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:
Feb. 07, 1995
Filed:
Jun. 04, 1993
Applicant:
Inventor:
Francis V Marchal, Erie, PA (US);
Assignee:
Ber-Lo Manufacturing Company, Inc., Erie, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251282 ; 251358 ;
Abstract
A high pressure valve having a gland with a pressure assist chamber therein, a body with an inlet and an outlet and a seat between the inlet and outlet. A piston in the pressure assist chamber. The stem having a lateral tip having a soft stem tip is concentrically bored to connect fluid pressure from the inlet to the top of the piston urging the piston to move the stem and the soft valve tip member toward the valve seat.