Patent classifications
F16L37/0845
Method of joining pipes and fittings with mechanical restraint members
A method for joining a first conduit section having a longitudinally extending open first end and an inner surface with a second conduit section having a longitudinally extending end and an outer surface is provided. The method comprises: a) inserting a first end of the second conduit section in the open first end of the first conduit section and forming a fluid tight seal between the first and second conduit sections; and, b) bonding at least a portion of the inner surface of the first conduit section to at least a portion of the outer surface of the second conduit section.
Sealing and Restraining Gasket for Use in Plastic Pipelines
A pipe joining system and pipe joint are shown in which two sections of plastic pipe, particularly molecularly oriented pipe, are joined. A ring-shaped elastomeric body is installed within a mating groove provided in a mouth region of female pipe section. The ring-shaped body is formed of an injection molded elastomeric material which is joined to a series of arcuate gripping segments which have teeth on an inner surface thereof which are designed to engage an outer surface of a mating male pipe section to restrain movement of the male pipe after assembly of a pipe joint. The gripping segments are separated by a gap which is open prior to assembly, but which closes during assembly. Each of the segments also has a positive stop feature to prevent over travel of the male pipe section relative to the female pipe section.
Restrained plastic pipe joint and method of making same
A gasket for preventing the separation of a pipe joint formed between plastic pipes such as pipes manufactured from PVC. The invention provides a restrained pipe joint including a first pipe including a bell with a spigot entryway and a substantially V-shaped annular groove. The annular groove includes a front radial wall and a rear radial wall and a gasket seated in the annular groove. The gasket includes an inner radial face, an opening defined by the inner radial face and an outer radial face with a front radial section located adjacent to the front radial wall of the annular groove and a rear radial section located adjacent to the rear radial wall of the annular groove. A plurality of restraining segments is at least partially embedded in the gasket, each restraining segment including a toothed inner face and a smooth, sliding front radial face arranged to slide against the front radial wall of the annular groove and facilitate wedging of the segment between the plastic pipes.
Sealing gasket with corrugated insert for sealing restrained or non-restrained plastic pipelines
A pipe sealing gasket is shown which is designed to be received within a raceway provided within a socket end of a female bell plastic pipe end which is assembled with a mating male spigot pipe end to form a plastic pipe joint. The raceway in the female bell plastic pipe end is preformed during manufacture and the gasket is installed thereafter. The gasket has a rubber body portion which is reinforced by a hard corrugated ring-shaped insert. The hard corrugated ring-shaped insert acts to prevent extrusion of the gasket during a variety of pressure conditions as well as preventing displacement during field assembly.
HOSE COUPLING ASSEMBLY
A hose coupling assembly includes a male stem, a ferrule, and a retainer for coupling the ferrule to the male stem. The male stem may include an elongated body with a latch groove, and the ferrule may include a latch. The retainer may be disposed on the male stem and may be configured to couple the ferrule to the male stem such that the latch is aligned with the latch groove. A method of assembling a hose coupling assembly may include contacting an inner surface of a retainer with a shoulder of a male stem; deflecting, via the shoulder, a retention feature of the retainer; aligning a portion of the retention feature with a latch groove of the male stem; contacting a latch of a ferrule with an outer surface of the retention feature; deflecting, via the latch, the retention feature; and aligning the latch with the latch groove.
RESTRAINED GASKET FOR PLASTIC PIPES
A gasket for preventing the separation of a pipe joint formed between plastic pipes such as pipes manufactured from PVC. The invention provides an internally restrained pipe joint including a bell with a substantially V-shaped annular groove. The annular groove includes a front radial wall and a rear radial wall and a gasket seated in the annular groove. The gasket includes an inner radial face, an opening defined by the inner radial face and an outer radial face with a front radial section located adjacent to the front radial wall of the annular groove and a rear radial section located adjacent to the rear radial wall of the annular groove. A plurality of toothed, rigid restraining segments is at least partially embedded in the gasket.
Restrained plastic pipe joint and method of making same
A gasket for preventing the separation of a pipe joint formed between plastic pipes such as pipes manufactured from PVC. The invention provides a restrained pipe joint including a first pipe including a bell with a spigot entryway and a substantially V-shaped annular groove. The annular groove includes a front radial wall and a rear radial wall and a gasket seated in the annular groove. The gasket includes an inner radial face, an opening defined by the inner radial face and an outer radial face with a front radial section located adjacent to the front radial wall of the annular groove and a rear radial section located adjacent to the rear radial wall of the annular groove. A plurality of restraining segments is at least partially embedded in the gasket.
SYSTEM, METHOD AND APPARATUS FOR DEBRIS SHIELD FOR SQUEEZE-ACTIVATED RETAINER FOR A CONDUIT
An assembly includes a tubular body having an axis, an axial end, a bore that is axial an aperture and a retainer groove formed in the bore and contiguous with the aperture. The assembly also includes a retainer mounted in the retainer groove. The retainer has a debris shield located external to the tubular body. The retainer includes a nominal configuration wherein the debris shield is configured to close off access to the aperture and the retainer groove to prevent debris from accumulating therein. In addition, the retainer includes an expanded configuration wherein the debris shield is not configured to completely close off access to the aperture and the retainer groove.
HEAT TRANSFER INTERRUPTION FOR IMPROVED FIRE RESISTANCE/PROOF PERFORMANCE
A fluid coupling includes a first adapter having at least one seal groove in an inner diameter surface of the first adapter, and at least one interruption in the inner diameter surface adjacent to the at least one seal groove. The fluid coupling may include a second adapter having an outer diameter surface engaging with at least a portion of the inner diameter surface of the first adapter to form a conductor path between the first adapter and the second adapter. The fluid coupling may further include at least one seal disposed in the at least one seal groove to provide a sealed connection between the first adapter and the second adapter. The at least one interruption may be configured to interrupt the conductor path in a region around the at least one seal.