Electricity: circuit makers and breakers – Special application
Patent
1979-08-23
1981-12-01
Truhe, J. V.
Electricity: circuit makers and breakers
Special application
200 47, 200 6113, 200276, 242190, 360 743, H01H 316
Patent
active
043038131
ABSTRACT:
A pair of electrical switches are arranged to be engaged by a respective pivoted carriage member, to indicate the end of tape in correlation with the diameter of a tape reel mounted on each carriage member. Each switch is generally contained within a housing having a longitudinal axis. A pair of electrical contacts, each interconnected to the circuitry of the system, are positioned within the housing adjacent to the axis. A plunger is adapted to be operable along the longitudinal axis between the two contacts and has one end extending from the housing to act as an actuator. A yoke has a base threadedly secured to the plunger and has a body extending parallel with the plunger within the housing. An elastic shorting member is partially compressed and positioned within the body of the yoke. The elastic shorting member is adapted to engage the electrical contacts to conduct electricity through the switch. A compression spring is used to urge the elastic shorting member away from the electrical contacts whereby the switch will be actuated by the position of the plunger which corresponds to a desired position of the respective carriage member.
REFERENCES:
patent: 3924089 (1975-12-01), Abernethy
patent: 3958272 (1976-05-01), Rotter et al.
patent: 4023748 (1977-05-01), Burdorf et al.
BASF - Aktiengesellschaft
Ginsburg Morris
Truhe J. V.
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