Electricity: circuit makers and breakers – Liquid contact – Time delay
Patent
1988-04-01
1989-07-18
Macon, Robert S.
Electricity: circuit makers and breakers
Liquid contact
Time delay
335 16, 335195, 335201, 200144R, 200 9, 200 10, A01H 3318, A01H 3320
Patent
active
048495905
ABSTRACT:
A switch has contacts constructed so that an electro-dynamic force is created by the current flowing through the switch which tends to maintain the switch in a closed state. This force counteracts other electro-dynamic forces which tend to open the switch. The contact design is particularly adapted from use in a single pole-double throw switch having a contact arm that is movable between two fixed contacts. The electro-dynamic force compensation exists between the contact arm and whichever one of the fixed contacts the contact arm is against. The fixed contacts also include arc runners so that any arc that develops as the contacts separate eliminates electro-dynamic force which tends to maintain the switch in a closed state.
REFERENCES:
patent: 1762604 (1930-06-01), Ainsworth
patent: 1958159 (1934-05-01), Bresson
patent: 2318488 (1943-05-01), Hunter et al.
patent: 2821594 (1958-01-01), Latour
patent: 2944129 (1960-07-01), Cole et al.
patent: 3092699 (1963-06-01), Latour
patent: 3238326 (1966-03-01), Frey
patent: 3593227 (1971-07-01), Mitskevich et al.
patent: 3887888 (1975-06-01), Bayles et al.
patent: 3936782 (1976-02-01), Moakler et al.
patent: 3949333 (1976-04-01), Freitag et al.
patent: 3958095 (1976-05-01), Zaffrann et al.
patent: 4001738 (1977-01-01), Terracol et al.
patent: 4021678 (1977-05-01), Moakler et al.
patent: 4086460 (1978-04-01), Gillette
patent: 4168407 (1979-09-01), Wiktor
patent: 4278958 (1981-07-01), Kandatsu
patent: 4467301 (1984-08-01), Goodrich
patent: 4511774 (1985-04-01), Forsell
patent: 4654490 (1987-03-01), Leone et al.
P. 3 of catalog 1100 from the Automatic Switch Company dated 1982.
Becker James A.
Freitag Lawrence F.
Kussy Frank W.
Kohler Company
Macon Robert S.
LandOfFree
Electric switch with counteracting electro-electro-dynamic force does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric switch with counteracting electro-electro-dynamic force, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric switch with counteracting electro-electro-dynamic force will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-173848