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. 14, 1999
Filed:
Dec. 09, 1997
Steven M Reynolds, Lucas, OH (US);
Warren Rupp, Inc., Mansfield, OH (US);
Abstract
A composite flexible diaphragm for a diaphragm pump. The diaphragm has a diaphragm body with an outer perimeter, a center axis, and first and second exterior surfaces. The body has a perimeter flange portion extending around the body adjacent the outer perimeter. The body also has a disc portion extending radially outward from the center axis. The body has a convoluted flex portion disposed between the perimeter flange portion and the disc portion. The composite flexible diaphragm has a first layer of a chemically resistant material defining the first exterior surface. The diaphragm also has a second layer of flexible material which is bonded to the first layer and defines the second exterior surface of the diaphragm. The first layer of chemically resistant material has a reduced material thickness in the area of the flex portion of the diaphragm body.