Laser machining of electroactive ceramics

Details Laser machining of electroactive ceramics Laser machining of electroactive ceramics

2005-12-27

2005-12-27

Dougherty, Thomas M. (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

C310S367000, C310S368000, C310S369000, C310S371000

Reexamination Certificate

active

06979937

ABSTRACT:
Laser beam machining is applied to form arbitrarily shaped electroactive ceramics for transducers (e.g., electromechanical sensors and actuators). One particularly preferred embodiment of the invention comprises machining parallel grooves in a ceramic plate to improve flexibility. The grooves provide strain relief in bending by relieving Poisson strains transverse to the direction of bending. This embodiment offers the further benefit that planar anisotropy or directionality is introduced in the transducer. The machining process of the invention further enables the production of more complex geometries than those currently known in the art. Because of the flexibility of the machining process, virtually any desired transducer shape may be produced.

REFERENCES:
patent: 3111595 (1963-11-01), Junger
patent: 3243768 (1966-03-01), Roshon, Jr. et al.
patent: 3382841 (1968-05-01), Bouyoucos
patent: 3504206 (1970-03-01), Fritsch
patent: 3971962 (1976-07-01), Green
patent: 4115036 (1978-09-01), Paterson
patent: 4281550 (1981-08-01), Erikson
patent: 4586512 (1986-05-01), Do-huu et al.
patent: 4962332 (1990-10-01), Rokurohta et al.
patent: 4992692 (1991-02-01), Dias
patent: 5076314 (1991-12-01), Ikehata et al.
patent: 5598050 (1997-01-01), Bowen et al.
patent: 5633554 (1997-05-01), Kaji
patent: 5684884 (1997-11-01), Nakaya et al.
patent: 5707715 (1998-01-01), deRochemont et al.
patent: 6337465 (2002-01-01), Masters et al.
patent: 6443900 (2002-09-01), Adachi et al.
patent: 6483225 (2002-11-01), Spigelmyer
patent: 6803700 (2004-10-01), Maushard et al.
patent: 0031614 (1981-07-01), None
patent: 55-35527 (1980-03-01), None
patent: 57-87299 (1982-05-01), None
patent: 64-25583 (1989-01-01), None
patent: 2-95356 (1990-04-01), None
patent: 4-200097 (1992-07-01), None

Affiliated with

Also associated with

Rating

Laser machining of electroactive ceramics does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser machining of electroactive ceramics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser machining of electroactive ceramics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3512782