“Corrugated thick-walled pipe for use in wellbores”
Adjustable tubular wall structure for connectors and the like
Adjustable tubular wall structure for connectors and the like
Apparatus for connecting a branch duct to another duct
Apparatus for the flexible connection of pipes in exhaust lines
Arrangement in rain-water drains or manholes
Ball joint
Ball joint apparatus and method of fabrication
Bearing seal for universal ball joint
Bellows for a compensator and compensator pertaining thereto...
Bellows for connecting hoses or apparatus for operation in a vac
Bellows sealed ball joint
Bellows with rotational joints
Bellows with screw thread folds and lug and slot end connectors
Belt type expansion joints
Cardan-type pipe joint with compensation for longitudinal expans
Collapse resistant popoid connector
Connecting member for exhaust pipe
Connection between a building component and a pipe-shaped line e
Convoluted fluid connector assembly with hardened end portion