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:
Jul. 06, 1993
Filed:
Jan. 24, 1992
Amos Pacht, Houston, TX (US);
Butterworth Jetting Systems, Inc., Houston, TX (US);
Abstract
A shut-off valve assembly in a very high pressure water gun is provided with a valve member between a pressure chamber and an outlet chamber which produces a quick pressure induced snap-off action just before closing which securely seats the valve member against leakage and erosion. Shortly after cracking the valve to an open position the pressure induced force is relieved and the regular biasing spring offers the only closing force. An improved high pressure seal is configured to seal with a short stem contact area designed to significantly reduce friction. A special safety bleeder valve bleeds to atmosphere independent of starting pressure.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile