Electrical generator or motor structure – Educational or construction units or kits
Patent
1976-06-22
1977-06-28
Budd, Mark O.
Electrical generator or motor structure
Educational or construction units or kits
310 82, 310 87, 200 85R, 200181, H01L 4104
Patent
active
040328040
ABSTRACT:
Three different embodiments of the ultrasensitive differential point contact relay configuration of this invention are disclosed. The first or basic embodiment is particularly suited for use in intrusion detection systems or as a strain gauge/accelerometer and the like. The second embodiment is particularly suited for use as an ultrasensitive electrically actuated relay and the like. The third embodiment performs the function of an ultrasensitive strain gauge/accelerometer whose output is the mix of the mechanical and electrical stimulus. The basic embodiment comprises a point contact relay housed in a two section case or container. The two sections of the container are joined by a lower modulus section. A movable contact arm is spring biased against a second movable contact and the base of the contact arm floats in a viscous fluid. In the second embodiment the case or container is formed as one section and a piezoelectric crystal is mechanically coupled to the second contact. In the third embodiment the case or container is similar to the case or container of the basic embodiment and a pair of transducers are mechanically coupled to the second contact.
REFERENCES:
patent: 2387108 (1945-10-01), Arndt, Jr. et al.
patent: 3659163 (1972-04-01), Borisov et al.
patent: 3858173 (1974-12-01), Ryan
Budd Mark O.
Edelberg Nathan
Ovrevik Glenn S.
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