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:
Sep. 16, 1980
Filed:
Jan. 19, 1979
Eugene H Herzan, Minnetonka, MN (US);
Lyle R Johnson, Minneapolis, MN (US);
Parker-Hannifin Corporation, Cleveland, OH (US);
Abstract
A manually actuated coupler hydraulically connects large diameter high pressure conduits while the conduits are pressurized. One of the conduits is provided with a body 11, a sleeve 12, and a lever 13 for effecting relative movement between the body and the sleeve. The other conduit is provided with a nipple 14. When the nipple and body are initially connected, they cooperatively define a chamber 43 which is hydraulically isolated from both conduits. The lever is then rotated to advance the sleeve toward the nipple and to open poppet valves 33, 34 in the sleeve and nipple to hydraulically connect the conduits through the chamber 43. The sleeve includes a pressure balancing area 48 which is in open fluid pressure communication with the chamber 43 under conditions, so that high fluid pressure from either conduit will pressure balance the sleeve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile