Class 285/232 - With conduit gripping means (e.g., wedge ring)

Subclass of Class 285 - Pipe joints or couplings
Definition: Devices in which a grasping element, e.g., a wedge ring,
No. of patents: 40
Last issue date: 02/12/2008

Number	Title	Issue Date
7328493	Self restrained fitting for PVC and ductile iron pipe A combination sealing and restraint system for an as-cast ductile iron fitting is shown for both sealing and preventing separation of an iron pipe fitting and a mating male pipe. The restraint system includes both a sealing ring and a combination gripping ring which...	02/12/2008
7293572	Cleaning equipment for cleaning a moving surface particularly in a paper machine Cleaning equipment for cleaning a moving surface particularly in a paper machine includes a washing head with a chamber in it opening onto the surface to be cleaned and nozzle elements arranged inside the chamber. The cleaning equipment also includes vacuum means an...	11/13/2007
7243954	Pipe joint with earthquake-proof function A pipe joint with earthquake-proof function is provided. A lock ring engages with an accommodating groove of a socket. A tapered surface converging toward the opening side of the socket is formed on at least one of a portion of the lock ring engaging the accommodati...	07/17/2007
7125054	Self restraining gasket and pipe joint A sealing and restraining gasket for preventing separation of a pipe joint used to join a bell end of a female pipe to the male end of a mating pipe. The gasket is formed from a compressible body of elastomeric material and carries a rigid ring with gripping teeth f...	10/24/2006
7090258	Sealing socket and method for arranging a sealing socket to a tube Sealing socket (1) and method for arranging a sealing socket to a tube (2). A sealing socket (1) includes a sleeve (3) having an outer dimension somewhat larger than the tube (2) to be sealed, defining an annular compartment (4	08/15/2006
6974160	Self restraining gasket and pipe joint A restraining element for preventing separation of a pipe joint used to join a bell end of a female plastic pipe to the male end of a mating pipe. The restraining element is formed from a compressible body of elastomeric material, the compressible body having a segm...	12/13/2005
6945570	Self restraining gasket and pipe joint A restraining element for preventing separation of a pipe joint used to join a bell end of a female plastic pipe to the male end of a mating pipe. The restraining element is formed from a compressible body of elastomeric material, the compressible body having a segm...	09/20/2005
6913292	Mechanical pipe coupling derived from a standard fitting A coupling for joining pipe segments together is disclosed. The coupling is derived from a standard fitting and has a housing with a socket and a first expanded region adjacent to the socket and a second expanded region adjacent to the first expanded region. A seali...	07/05/2005
6874822	Resinous tube A resinous tube has opposite ends into one of which a mating member is fitted and with which the mating member is connected, and includes a sealing ring, a fastening cap, and a clamp. The sealing ring is disposed on an inner peripheral surface of the opposite end, a...	04/05/2005
6805385	Non-detachable press fit arrangement between a fitting and an end portion of a metal pipe In a non-detachable press fit arrangement between an end portion of a metal pipe and a socket of a fitting, the socket defines an interior space and is formed with an annular anchoring groove which faces the interior space for receiving a sealing ring. The press fit...	10/19/2004
6773040	Spacer-less type pipe joint and packing ring used for the same A spacer-less type pipe joint comprises a press ring which has a protruding portion at its outer periphery and is fitted to an outer periphery of one end side of jointed pipe, a joint main body which has a protruding portion opposing the protruding portion of the pr...	08/10/2004
6692042	Profiled clamp and sleeve joint comprising such a profiled clamp A profiled clamp connecting two pipes has an articulated clamp strip having sidewalls and a transverse portion connecting the sidewalls and a tensioning closure around the clamp strip. A conical metal ring is arranged in the clamp strip and has a radially...	02/17/2004
6557825	Air admittance valve connector assembly A connector assembly for a plumbing appliance and for sealingly attaching an air admittance valve in a vent pipe. The connector assembly has an elastomeric sealing gasket with an interior threaded bore which is expanded by a rigid bottom portion of an air...	05/06/2003
6523865	High grip pipe connection and gasket A pipe connection includes a first having a male end and a second pipe having a female end and a gasket. The female end has a recess area sized to accept the gasket. The gasket has at least one flexible protrusion extending radially towards the center of ...	02/25/2003
6354634	Coupling device for joining pipes A coupling device for joining pipe ends has at least one pressing sleeve which can be slipped on a pipe end and pressed together with the pipe end. The pressing sleeve is elastically designed in the area of its inner surface pressed on the pipe end so tha...	03/12/2002
6161880	End fitting seal for flexible pipe An end fitting/pipe coupling in which to receive a flexible pipe end to be joined includes an annular seal of chevron configuration supported in the fitting for surrounding the received pipe end and is comprised of an elastomer composition defining a plur...	12/19/2000
6142484	Composite multi-pressure gasket A composite gasket for forming a seal between a pipe bell and a spigot comprises a first axially disposed portion formed of an elastomeric material and has a first leading edge and a first trailing edge, and a second axially disposed portion, adjacent the...	11/07/2000
6062611	Locked pipe joint and split metal retaining ring therefor A locked pipe joint between a socket (3) of a first pipe (4), and a smooth end (1) of a second pipe (2) inserted in the socket with the interposition of an annular sealing gasket (5). The joint includes a raised bead (6) integral with the smooth end, a sp...	05/16/2000
5360218	Pipe socket joint and sealing gasket therefor A socket joint for pressurized fluid carrying pipes incorporates a radially-compressed gasket 4 locked in position by toothed inserts 12 each having an inclined face 27 which slides on and bears against a similarly inclined face 26 of a support insert 11 ...	11/01/1994
