Mounting for multiple crystal filter blanks

Details Mounting for multiple crystal filter blanks Mounting for multiple crystal filter blanks

1990-11-16

1992-04-28

Budd, Mark O.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

310342, 310344, H01L 4108

Patent

active

051091763

ABSTRACT:
Two or more crystal filter blanks are mounted together in such a manner so as to minimize the printed circuit board surface area occupied by their aggregate footprint and to minimize the vibratory and oscillatory interference among the cyrstal filters. Mounting devices are coupled to a first nonvibratory node and a second nonvibratory node of the crystal blanks to minimize vibrational and oscillatory interference between the crystal filters. Insulating material is disposed between the crystal blanks for electrically insulating and physically separating the crystal blanks from each other to additionally minimize electrical and vibrational interference between the crystal blanks.

REFERENCES:
patent: 2321358 (1943-06-01), Bokovoy
patent: 2771561 (1956-11-01), Fuller
patent: 2927285 (1960-03-01), Curran et al.
patent: 3073975 (1963-01-01), Bigler et al.
patent: 3596212 (1971-07-01), Pinner et al.
patent: 4112324 (1978-09-01), Yamaguchi et al.
patent: 4317059 (1982-02-01), Besson

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