Rasmussen Gmbh

Frank Bahner

Gerhard Wachter

Ralf Spors

Ralf Hohmann

Andreas Bauer

Stephan Mann

Gerhard Winterstein

Oliver Strauss

Uwe Wickel

Jürgen Böhm

A heating device includes an electrical heat source for heating a fluid in a fluid line of a motor vehicle, and a heat conducting device which is in connection with the heat source. The heat conducting device is connected with a hose clamp for connecting the heat conducting device to the fluid line. The heat conducting device may include a metal strip, the one end of which is in contact with the heat source and the other end is connected to the clamp. This metal strip facilitates the heat transfer from the heat source through the clamp to the fluid line.

Heating device with an electrical heat source for heating a fluid in a fluid line of a motor vehicle

A coupling device has a coupling receptacle and a matching coupling insert received in the coupling receptacle for connecting two components conveying a fluid. The coupling receptacle has two lateral, diametrically opposed slots and a U-shaped, elastic securing bracket seated on the coupling receptacle with two legs projecting into the lateral slots. The coupling insert has an outer peripheral securing rib and the legs of the securing bracket snap into place behind the securing ring in the coupling position of the coupling device. A securing bushing is arranged inside the coupling receptacle and faces a sealing ring with one end while the other end rests radially outwardly on the securing rib and projects past the lateral slots. The securing bushing has two transverse slots aligned with the two lateral slots, and the two legs of the securing bracket engage the two transverse slots of the securing bushing.

Coupling device of a plug-in coupling and plug-in coupling with such a coupling device

A coupling device which separably connects the end of a hose to the end of a pipe has a sleeve one end portion of which is connectable to the end of the hose and the other end portion of which has axially parallel resilient radially movable prongs serving to establish a form-locking connection with an external rib on the end of the pipe in response to insertion of the end of the pipe into the other end portion of the sleeve. A locking ring which is reciprocable on the sleeve between a retracted position and an operative position has axially parallel arms which overlie the prongs in the operative position of the ring. A C-shaped indicator of the condition of the form-locking connection has tongue-like male detent members which extend into sockets provided therefor in the prongs when the ring is held in the retracted position and the end of the pipe is not in form-locking engagement with the prongs of the sleeve. The detent members are expelled from their sockets in response to form-locking engagement between the pipe and the sleeve, and the indicator is thereupon displaced longitudinally of the sleeve in response to movement of the ring to its operative position.

Fluid coupling with condition indicator

A hose coupling wherein a sleeve is made of one piece with axially parallel elastic arms engageable with an external rib of a pipe which is inserted into one end portion of the sleeve. The other end portion of the sleeve is sealingly connected with and surrounds an end of a hose, and the sleeve is surrounded by a turnable or axially movable locking ring having prongs which are caused to bear against the adjacent arms so that the arms are urged against the rib. The sleeve has one or more elastic tongues which can snap behind the adjacent portion or portions of the locking ring to hold the ring in the operative position and to indicate that the ring is maintained in the operative position. The arms have internal grooves for reception of adjacent portions of the rib. The prongs are provided with internal projections which must ride over ramps and hurdles on the respective arms during translatory or angular movement of the locking ring to its operative position, and the arms are further provided with stops which arrest the respective projections when the ring reaches its operative position.

Hose coupling

A quick-release connector for a pair of conduits has a tubular male component which has a rear portion insertable into a first conduit, a front portion, an annular external protuberance between the front and rear portions, and several equidistance axially parallel disengaging members which cross the protuberance and have projections at their front ends. A tubular female component of the connector has a rear part which is insertable into the other conduit and a front part with equidistance axially parallel resilient arms, one for each disengaging member. The arms have internal detents which can engage a radial rear flank of the protuberance when the front portion of the male component is inserted into the front part of the female component. The detents can be disengaged from the rear flank of the protuberance in response to rotation of the two components relative to each other so that the detents ride onto the rear sections of the disengaging members behind the radial flank and can be moved axially toward but not over the projections. Complete disengagement of the two components is possible only when the detents are moved beyond the adjacent projections in the circumferential direction of the two components. Proper insertion of the male component into the female component is possible only when the projections can bypass the detents. The maximum width of each projection at least equals the maximum width of the rear section of the corresponding disengaging member.

Quick-release connector for hoses and the like

A quick-release connector wherein a tubular male component has a rear portion insertable into the end portion of a first conduit and a front portion insertable into the resilient front part of a tubular female component. The male component has an annular protuberance between the front and rear portions and the protuberance has a conical front flank and a radial rear flank. The rear part of the female component is insertable into the end portion of a second conduit and the front part has two arms with internal male detents within a ring which connects the front ends of the arms to each other. In order to insert the front portion of the male component, the conical flank of the protuberance is caused to move the detents apart until the detents snap behind the radial flank of the protuberance. An annular disengaging member has two parallel walls which are inwardly adjacent the arms behind the detents and have ramps which can be moved against the arms to thus move the detents apart and permit extraction of the protuberance and front portion of the male component from the female component. The disengaging member is more or less permanently connected with the female component and is movable transversely of the female component between a first end position in which the ramps deform the arms and a second end position in which the detents are free to engage the radial flank of the protuberance.

Growing community of inventors

Neu-Isenburg, Germany

Frank Bahner