Georg Fischer Rohrleitungssysteme Ag

Georg Fischer Haustechnik Ag

Georg Fischer Management Ag

Michael Bamberger

Erasmo Porfido

Peter Heer

Renato Pinardi

Erasmao Porfido

Bernd Kling

A quick-action coupling for coupling pipes includes a tubular inner part having an outer surface for supporting a pipe to be coupled; an inner sleeve and a clamping ring, each surrounding at least a portion of the tubular inner part for clamping the pipe to be coupled between the outer surface of the tubular inner part and the clamping ring; a toothed ring between the inner sleeve and the clamping ring; and an outer sleeve surrounding at least a portion of the inner sleeve, the toothed ring and the clamping ring, the outer sleeve comprises a cylindrical region having at least two inside diameters (d, d) and a conical region, wherein the clamping ring is received in the conical region.

Quick-release coupling for pipes

Adapter

In a connection between a pipe and a molding, a tubular housing, fixed on the molding, engages around the pipe with an inner wall tapering conically toward the free end of the housing. Arranged between the pipe and the housing inner wall is a clamping ring, which braces the pipe with the housing in a wedge-like manner. The clamping ring is held in its wedging functional position by a spring element acting on it in the axial direction. The spring element can be locked in a prestressed state without force acting on the clamping ring. To establish the connection between the pipe and the molding, a locking clip passing through the housing is pulled out of the housing to relax the spring element.

Connection between a pipe and a molding

A new and improved drain valve for use with plastic fluid flow components, such as pipes, conduits, fittings, joints and the like is provided. The drain valves include a thermoplastic housing which is directly attached by welding or heat-fusion bonding to a plastic line component or is molded in during the molding step for making the line component. Valving members are assembled to the plastic housing to provide for selective drainage of the plastic line components as desired. The new and improved drain valves permit incorporation of drain valves into plastic conduits and fluid flow systems in a sealed and secure manner substantially in the absence of secondary sealing members.

Drain valve

A fitting formed as a welding sleeve has, preferably, two heating elements and is provided in the region of the plug contacts with a plate which can be inserted into a recess. On the plate is arranged a resistor and the connections for measuring the ohmic resistance by means of a welding apparatus. By measuring the resistance, the type of the fitting can be identified and the current to be fed to the welding apparatus determined.

Growing community of inventors

Gailingen, Germany

Michael Bamberger