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:
Oct. 20, 1998
Filed:
Apr. 21, 1995
Robert E Rockwood, Windham, NH (US);
Environamics Corporation, Hudson, NH (US);
Abstract
A seal arrangement for a centrifugal pump including a split ring shaft seal located inboard of both the shaft sleeve and a cartridge-loaded bellows seal so as to prevent the fluid being pumped from leaking under the sleeve and carbonizing. Because there is no carbonization under the sleeve, the bellows seal does not become bonded to the pump shaft. Accordingly, seal disassembly is made easier. A plurality of elongated push rods are disposed along the shaft between the split ring seal and a pushing assembly. The pushing assembly forces the push rods toward the split ring seal so as to tighten it down into fluid sealing contact with the outer periphery of the shaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile