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. 23, 1990
Filed:
Mar. 27, 1989
Applicant:
Inventor:
Clark S Boster, Whittier, CA (US);
Assignee:
BW/IP International, Inc., Long Beach, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K / ; B25G / ; F04O / ;
U.S. Cl.
CPC ...
277-5 ; 277 65 ; 403286 ; 403341 ; 415231 ; 415901 ;
Abstract
In a fluid handling appartus comprising a multi-stage mechanical seal assembly, an additional mechanical seal assembly to maintain a substantially constant exit pressure of leakage from the last stage of the multi-stage mechanical seal assembly, and a novel driving arrangement between the motor and the fluid machine.
Boster, Clark. (1990). Fluid handling apparatus with shaft sleeve and extension (U.S. Patent No. 4964646). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4964646
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile