Electrical generator or motor structure – Educational or construction units or kits
Patent
1974-05-31
1976-01-06
Budd, Mark O.
Electrical generator or motor structure
Educational or construction units or kits
310 89, 310 82, H01L 4104
Patent
active
039313883
ABSTRACT:
A ceramic package is disclosed which comprises a frame member having an ature for accommodating a crystal resonator. The frame member includes mounting clips for supporting the crystal resonator in a desired vibratory mode. A bottom and top lid are then fastened to the frame to enclose the crystal to also enable hermetic sealing in an ultra high vacuum without the use of large deleterious forces.
The package provides a hermetic enclosure enabling improved frequency stability and overall reliability.
REFERENCES:
patent: 1875324 (1932-09-01), Bower
patent: 2341683 (1944-02-01), Bailey
patent: 2409838 (1946-10-01), Cress
patent: 3047749 (1962-07-01), Fisher
patent: 3069572 (1962-12-01), Dick et al.
patent: 3173035 (1965-03-01), Fisher
patent: 3828210 (1974-08-01), Livenick et al.
patent: 3832761 (1974-09-01), Sheahan et al.
Hafner Erich
Vig John R.
Budd Mark O.
Edelberg Nathan
Gibson Robert P.
Murphy Kenneth J.
The United States of America as represented by the Secretary of
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