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:
May. 04, 1976
Filed:
Dec. 23, 1974
Applicant:
Inventor:
Michael M Calistrat, Sykesville, MD (US);
Assignee:
Koppers Company, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
64 / ; 64 3 / ;
Abstract
A permanently sealed gear coupling for connecting a pair of substantially coaxially aligned rotatable shafts comprising a hub connected to each of the rotatable shafts, each of the hubs including outwardly extending spur gear teeth projecting from a portion of the outer surface thereof; a sleeve surrounding and radially spaced from each of the hubs, the sleeve having inwardly extending spur gear teeth in meshing engagement with the outwardly extending gear teeth on each hub; and permanently mounted sealing rings for retaining lubricant in spaces between the hubs and the sleeve for lubricating the meshing gear teeth.