Abstract: This invention relates to a compression joint of the type used to connect the end of a piece of compressible pipe to a corporation fitting such as a curb stop, a main stop or a ball valve. The pipe is usually soft copper the wall of which is compressible, but it can be plastic and may, in the future, tend to be plastic rather than copper. The joint includes a nut threaded onto a sleeve; the nut and sleeve and an inserted pin forming a chamber which receives a split compression ring, a spacer tube, and a compressible gasket. The compression ring and gasket are urged into engagement with the pipe when the size of the chamber is reduced as the nut is threaded onto the sleeve.

Abstract: A bathtub stopper for closing the drain passage of a strainer cup of a bathtub according to the present invention consists of a main body portion which has first and second components adapted to telescope longitudinally with respect to one another between an extended position and a shortened position. The components are also rotatable with respect to one another about the longitudinal axis of the main body. The first component is manually engageable to be rotatably driven about the longitudinal axis and the second component is adapted to be secured to a strainer to locate the main body in an operative position with respect to the strainer. A closure means is carried by the first component for closing the drain passage when the main body is in the shortened position, the closure means being spaced from the strainer to open the drain passage when in the extended position.

Abstract: In a gasoline or like tank truck, a roll over valve is provided which permits opening of the emergency valve of the tank truck without opening the vent valve. The roll over valve is incorporated in the air lines extending between the source of compressed air and the emergency valve. The roll over valve includes a valve closure member movable between a first position in which the emergency valve is activated by the same air pressure source as the vent valve and a second position in which the emergency valve is adapted to be activated by an independent source of air without permitting the independent source to activate the vent valve.