01), Norton
patent: 2847529 (1958-08-01), Murr
patent: 3226496 (1965-12-01), Seaburg
patent: 3227822 (1966-01-01), Corey
patent: 3860776 (1975-01-01), Lockwood
patent: 4119822 (1978-10-01), Kobayohi et al.
Ishii Masaru
Nakagawa Susumu
Barrett Glenn T.
Daiichi Denshi Kogyo Kabushiki Kaisha
Recla Henry J.
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