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:
Jan. 27, 1987
Filed:
May. 09, 1985
Applicant:
Inventors:
Terry A Baumgardner, Springfield, OH (US);
Jere L Krouse, Urbana, OH (US);
Alan G Wild, Woodstock, OH (US);
Assignee:
Robbins & Myers, Inc., Springfield, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04C / ; F16J / ; F16D / ;
U.S. Cl.
CPC ...
418 48 ; 2772 / ; 464159 ; 464173 ;
Abstract
A seal for a gear ball joint in a progressing cavity pump. The seal includes a flexible seal member having a depending flange portion including five sealing surfaces for sealing against mating parts of the joint assembly. The seal also includes an annular stiffening wire molded within the flange portion to provide dimensional stability during seal molding, structural support during assembly and increased working life.