Plug-in safety coupling for pressure pipes, comprising a pivoted blocking member
US7588230B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Sep 15, 2009 |
| Priority date | — |
| Expiry date | Jun 2, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L37/47
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.