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:
Dec. 05, 1978
Filed:
Dec. 30, 1975
Applicant:
Inventors:
Michael C Chervenak, Pennington, NJ (US);
Ronald H Wolk, San Jose, CA (US);
Assignee:
Hydrocarbon Research, Inc., Lawrenceville, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
137375 ; 251118 ;
Abstract
A pressure let-down valve assembly for handling pressurized liquids which contain abrasive solids including a valve adapted for handling such liquids and a flow reversal means for changing the direction of the flowing liquid. The flow reversal means contains a chamber having an outlet located at a point which permits a sufficient amount of liquid to accumulate therein to absorb at least a portion of the energy of the flowing solids in the liquid.