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:
Sep. 30, 1997
Filed:
Apr. 29, 1996
Robert F Miller, Arcadia, CA (US);
Vemco Corporation, San Dimas, CA (US);
Abstract
In a valve unit to control the flow of high-pressure fluid, the combination comprises a housing having a fluid inlet and a fluid outlet, a flow port in the housing communicating between the inlet and outlet, and a seat associated with the flow port; a stopper to be moved toward and away from the seat; a flow chamber in the housing to which high-pressure fluid flows when the stopper has been moved from the seat, for flow to the outlet, the stopper used to close off the flow when the stopper engages the seat; a cap carried by the housing at the outlet; and first signal means associated with the cap to signal presence or absence of pressurized fluid leakage into the flow chamber before the stopper has been moved from the seat.