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Monolithic Flexure Pre-Stressed Ultrasonic HornsA monolithic ultrasonic horn where the horn, backing, and pre-stress structures are combined in a single monolithic piece is disclosed. Pre-stress is applied by external flexure structures. The provision of the external flexures has numerous advantages including the elimination of the need for a pre-stress bolt. The removal of the pre-stress bolt eliminates potential internal electric discharge points in the actuator. In addition, it reduces the chances of mechanical failure in the actuator stacks that result from the free surface in the hole of conventional ring stacks. In addition, the removal of the stress bolt and the corresponding reduction in the overall number of parts reduces the overall complexity of the resulting ultrasonic horn actuator and simplifies the ease of the design, fabrication and integration of the actuator of the present invention into other structures.
Document ID
20150003460
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Sherrit, Stewart
Bao, Xiaoqi
Badescu, Mircea
Bar-Cohen, Yoseph
Allen, Phillip Grant
Date Acquired
March 20, 2015
Publication Date
February 17, 2015
Subject Category
Solid-State Physics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,958,270
Patent Application
US-Patent-Appl-SN-13/178,114
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