Perfection Corporation

Irvin D Jacobson

Frank R Volgstadt

David P Passerell

Carl E Passerell

The gas riser connects underground natural gas service lines, particularly plastic service lines, with above ground meters and the like. The riser includes a conduit or plastic tube which has first and second ends. An annular collar is swaged onto the exterior of the conduit adjacent its first end. An annular resilient seal frictionally engages the exterior of the conduit abutting the annular collar. A retaining ring is slidably disposed on the exterior of the conduit abutting the resilient seal. A connector is integrally affixed to the second end of the conduit for connecting it to a service line. A tubular element or iron pipe has an internal bore, an annular projection into the internal bore, a tapered portion adjacent the projection, and threads at one end for connecting it with the meter. The first end of the conduit is disposed in the internal bore with the retaining ring engaging the annular projection, the resilient seal engaging the tapered portion, and the annular collar pressed into engagement with the tapered portion and compressing the resilient seal against the retaining ring, the O.D. of the conduit and the I.D. of the iron pipe.

Gas riser apparatus

The angle cock valve has all plastic parts to prevent galvanic corrosion when used in hot water tanks and the like. The valve includes a valve body, a valve stem and a stem retainer. The valve body has an inlet bore, an outlet bore, and a valve stem receiving bore disposed in fluid communication with each other. The inlet and valve stem receiving bores taken together form a linear bore for allowing a rod to pass into the water tank to dislodge accumulated sediment. An annular seat is disposed between the inlet and outlet bores. The valve stem has an enlarged handle portion at one end and a detent for mounting a seat seal at the other end. The valve stem and the stem receiving bore are threaded to enable the seat seal to be selectively moved longitudinally against the annular seat. A pair of annular ridges receive an annular seal. Facing the handle portion, the ridges have a generally transverse surface. The stem retainer is mounted on the exterior of the valve body. It has a projection which extends through an aperture into the valve stem receiving bore for selectively engaging the transverse surface to limit longitudinal movement of the valve stem. A spring segment resiliently urges the projection into the aperture. A grip portion enables the spring segment to be flexed and the projection withdrawn from the aperture. When the projection is withdrawn, the valve stem may be removed from the valve stem receiving bore.

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Bratenahl, OH, United States of America

Irvin D Jacobson