Electrical generator or motor structure – Non-dynamoelectric – Piezoelectric elements and devices
Patent
1997-03-04
1998-12-08
LaBalle, Clayton
Electrical generator or motor structure
Non-dynamoelectric
Piezoelectric elements and devices
310344, 310341, 310340, H02N 204, H01L 4104
Patent
active
058474889
ABSTRACT:
An apparatus having a drive device using an electromechanical transducer capable of being used in an environment in vacuum, at high temperatures and shielded from outside, an environment where electromagnetic waves are shielded or the like, where a drive shaft and a slider block frictionally coupled thereto are arranged at the inside of a hermetically-sealed vessel, one end of a drive shaft is made to penetrate a wall face portion of the hermetically-sealed vessel and the drive shaft is coupled with a piezoelectric element arranged at the outside of the vessel, the wall face portion of the hermetically-sealed vessel where the drive shaft penetrates is made elastically deformable, a portion between the wall face portion and the drive shaft is shielded in airtight by an adhesive agent and elongation and contraction displacements having different velocities are caused at the piezoelectric element whereby the slider block frictionally coupled with the drive shaft and members fixed to the slider block at the inside of the hermetically-sealed vessel are moved in a predetermined direction.
REFERENCES:
patent: 4195243 (1980-03-01), Thaxter
patent: 4947077 (1990-08-01), Murata
patent: 5089708 (1992-02-01), Asselbergs
patent: 5164974 (1992-11-01), Kariya et al.
patent: 5225941 (1993-07-01), Saito et al.
patent: 5589723 (1996-12-01), Yoshida et al.
Okamoto Yasuhiro
Yoshida Ryuichi
LaBalle Clayton
Minolta Co. , Ltd.
Williams Timothy A.
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