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. 15, 2005
Filed:
Feb. 05, 2003
George Macdonald, Franklin, NH (US);
George MacDonald, Franklin, NH (US);
Duramax Marine, LLC, Hiram, OH (US);
Abstract
A sealing device for use with a drive shaft of a water vessel. The sealing device comprises a housing for a seal and bearing, a compression ring, a lip seal flange attachment and a diaphragm for tracking the movement of the shaft. The diaphragm is made of a resilient, flexible material and is operatively connected to the seal housing. In operation, the diaphragm tracks the motion of the drive shaft so that the drive shaft may move freely in the hull of the vessel. The diaphragm allows the rigid seal housing to also move in response to any axial, lateral or circular-axial (wobble-like) movement of the shaft so that a constant seal around the shaft is provided.