5297826	Locking joint for pipe systems A socket joint for ductile cast iron pipes is locked by toothed locking ring inserts 15 and a counter-flange 11. At least one elastic lip 19 is inserted between the locking ring and the rear face of a rigid stop ring which encloses the smooth or male end ...	03/29/1994
5269569	Bell lip restraining configuration for pressure pipe A wall at one end of a chamber in the bell end of an enclosing pipe is adapted to receive the nose end of toothed metal segments to prevent disengagement of pipes and to transfer radial forces into axial forces....	11/23/1993
5248168	Flexible quick disconnect coupling with vibration absorbing member A vibration absorbing, noise attenuating connector utilizing threadless coupling connecting means including a quick disconnect feature for use in hydraulic, pneumatic and refrigeration conduit systems....	09/28/1993
5197768	Restrained joint having elastomer-backed locking segments A pipe joint and a locking member for use with the pipe joint are provided for a bell and spigot type joint, the locking member being a separate element disposed axially outwardly of a fluid seal gasket within the bell end of a first of the pipe elements,...	03/30/1993
5150929	Pipe joints A pipe joint consists of a sleeve (2) surrounding a socket chamber (3) for receiving a spigot (5). A gland (9) extends into the socket chamber (3) against a heel portion (12) of a sealing ring (7). Axial movement of the gland (9) forces the sealing ring (...	09/29/1992
5067751	Gasket for field adaptable push-on restrained joint and joint thus produced A self-actuating restraining gasket having optional integral sealing means is provided which is used particularly in bell-and-spigot pipe joints or joints employing pipe appurtenances, and more particularly in joints to be assembled in the field, the bell...	11/26/1991
4863199	Separation preventive pipe joint The inner surface of the open end of a socket for a pipe is formed with a taper portion and a lock ring is received on the inner periphery of the taper portion. The outer peripheral portion of the socket corresponding to the taper portion is tapered in th...	09/05/1989
4805932	Joint secured against sliding A spigot-and-socket joint which is secured against pulling apart, particularly for socket pipes manufactured by centrifugal casting or molding, wherein the spigot end of one pipe is pushed into the socket end of another pipe, with radial play, comprises a...	02/21/1989
4699405	Coupling for coupling tubular members A coupling for forming a sealed engagement with a tubular member, the coupling comprising an annular housing having an engagement zone for receiving a tubular member to be engaged by the coupling, and comprising an engagement assembly positioned within th...	10/13/1987
4676533	Reversible lock and seal apparatus A reversible lock and seal apparatus for coupling swimming pool piping and fittings, comprising a frusto-conical U-cross section metal ring with longitudinally spaced circular rows of teeth, adapted to be cammed into piping by a follower coupled to the fi...	06/30/1987
4602792	Dual function gasket with dual lips and optional locking ring A dual function gasket adapted for insertion into a suitable groove formed in the bell of an associated pipe includes an annular gasket body made of a resilient material. The body terminates radially inwardly in a leading lip and a pressure activated seal...	07/29/1986
4432571	Retainer gland for mechanical joint pipe A retainer gland and gland assembly for mechanical joint pipe. The retainer gland has at least one hinge arm extending axially from a side of a flat ring flange portion on the opposite side of the flange ring from a circular rib gland portion. The hinge a...	02/21/1984
4342464	Gasket for a socket-spigot connection A gasket for a socket-spigot connection between a socket end and a spigot end of two pipes to be connected is made of a material stable as to its shape and adapted to carry at its inner radial side at least one resilient sealing ring and at its outer radi...	08/03/1982
4326569	Stopcock seal A seal for limiting access of bacteria through a side arm of a stopcock such as that used in apparatus for monitoring pressure in a human blood vessel. The seal has a generally cylindrical body, an open end of which slides over the side arm. A portion of ...	04/27/1982
4303262	Large diameter pipe joint with means for distributing tensile forces A large diameter pipe joint in which the male end and the female mouth end have respective opposite load bearing surfaces 5, 22 between which are arranged bracing means capable of evenly distributing tensile forces over the whole periphery of the joint by...	12/01/1981
4209179	Pipe joint seal The specification discloses a pressure responsive pipe joint seal for sealing connecting pipe joint members. The sealing flanges on the seal define upwardly, outwardly and downwardly curved upper surfaces so that there is less tendency for them to get cau...	06/24/1980
4183560	Arrangement for making a spigot-and-socket joint secure from sliding A spigot and socket connection of the type which comprises a pipe end held within a socket by means of a retaining ring includes a device for securing the connection against sliding of the components. This device comprises a sleeve-like securing element l...	01/15/1980
4116473	Pipe coupling A pipe coupling, e.g. for use in irrigation pipelines, having releasably connectable male and female coupling coupling elements which are connected so as to be able to swing relative to each other about either or both of two axes extending transversely of...	09/26/1978
4102472	O-rings for vehicle fuel tank filler neck caps Resilient O-ring seals for caps for closing vehicle fuel tank filler necks, the fuel caps having shank portions extending into the necks. The radial width of the annular space between the inner wall of such a neck and the outer wall of the shank is less t...	07/25/1978
4072245	Filler neck cap with O-ring seal A resilient O-ring seal for an annular space between a first radially inner surface and a second radially outer surface. The radial width of the annular space is less than the radial dimension of the O-ring. The O-ring includes an annular, radially outwar...	02/07/1978

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Class 285/232 - With conduit gripping means (e.g., wedge ring)