Class / Patent application number | Description | Number of patent applications / Date published |
285379000 | Gasket retainer | 10 |
20100025992 | CRIMP EVIDENT SEAL - An O-ring has a flange which includes a plurality of slots, such that, when inserted into an annular groove of a pipe fitting before crimping, the slots allow the flow of fluid therethrough, such that an installation would not pass pressure tests until such time as a proper crimp has been made. Such a design allows the use of conventional push-on pipe connections by utilizing a unique O-ring seal which works in conjunction with standard push-on crimp-type pipe fittings and conventional crimping tools for subsequently sealing the connection. The O-ring is either circular or elliptical in cross section and the slots define equally spaced annular segments. | 02-04-2010 |
20100171308 | PLUMBING FITTING WITH O-RING SPACER - A fluid fixture has a body defining an inner peripheral bore to receive a tube. A securement member secures a tube within the body. The securement member is positioned within the inner peripheral bore of said body. A pair of O-rings are spaced along a central axis of the bore. An O-ring spacer is positioned intermediate the O-rings. The O-ring spacer has a nominal outer periphery which is smaller than an inner diameter of the inner peripheral bore. The nominal outer surface includes radially outwardly extending portions which are sized to be larger than the inner diameter of the bore, such that the portions contact the bore, and center the spacer. | 07-08-2010 |
20100259042 | ROTATABLE FIRE SPRINKLER FITTING WITH ELONGATED GASKET - A pipe fitting, useable in the installation of a sprinkler head, includes (a) a body having an open upstream end and an open downstream end, the downstream end having internal threads capable of accepting a threaded male fitting, the body defining an gasket retention area located upstream of the internal threads; and (b) an gasket disposed within the gasket retention area. The gasket retention area and the gasket are chosen so that a threaded male fitting threadedly disposed within the downstream end of the body can be rotated within the downstream end of the body 360° while remaining liquid tight for pressures in excess of 300 psig. | 10-14-2010 |
20100283240 | EXTERNALLY REPLACEABLE VACUUM CHAMBER TO CHAMBER FLANGE SEAL - A chamber interface sealing assembly includes first and second chambers with respective first and second mating walls disposed adjacent each other. The first and second mating walls have respective through holes, which are aligned to form a passage interconnecting the first and second chambers. A first flange extends outwardly from the first mating wall and away from the passage. A second flange extends outwardly from the second mating wall and away from the passage. The first and second flanges define a circumferential concave groove therebetween. A close-loop gasket is disposed within the circumferential concave groove. | 11-11-2010 |
20100308578 | Pipe Coupling with Multi-combed Self-pressurizing Seals - This invention relates to pipe coupling with multi-combed, self-pressurizing internal seals and an integral pipe fastening system to join and seal pipes of all sizes, fluid contents and line pressures. The invention embodies a coupling body, two pressure responsive seals installed in recessed seal grooves located at opposite outside edges of the pipe coupling body, and seal body consisting of a unidirectional fluid inlet and internal pressure responsive chamber and an external sealing surface comprised of several resilient, multi-combed and conjoined lips and fluid pockets which form a series of redundant seals around the outside axial surface of pipes joined within the coupling. Fluid escaping from the pipe juncture enters the internal pressure responsive chamber through the unidirectional orifice wherein trapped fluids expand the pliable external multi-combed seal surface against the axial surface of each pipe with corresponding force to prevent the outward flow of fluid from the pipe coupling. | 12-09-2010 |
20100327578 | COUPLING STRUCTURE FOR ABSORPTION REFRIGERATION CIRCUIT - An inexpensively manufactured coupling structure ( | 12-30-2010 |
20110031746 | ROTATABLE FIRE SPRINKLER FITTING WITH ELONGATED GASKET - A pipe fitting, useable in the installation of a sprinkler head, includes (a) a body having an open upstream end and an open downstream end, the downstream end having internal threads capable of accepting a threaded male fitting, the body defining an gasket retention area located upstream of the internal threads; and (b) an gasket disposed within the gasket retention area. The gasket retention area and the gasket are chosen so that a threaded male fitting threadedly disposed within the downstream end of the body can be rotated within the downstream end of the body 360° while remaining liquid tight for pressures in excess of 300 psig. | 02-10-2011 |
20120007358 | Gasket Retention System for Flange Coupling - A gasket retention system and flange coupling has a ring gasket that disposes in seal seats on opposing flanges. One or more retainer tabs extend from an outer periphery of the ring gasket. Preferably, the ring gasket defines a slot on the outer periphery, and the retainer tab affixes with an interference fit in the slot to be held therein. The retainer tab defines a transverse opening therethrough. When the ring gasket fits into the seal seat of one of the flanges, the transverse opening of the tab fits onto a fastener affixed in a pre-drilled hole in the face of the flange. | 01-12-2012 |
20120280497 | GASKET FOR PARABOLIC RAMP SELF RESTRAINING BELL JOINT - Gaskets for use with a bell and spigot coupling system are disclosed herein. The gasket comprises an elastomeric member having a front edge, a first section, and a second section. Axial forces generated by the insertion of the spigot to the first section of the elastomeric member displace the first section of the elastomeric member in an axial and radial direction. | 11-08-2012 |
20130313824 | EXTREME TEMPERATURE DEVICE FOR FLAT FACE SEAL FITTING - A metal seal replaces an O-ring seal in a flat face seal fluid fitting to adapt the flat face seal fluid fitting to use, for example, in extreme temperature applications. The fitting includes first and second fitting members, a sleeve, a nut and the seal. The seal may be removably attached to one of the fitting members by a plurality of retainers that extend into an O-ring channel of the fitting and cooperate with an O-ring retainer wall. | 11-28-2013 |