Vibration driven motor

Details Vibration driven motor Vibration driven motor

1995-03-14

1998-03-10

Dougherty, Thomas M.

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

H02N 200

Patent

active

057265151

ABSTRACT:
In an ultrasonic motor wherein a driving signal is applied to an electro-mechanical energy conversion element provided in a vibration member to thereby excite flexural vibrations of the same shape in the two different planes of the vibration member with a phase difference in time and thereby create rotational motion on the surface of the vibration member, thus frictionally driving a movable member which is in pressure contact with the vibration forming surface, electro-mechanical energy conversion elements for exciting the flexural vibrations are each disposed at a position whereat the sum totals of strains created in the electro-mechanical energy conversion elements are substantially equal to each other.

REFERENCES:
patent: 3331589 (1967-07-01), Hammitt et al.
patent: 3524085 (1970-08-01), Shoh
patent: 3578996 (1971-05-01), Balmuth
patent: 4065687 (1977-12-01), Mishiro
patent: 4703214 (1987-10-01), Mishiro
patent: 4705980 (1987-11-01), Mishiro
patent: 4728843 (1988-03-01), Mishiro
patent: 4764702 (1988-08-01), Mishiro
patent: 4885499 (1989-12-01), Ueha et al.
patent: 4975614 (1990-12-01), Honda
patent: 5001382 (1991-03-01), Umeda et al.
patent: 5057182 (1991-10-01), Wuchinich
patent: 5112300 (1992-05-01), Ureche
patent: 5122700 (1992-06-01), Tamai et al.
patent: 5231325 (1993-07-01), Tamai et al.
patent: 5270484 (1993-12-01), Tsuchiya et al.
Rev. Telegr. Electron. (Argentina), vol. 67, No. 792, Jan, 1979, by G. Venturino et al.

Affiliated with

Also associated with

Rating

Vibration driven motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vibration driven motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vibration driven motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-142201