The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
Dec. 29, 2010
Mohan M. Vijay, Gloucester, CA;
Wenzhuo Yan, Ottawa, CA;
Andrew Tieu, Ottawa, CA;
Baolin Ren, Gatineau, CA;
Mohan M. Vijay, Gloucester, CA;
Wenzhuo Yan, Ottawa, CA;
Andrew Tieu, Ottawa, CA;
Baolin Ren, Gatineau, CA;
Pratt & Whitney Military Aftermarket Services, Inc., East Hartford, CT (US);
Abstract
An ultrasonic waterjet apparatus () has a mobile generator module () and a high-pressure water hose () for delivering high-pressure water from the mobile generator module () to a hand-held gun () with a trigger and an ultrasonic nozzle (). An ultrasonic generator in the mobile generator module () transmits high-frequency electrical pulses to a piezoelectric or magnetostrictive transducer () which vibrates to modulate a high-pressure waterjet flowing through the nozzle (). The waterjet exiting the ultrasonic nozzle () is pulsed into mini slugs of water, each of which imparts a waterhammer pressure on a target surface. The ultrasonic waterjet apparatus () may be used to cut and de-burr materials, to clean and de-coat surfaces, and to break rocks. The ultrasonic waterjet apparatus () performs these tasks with much greater efficiency than conventional continuous-flow waterjet systems because of the repetitive waterhammer effect A nozzle with multiple exit orifices or a rotating nozzle () may be provided in lieu of a nozzle with a single exit orifice to render cleaning and de-coating large surfaces more efficient. A water dump valve () and controlling solenoid are located in the mobile generator module () rather than the gun () to make the gun lighter and more ergonomic.