Electrical generator or motor structure – Educational or construction units or kits
Patent
1974-12-04
1976-10-26
Budd, Mark O.
Electrical generator or motor structure
Educational or construction units or kits
310 85, H01L 4104
Patent
active
039886212
ABSTRACT:
The invention relates to a support structure for a thickness-shear mode, convex lens type oscillator.
The support structure contains an elastic ring made from an insulating material such as nylon. This ring is formed with a plurality of spaced, radially inwardly and integrally extending projections from the ring proper and said projections represent concentric recesses of opposite configurations one after another adapted for establishing pressure contact with the quartz crystal at their opposite surfaces and at different peripheral areas thereof.
REFERENCES:
patent: 2326923 (1943-08-01), Bokovoy
patent: 2967957 (1961-01-01), Massa
patent: 3137836 (1964-06-01), Glover
patent: 3173035 (1965-03-01), Fisher
patent: 3622816 (1971-11-01), McGrew
patent: 3708702 (1973-01-01), Brunnert et al.
patent: 3746898 (1973-07-01), Austin et al.
Hishida Hiroshi
Koyama Isao
Nakayama Toshihiko
Wakabayashi Hisao
Yoshikawa Hisao
Budd Mark O.
Citizen Watch Co. Ltd.
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