Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1998-03-25
2000-02-29
Dougherty, Thomas M.
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310344, 310348, H01L 4104
Patent
active
060313188
ABSTRACT:
A crystal oscillating device comprises an outer case having a longitudinal axis, a cavity, a pair of first surfaces extending along the longitudinal axis, a pair of second surfaces extending in a direction generally transverse to the longitudinal axis, a first opening portion in one of the first surfaces for providing access into the cavity, a second opening portion in one of the second surfaces, and a groove in the other of the second surfaces. A crystal oscillator is disposed in the cavity of the outer case and has lead terminals extending through the second opening portion of the outer case for electrically connecting the crystal oscillator to a circuit board. A bonding material is disposed in the cavity of the outer case for bonding the crystal oscillator to the outer case. A connecting member is disposed in the groove of the outer case for connecting the outer case to the circuit board.
REFERENCES:
patent: 4306343 (1981-12-01), Rochat et al.
patent: 4670816 (1987-06-01), Johnk et al.
patent: 5640746 (1997-06-01), Knecht et al.
patent: 5773914 (1998-06-01), Gottier
Hoshi Hideo
Konno Takashi
Nakamura Kishirou
Shiraishi Masayoshi
Sunaga Kenji
Dougherty Thomas M.
Medley Peter
Seiko Instruments Inc.
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