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:
Jul. 31, 2001
Filed:
Nov. 17, 1999
Philippe Jacques Auber, Le Havre, FR;
Dresser-Rand Company, The Woodlands, TX (US);
Abstract
The present invention relates to a shaft seal (,) comprising a sealing element (,) mounted co-axially to a rotary sealing ring (,) to form a primary seal between opposed faces thereof to substantially prevent fluid flow across the primary seal. The sealing element (,) is urged axially towards the rotary ring (,) by a springs (,) acting between a pusher sleeve (,) connected to the sealing element,and a seal housing (,). A secondary seal formed between the pusher sleeve (,) and the housing (,) by a sealing member (,) located in a channel (,) in the pusher sleeve (,).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile