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:
Jun. 04, 1991
Filed:
Oct. 30, 1989
Applicant:
Inventors:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05B / ;
U.S. Cl.
CPC ...
2391022 ; 175 67424 ;
Abstract
A nozzle for water jet cutting has a piezoelectric element provided at a position for acting on a fluid in its pressure chamber. A voltage varying with time is applied to the piezoelectric element to provide flow rate oscillation or pressure pulsation to the fluid which is jetted from the nozzle.