Electricity: circuit makers and breakers – Retarded – Clock train
Patent
1982-12-03
1985-06-25
Herrmann, Allan D.
Electricity: circuit makers and breakers
Retarded
Clock train
200 38B, 74 2, 74 352, H01H 4310, F16H 540, F16H 374
Patent
active
045256080
ABSTRACT:
A timer comprising a driven control cam having a first and second cam track. First and second resilient arms carry opposing contacts and the second arm has a lateral projection in the direction of the second cam track. A cam following member extending between the second arm and first cam track is biased into cam-following engagement with the first cam track by the second arm. A spring biased pivotal rocker arm having at one end a cam follower portion and at the other end a lifter portion. During rotation of the control cam, the cam following member and first cam track are operative to prevent closing the contacts. The cam following member and firt cam track further being operative to release the cam following member from the first cam track and close the contact. The rocker arm and second cam track being operative to pivot the rocker arm so the lifter portion engages the lateral projection of the second arm and opens the contacts. In addition, there is a mechanism to reset the time for subsequent cycling as mentioned above.
REFERENCES:
patent: Re29158 (1977-03-01), Cartier et al.
patent: 2781765 (1957-02-01), Steidley
patent: 2782271 (1957-02-01), Jordan
patent: 2784582 (1957-03-01), Hartung et al.
patent: 3072129 (1963-01-01), Seal
patent: 3124145 (1964-03-01), Egle
patent: 3124146 (1964-03-01), Jenkins et al.
patent: 3199525 (1965-08-01), Jellies
patent: 3603749 (1971-09-01), Davis
patent: 3723676 (1973-03-01), Harris
patent: 3814874 (1974-06-01), Brown
patent: 3818157 (1974-06-01), Voland et al.
patent: 3922924 (1975-12-01), Harris
patent: 3937981 (1976-02-01), Nystuen et al.
patent: 3965312 (1976-06-01), Mahon
patent: 4060702 (1977-11-01), Linn
patent: 4080583 (1978-03-01), Fujita
patent: 4355217 (1982-10-01), Cushing
patent: 4381432 (1983-04-01), Cushing
patent: 4413164 (1983-11-01), Obermann et al.
patent: 4453426 (1984-06-01), Groutage et al.
patent: 4468600 (1984-08-01), Barthel et al.
Andrews Stephen B.
General Electric Company
Herrmann Allan D.
Reams Radford M.
Weidner Frederick P.
LandOfFree
Timer mechanism with improved interval accuracy does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Timer mechanism with improved interval accuracy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Timer mechanism with improved interval accuracy will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-556195