Turn-on method and apparatus for ultrasonic operations

Details Turn-on method and apparatus for ultrasonic operations Turn-on method and apparatus for ultrasonic operations

1976-03-02

1977-09-13

Whitby, Edward G.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156351, 156366, 1565801, 228 1A, 264 23, 310317, B32B 518

Patent

active

040479927

ABSTRACT:
Ultrasonic method and apparatus having improved turn-on. Low level power is furnished to an unloaded transducer to start it running at a desired frequency. High level power is then furnished the transducer for performing the ultrasonic operation while loaded. The high level power is stopped and the low level power is maintained, reduced or stopped before the load is removed.

REFERENCES:
patent: 3573781 (1971-04-01), Shoh
patent: 3585096 (1971-06-01), Uhimchuck et al.
patent: 3791569 (1974-02-01), Mims

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