Rasmussen Gmbh

Bernd Kleinhens

Stephan Mann

Ralf Spors

Ralf Hohmann

Gerhard Wachter

Willi Stichel

Gerhard Winterstein

Siegmund Zeidler

Reiner Schreiter

Manfred Kruger

Olaf Kohlhaus

Erich Ruf

A push-fit connector for joining two fluid lines (1, 4), one of which is provided with a retaining rib (2), has a sleeve (5) with radial apertures (12, 13). A latching device (6) which can be inserted into the sleeve (5) has retaining arms each provided with a hook (20) for gripping behind the retaining rib (2) and a radially external inclined surface (21). When the sleeve (5) and latching device (6) move apart, the inclined surfaces (21) are compressed against a front edge of an aperture (12) receiving the hook (20) in an axially displaceable manner, so that the hook (20) stays correspondingly more tightly engaged with the retaining rib (2). When the latching device (6) and the inserted fluid line (1) are pulled apart, a radially internal inclined surface (23) of the hook comes into contact with the retaining rib (2) so that the retaining arms (18) are spread apart and make uncoupling possible. To facilitate uncoupling, the latching device (6) has at least one unlatching arm (19) between at least one pair of adjacent retaining arms (18), which unlatching arm projects outwards through an aperture (13) in the sleeve (5) in an axially displaceable manner.

Push-fit connector for joining two fluid lines

One end portion of a pipe, which has a circumferentially extending external bead at the one end portion, is insertable into the internal sockets of an array of arms which are axially movably received in one end portion of a sleeve. The arms have external surfaces which cooperate with an internal surface of the sleeve to permit limited axial movements of the arms between first and second positions. When in the first positions, the arms can be flexed radially outwardly to thus permit insertion of the bead into or its extraction from the sockets. The internal surface of the sleeve and/or the external surfaces of the arms can but need not be conical, either entirely or in part. The sleeve can be inserted into a bore or hole of a nipple on a radiator or carburetor in a motor vehicle. One or more O-rings or other suitable sealing elements are installed between the sleeve and the external surface of the one end portion of the properly installed pipe. The arms can be of one piece with a ring which is confined in the sleeve between the sealing element or elements and the arms.

Pipe coupling

A hose clip which comprises a flexible strap adapted to be placed around a selected portion of a hose and to be tightened around such selected portion by turning a bolt or screw. An elongated concavo-convex strip-shaped resilient insert is adjacent a portion of the internal surface and extends in the circumferential direction of the strap opposite the mechanism which serves to increase or reduce the effective length of the strap. The convex external surface of the insert is biased in a direction away from the adjacent portion of the internal surface of the strap by one or more springs which are disposed between the insert and the strap and are of one piece with the insert. At least one end of the insert is slidable along the strap. The spring or springs ensure that the strap does not become loose as a result of aging of the material of the adjacent portion of the hose.

Hose clip

Growing community of inventors

Gelnhausen, Germany

Bernd Kleinhens