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AssigneeMunro & Company, Inc.
InventorsBenoit Tanguay, John Siervogel, Greg Sebastiano
Estimating the term…
A pipe connection and pipe and fittings to make a pipe connection that include either a bell plate ring or a complementary spigot ring, which can be readily joined together by welding to form a sealed joint. In particular the bell plate ring includes a tapered, such as a conical section, that has a larger outer diameter (that is closer to the end of the pipe section or fitting) and a smaller diameter in from said end of said pipe section or fitting. In this way the present invention provides an inner bell surface which is generally continuously tapered. In turn a complementary spigot ring is provided with a welding lip having an outer diameter that is between the larger and smaller diameters of the bell plate ring. In this way, when the spigot is inserted into the bell it is first guided by the taper and then an interference fit is made between the welding lip and the bell, which ensure continuous weldable contact between the spigot and the bell. A seal protects the weldable contact from contamination before the weld is made.
A pipe connection to form a liquid tight seal between two tubulars having confronting ends, one of which may be inserted into the other, said pipe connection comprising tapered a bell plate fixed inside of one of said tubulars, said bell plate having an inside surface defining opening having a larger area towards an end of said tubular and a smaller area spaced inwardly from said end, a spigot ring fixed to the other of said tubulars, said spigot ring including an annular welding lip defining an area which is sized to be between said larger area and said smaller area of said tapered bell plate, said annular welding lip being spaced towards an end of said other tubular, and a seal spaced inwardly of said annular tubing lip on said other tubular, said seal being sized and shaped to seal against said tapered bell plate when said annular welding lip contacts said tapered bell plate, said seal inhibiting foreign matter from passing past said seal, wherein when said other tubular is inserted into said one of said tubulars an interference fit is achieved causing substantially continuous annular weldable contact between said annular welding lip and said tapered portion of said bell ring to facilitate forming a weld along said substantially continuous annular weldable contact.
A tubular for joining to another tubular in a liquid tight joint, the tubular comprising:
A method of field forming a liquid tight seal between two tubulars, the method comprising:
Dependencies are inferred from the claim text.