Patents Assigned to The Harrington Corporation
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Patent number: 11306856Abstract: A push joint adapter is connectable to one or more push joint pipe fittings in a pipeline. The push joint adapter includes an insertion section insertable into a socket of a push joint pipe fitting in an interference fit, a pipeline section connectable with the pipeline, and a collar disposed between the insertion section and the pipeline section. A restraint ring assembly cooperable with the push joint pipe fitting includes a restraint ring secured to the pipeline section and engaging the collar and a restraint rod connected to the restraint ring. The push joint adapter facilitates connecting push joint gasketed bell gate valves and fittings in a pipeline such as a polyethylene pipeline.Type: GrantFiled: March 2, 2018Date of Patent: April 19, 2022Assignee: THE HARRINGTON CORPORATIONInventors: Sean Brian Routon, John Preston Riordan, John Emmett Riordan, III
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Patent number: 7552949Abstract: A joint restraint includes a split ring terminating in radially outwardly extending flanges. A shell includes a cylindrical sleeve, an annular flange at one end and arms projecting generally tangentially for securement behind lugs on a standard bell end of a fitting. With the split ring disposed within the shell and flanges projecting through a radial opening through the shell, a pipe end may be inserted through the joint restraint into the bell. By compressing the split ring about the pipe end by drawing the flanges toward one another and bolting them in place, relative axial movement of the pipe end and fitting is precluded by engagement of the shell flange and split ring.Type: GrantFiled: November 14, 2005Date of Patent: June 30, 2009Assignee: The Harrington CorporationInventors: John E. Riordan, III, Sean B. Routon
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Patent number: 7255124Abstract: The quick coupler anchor includes an anchor body having a pair of vertical plates extending generally at right angles one to the other and spaced from one another. Planes containing the plates, when extended, intersect along a vertical line offset from the center axis of a valve received in a recess in a member connecting upper edges of the vertical extending plates. The recess has a plurality of flats for registration with the flats of the hex nut of the valve body. When the anchor is embedded in the ground with the recess about the hex nut, the anchor restrains rotational movement of the valve relative to the anchor in response to a torque applied to the valve to open or close the valve. The center of vertical support of the anchor lies generally coincident with the vertical axis of the valve to provide stability to the valve and anchor upon vertical loadings.Type: GrantFiled: September 25, 2003Date of Patent: August 14, 2007Assignee: The Harrington CorporationInventors: John Emmett Riordan, III, Sean Brian Routon
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Patent number: 7055865Abstract: A service tee forming part of a main fluid line has a laterally extending female fitting with threads and a gasket spaced axially from the distal end of the threads. A male fitting having a series of male threads and a cylindrical extension terminating in the distal end of the male fitting is threadedly coupled to the female fitting. The threads are non-tapered and cylindrical. A mechanical connection between the male and female fittings is provided by the engagement of the threads, while the seal is formed between the gasket and the extension, thereby enabling orientation about the common axes of the fittings relative to one another for a full 360°.Type: GrantFiled: October 23, 2003Date of Patent: June 6, 2006Assignee: The Harrington CorporationInventors: John Emmett Riordan, III, Sean Brian Routon
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Publication number: 20050087982Abstract: A service TEE forming part of a main fluid line has a laterally extending female fitting with threads and a gasket spaced axially from the distal end of the threads. A male fitting having a series of male threads and a cylindrical extension terminating in the distal end of the male fitting is threadedly coupled to the female fitting. The threads are non-tapered and cylindrical. A mechanical connection between the male and female fittings is provided by the engagement of the threads, while the seal is formed between the gasket and the extension, thereby enabling orientation about the common axes of the fittings relative to one another for a full 360°.Type: ApplicationFiled: October 23, 2003Publication date: April 28, 2005Applicant: THE HARRINGTON CORPORATIONInventors: John Riordan, Sean Routon
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Publication number: 20050067018Abstract: The quick coupler anchor includes an anchor body having a pair of vertical plates extending generally at right angles one to the other and spaced from one another. Planes containing the plates, when extended, intersect along a vertical line offset from the center axis of a valve received in a recess in a member connecting upper edges of the vertical extending plates. The recess has a plurality of flats for registration with the flats of the hex nut of the valve body. When the anchor is embedded in the ground with the recess about the hex nut, the anchor restrains rotational movement of the valve relative to the anchor in response to a torque applied to the valve to open or close the valve. The center of vertical support of the anchor lies generally coincident with the vertical axis of the valve to provide stability to the valve and anchor upon vertical loadings.Type: ApplicationFiled: September 25, 2003Publication date: March 31, 2005Applicant: THE HARRINGTON CORPORATIONInventors: John Riordan, Sean Routon
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Patent number: 5464257Abstract: A pipe fitting coupling has a generally ring-shaped body with two pairs of diametrically opposed radially outwardly projecting lugs spaced 90.degree. one from the other. The coupling is interposed between the bells of pipe fittings to be joined, with each bell having only a pair of misaligned diametrically opposed lugs. The lugs on the coupling align with the misaligned lugs of the pipe fittings and restraints are disposed about the aligned lugs to secure the pipe fittings to one another.Type: GrantFiled: October 31, 1994Date of Patent: November 7, 1995Assignee: The Harrington CorporationInventors: Gordon S. Riddles, Jerry O. Burke
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Patent number: D998108Type: GrantFiled: August 26, 2021Date of Patent: September 5, 2023Assignee: THE HARRINGTON CORPORATIONInventors: Isaac Dixon Wood, Luther Harvey Tanner, III