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. 04, 2001
Filed:
Apr. 18, 2000
Applicant:
Inventors:
David M. Borish, Morrisville, PA (US);
Robert F. Bean, Spring City, PA (US);
Richard J. Caspar, West Chester, PA (US);
Assignee:
Milton Bay, Ivyland, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 1/700 ; F04B 3/500 ;
U.S. Cl.
CPC ...
F04B 1/700 ; F04B 3/500 ;
Abstract
The compact, easily useable metering pump results from a structure including a housing (,) with a pumping chamber (,) within the housing (,). A diaphragm (,) is located in the pumping chamber (,). An inlet includes a check valve (,) for allowing fluid to flow to one side of the diaphragm (,) but not the reverse and an outlet including a check valve (,) allows fluid to flow from the pumping chamber (,) but not into it. A pneumatically operated hydraulic pump (,) is located in the housing (,) and cycles the diaphragm (,).