Temperature sensitive tip-switch

Details Temperature sensitive tip-switch Temperature sensitive tip-switch

1998-12-17

1999-10-26

Picard, Leo P.

Electricity: electrothermally or thermally actuated switches

Thermally actuated switches

Plural diverse actuating means in single switch

337347, 337337, 337360, H01H 3702, H01H 3712, H01H 3752

Patent

active

059735864

ABSTRACT:
In one embodiment of the present invention, a temperature sensitive tip switch comprises a first conductive arm, a second conductive arm disposed in a parallel, spaced apart relation beneath the first conductive arm, a third conductive arm disposed in a parallel relation beneath the second conductive arm, and a temperature sensitive actuator blade disposed in a parallel, spaced apart relation beneath the third conductive arm. The second conductive arm includes a cut-out portion which is capable of downward flexion and the third conductive arm includes a cut-out portion which is capable of downward flexion and which is engaged with the cut-out portion in the second conductive arm. A first pair of normally closed, electrical contacts are mounted on the actuator blade and the third conductive arm. A second pair of normally closed, electrical contacts are mounted on the second conductive arm and the first conductive arm. In use, an adjustable thermostat shaft assembly is disposed to contact and selectively urge the cut-out portion in the second conductive arm in a downward direction so as to open the first pair of electrical contacts in a fast-action manner. In addition, an insulated button is mounted on the actuator blade and is disposed to contact and selectively urge the third conductive arm upwards upon the application of heat so as to open the first pair of electrical contacts in a fast-action manner. Furthermore, a gravity sensitive tip-over device is mounted on the actuator blade and is disposed to selectively urge the first conductive arm away from the second conductive arm upon a change in the orientation of the switch so as to open the second pair of electrical contacts.

REFERENCES:
patent: 3236977 (1966-02-01), Huffman
patent: 3354278 (1967-11-01), Piacent et al.
patent: 3451029 (1969-06-01), Levinn et al.
patent: 3452312 (1969-06-01), Bauer
patent: 3913048 (1975-10-01), Mertler
patent: 3936786 (1976-02-01), Peterson et al.
patent: 3964004 (1976-06-01), Mertler
patent: 4103269 (1978-07-01), Grable et al.
patent: 4166994 (1979-09-01), DeRemer
patent: 4259655 (1981-03-01), Balchunas
patent: 4285145 (1981-08-01), Balchunas
patent: 4345389 (1982-08-01), Balchunas
patent: 4968963 (1990-11-01), DeWitt et al.
patent: 5457444 (1995-10-01), Cook
patent: 5517165 (1996-05-01), Cook

Affiliated with

Also associated with

Rating

Temperature sensitive tip-switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Temperature sensitive tip-switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temperature sensitive tip-switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-769245