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:
Jun. 05, 2001
Filed:
Nov. 10, 1998
Steven M. Reynolds, Lucas, OH (US);
Warren Rupp, Inc., Mansfield, OH (US);
Abstract
A fluid powered diaphragm pump is provided which includes three means for supplementing the pilot valve signal to the main fluid valve spool. The means include a cross porting of the main fluid valve spool, or engineered orifices that communicate pressurized air being delivered to one of the inner diaphragm chambers of the pump to the main fluid valve spool by way of either the intermediate bracket or the pilot valve housing. Design features also include the location of the pilot valve assembly immediately below the pressurized fluid inlet cap and between the inlet cap and the main fluid valve assembly. Further, an integrated exhaust muffler is mounted directly to the main fluid valve housing and the main fluid valve housing includes a segmented sleeve assembly which makes it easier to service the main fluid valve assembly and, specifically, the main fluid valve spool. Further, proximity sensors are provided at either end of the main fluid valve spool and an interface is provided to connect the pump to electronic monitoring equipment.