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:
Oct. 03, 2000
Filed:
Apr. 07, 1999
David S Young, Maquoketa, IA (US);
Marley Pump, Davenport, IA (US);
Abstract
A manifold assembly includes a housing unit which has a check valve assembly and a pressure relief valve assembly formed in one integral unit. When the check valve is in a closed position, the dispensing line is sealed off from the pumping assembly. In addition, the check valve also seals off the pressure relief outlet in the same movement, by the use of two O-rings placed on a lockdown member. Line maintenance tests may be performed accurately, as well as testing of the pumping assembly, when the check valve and pressure relief valve are closed. This structure provides an improved assembly since the check valve and pressure relief valve are formed in one integral unit so as to be adjacent one another so that both valves can be conveniently closed off at the same time during a maintenance check.