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:
Mar. 11, 1986
Filed:
Nov. 05, 1984
Applicant:
Inventors:
Robert A Hay, II, Midland, MI (US);
Albert C Dowell, Mount Pleasant, MI (US);
Assignee:
The Dow Chemical Company, Midland, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277 65 ; 277 961 ; 277133 ;
Abstract
Improved shaft seal is provided wherein generally radially extending distendable diaphragms are used to adjust the sealed gap. A flushing lubricant is provided. The seal is particularly suited for use in gear pumps handling viscous materials such as heat plastified thermoplastics.