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. 18, 1989
Filed:
Jul. 17, 1985
Kjell R Ekman, CH-6340 Baar, CH;
Other;
Abstract
A coupling arrangement comprises a first coupling part (1) and a second coupling part (2) which can be connected to and disconnected from the first coupling part. The first coupling part houses a longitudinally displaceable valve (4), and a sealing device (10, 19, 20) prevents medium from leaking between the valve and the first and second coupling parts. Between opposing surfaces (4f and 1e respectively) on the outer surface of the valve and an inner wall in the first coupling part there is a first sealing elment (19, 20). The first sealing element prevents the medium pressure from reaching a surface area (4e') which, viewed in a radial direction, is located outside the opposing surfaces (4f, 1e) and is situated on the valve or adjoining the valve. In this way, the medium pressure is prevented from acting on the surface area and occasioning a force (F) which is directed counter to a lifting force (F') on the valve.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile