Patent · US Active

Backlash-free plug-in connection for pipe lines and hose lines

US9970580B2 · kind B2 · utility

0Cited by

1References

15Claims

0Family size

Assignee

PARKER HANNIFIN MANUFACTURING GERMANY GMBH & CO. KG · DE

Inventors

Dieter Ehrke · Bielefeld, DE
Udo Hunkenschroeder · Bielefeld, DE

Key dates

Filing date	Jan 15, 2015
Grant date	May 15, 2018
Priority date	—
Expiry date	Jan 22, 2035

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16L19/0231
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A backlash-free plug-in connection for a pipe or hose line includes a threaded-connection body, a union nut, a pipe piece insertable into the threaded-connection body, and a securing ring supported against the pipe piece. Stepped recesses are provided for holding the securing ring. A gasket seals the pipe piece against the threaded-connection body. By pressurizing a medium flowing through the pipe or hose line, the pipe piece moves from an inserted position against an insertion direction to a locked position. A fixing ring abuts the securing ring and the gasket, and is supported between the pipe piece and a contact surface formed on the threaded-connection body or union nut. The contact surface is inclined and the gasket moves the fixing ring to a fixed position when the pipe piece moves to the locked position so that the pipe piece is fixed in place.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.