U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method and device for repair and replacement of pipe broken at a junction

Patent 6976710 Issued on December 20, 2005. Estimated Expiration Date: Icon_subject January 21, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

658313

666316

796781

2232135

2823049

Pipe coupling
Patent #: 3971574
Issued on: 07/27/1976
Inventor: Curtin

Tube coupler
Patent #: 3976314
Issued on: 08/24/1976
Inventor: Graham

Repair kit for plastic pipe
Patent #: 4013309
Issued on: 03/22/1977
Inventor: Quick

Method of replacing plumbing
Patent #: 4038737
Issued on: 08/02/1977
Inventor: Bretone, Jr.

Fitting replacement method
Patent #: 4235259
Issued on: 11/25/1980
Inventor: Hudock

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Inventor

Application

No. 10347808 filed on 01/21/2003

US Classes:

285/15, REPAIR285/12, CONVERTIBLE285/16, Removable wear element285/17, Alternate wear parts285/31, Inserted section285/181, Serially connected, adjustable138/97, REPAIRING403/11, WITH ADJUNCTIVE PROTECTOR, BROKEN PARTS RETAINER, REPAIR, ASSEMBLY OR DISASSEMBLY FEATURE29/402.08, Replacing of defective part403/300, DISTINCT END COUPLER285/238, NONMETAL TO METAL29/890.14, Gas and water specific plumbing component making405/184, Advancing subterranean length of pipe or cable285/373, Longitudinally divided239/201, Embedded or buried sprinkler285/148.19, Diverse coupling interfaces403/171, Polyhedral285/179ELBOW

Examiners

Primary: Hewitt, James M.

Attorney, Agent or Firm

International Class

F16L055/18

Abstract

A method and device for repair and replacement of pipe broken at a junction. The device includes a coupler having a female end and a male end. The female end of the coupler has an inside diameter that will accept snugly the removed end of the broken pipe. The male end has an outside diameter that will snuggly fit into a new junction. The method and device is normally used with PVC pipe. When PVC pipe entering a junction is broken near the junction, the junction may be removed by cutting back from the broken PVC pipe and cutting the remaining pipe where it enters the junction. A new junction can be replaced with the coupler inlapping the new junction and overlapping the pipe.

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