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. 15, 2009
Filed:
Dec. 28, 2004
Ulrich Meier, Waedenswil, CH;
Hans Greminger, Horgen, CH;
Ulrich Meier, Waedenswil, CH;
Hans Greminger, Horgen, CH;
Hans Oetiker AG Maschinen-und Apparatefabrik, Horgen, CH;
Abstract
A plug-in safety coupling for pressure pipes consists of a coupler box with a blocking member pivotally mounted therein. The latter has a diametrical through bore in which a plug can be inserted, in a depressurized state, at an acute to a right angle to the conducting position. The blocking member can be brought into the conducting position by pivoting the plug. A cupped locking sleeve shaving a hemispherical front end is placed over the coupler box with the pivoting member. This hemispherical front end comprises a spherically extending oblong hole that extends along a great circle on the hemispherical end from the center thereof. The locking sleeve is rotatably mounted on the coupler box and is biased by a spring to such an extent that its oblong hole extends with an offset by 90° relative to the pivoting plane of the blocking member of the plug. Only when the locking sleeve is pivoted, a plug can be inserted. Once the plug is pivoted into the conducting position, the locking sleeve, by the force of the spring, is pivoted by 90° and secures the plug from pivoting back.