IP Library › Granted Patent US 7,137,653
Granted Patent B2
US 7,137,653 · App. 10/950,263 · Granted Nov 21, 2006

Centroidally twistable compression ring for pipe joints

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,137,653
App. No.
10/950,263
Granted
Nov 21, 2006
Kind
B2
Abstract

A locking ring designed to work in a self restraining pipe joint. This locking ring is designed (which may include attention to a combination of shape and material properties) to twist when exposed to a concentrated load and thereby distribute this load across broader area of the pipe joint to increase the thrust restraining capabilities of the joint

Claims (10)

1. A pipe joint comprising

a. A first pipe comprising a pipe bell and a bell groove disposed annularly within the pipe bell, said bell groove being bounded on an axially outward side by a bell thrust surface,

b. A second pipe comprising a pipe spigot and a weld bead located on the pipe spigot, said pipe spigot located partially within the pipe bell in a position in which the weld bead is further, by an axially measured distance, within the pipe bell than is the bell thrust surface, wherein the pipe spigot is radially separated from the pipe bell at a location around the pipe spigot periphery by an annular gap, and

c. A locking ring being located between and in substantially continuous contact with the bell thrust surface and with the weld bead, which bell thrust surface and weld bead are separated by a gap having different measurements when measured at different locations in the pipe joint,

in which the locking ring twists in response to angular displacement of an axis of the first pipe from an axis of the second pipe.

2. A pipe joint comprising

a. A first pipe comprising a pipe bell and a bell groove disposed annularly within the pipe bell, said bell groove being bounded on an axially outward side by a bell thrust surface,

b. A second pipe comprising a pipe spigot and a weld bead located on the pipe spigot, said pipe spigot located partially within the pipe bell in a position in which the weld bead is further, by an axially measured distance, within the pipe bell than is the bell thrust surface, wherein the pipe spigot is radially separated from the pipe bell at a location around the pipe spigot periphery by an annular gap, and

c. A locking ring being located between and in substantially continuous contact with the bell thrust surface and with the weld bead, which bell thrust surface and weld bead are separated by a gap having different measurements when measured at different locations in the pipe joint,

in which the locking ring twists in response to radial displacement of an axis of the first pipe from an axis of the second pipe.

Assignments (19)
PATENT SECURITY AGREEMENT Recorded Feb 10, 2025
From: BEST BLOCK, LLC; CONTECH ENGINEERED SOLUTIONS LLC; CUSTOM BUILDING PRODUCTS, LLC; FORTERRA CONCRETE PRODUCTS, LLC; FORTERRA PIPE & PRECAST, LLC; KEYSTONE RETAINING WALL SYSTEMS LLC; PAVESTONE, LLC; THE QUIKRETE COMPANIES, LLC; UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; USP HOLDINGS, LLC
To: U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 070170/0919 →
PATENT SECURITY AGREEMENT (ABL) Recorded Mar 23, 2022
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC; CUSTOM FAB, INC.; BIO CLEAN ENVIRONMENTAL SERVICES, INC.; MODULAR WETLAND SYSTEMS, INC.; FORTERRA PIPE & PRECAST, LLC; FORTERRA CONCRETE PRODUCTS, INC.; FORTERRA PRECAST CONCEPTS, LLC; BEST BLOCK, LLC; PAVESTONE, LLC; CONTECH ENGINEERED SOLUTIONS LLC; KEYSTONE RETAINING WALL SYSTEMS LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 059479/0336 →
PATENT SECURITY AGREEMENT (ABL) Recorded Mar 23, 2022
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC; CUSTOM FAB, INC.; BIO CLEAN ENVIRONMENTAL SERVICES, INC.; MODULAR WETLAND SYSTEMS, INC.; FORTERRA PIPE & PRECAST, LLC; FORTERRA CONCRETE PRODUCTS, INC.; FORTERRA PRECAST CONCEPTS, LLC; BEST BLOCK, LLC; PAVESTONE, LLC; CONTECH ENGINEERED SOLUTIONS LLC; KEYSTONE RETAINING WALL SYSTEMS LLC
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 059479/0437 →
RELEASE OF SECURITY INTEREST Recorded Mar 21, 2022
From: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS COLLATERAL AGENT
To: FORTERRA PIPE & PRECAST, LLC; UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC; CUSTOM FAB, INC.; BIO CLEAN ENVIRONMENTAL SERVICES, INC.; FORTERRA PRECAST CONCEPTS, LLC; MODULAR WETLAND SYSTEMS, INC.; FORTERRA CONCRETE PRODUCTS, INC.
Reel/Frame 060199/0286 →
RELEASE OF ABL SECURITY INTEREST IN INTELLECTUAL PROPERTY RECORDED AT REEL 041225/FRAME 0793 Recorded Mar 21, 2022
From: BANK OF AMERICA, N.A.
To: FORTERRA PIPE & PRECAST, LLC; FORTERRA PRESSURE PIPE, INC.; FORTERRA CONCRETE PRODUCTS, INC.; UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC; CUSTOM FAB, INC.; BIO CLEAN ENVIRONMENTAL SERVICES, INC.; MODULAR WETLAND SYSTEMS, INC.
Reel/Frame 060205/0101 →
RELEASE OF SENIOR LIEN SECURITY INTEREST IN INTELLECTUAL PROPERTY RECORDED AT REEL 040775/FRAME 0692 Recorded Mar 18, 2022
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: FORTERRA PIPE & PRECAST, LLC; FORTERRA PRESSURE PIPE, INC.; FORTERRA CONCRETE PRODUCTS, INC.; UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC; CUSTOM FAB, INC.; BIO CLEAN ENVIRONMENTAL SERVICES, INC.; MODULAR WETLAND SYSTEMS, INC.
Reel/Frame 059437/0967 →
SECURITY INTEREST Recorded Mar 18, 2022
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC
To: WELLS FARGO BANK, N.A., AS AGENT
Reel/Frame 059314/0075 →
SECURITY AGREEMENT (NOTES) Recorded Jul 16, 2020
From: BIO CLEAN ENVIRONMENTAL SERVICES, INC.; FORTERRA CONCRETE PRODUCTS, INC.; GRIFFIN PIPE PRODUCTS COMPANY, LLC; MODULAR WETLAND SYSTEMS, INC.; UNITED STATES PIPE AND FOUNDRY COMPANY, LLC
To: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS NOTES COLLATERAL AGENT
Reel/Frame 053229/0924 →
SECURITY INTEREST Recorded Dec 30, 2016
From: FORTERRA PIPE & PRECAST LLC (F/K/A HANSON PIPE & PRECAST LLC); FORTERRA PRESSURE PIPE, INC. (F/K/A PRICE BROTHERS COMPANY); UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; FORTERRA CONCRETE PRODUCTS, INC. (F/K/A CRETEX CONCRETE PRODUCTS, INC.); BIO CLEAN ENVIRONMENTAL SERVICES, INC.; MODULAR WETLAND SYSTEMS, INC.
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 041225/0793 →
SENIOR LIEN INTELLECTUAL PROPERTY SECURITY AGREEMENT Recorded Nov 30, 2016
From: FORTERRA PIPE & PRECAST, LLC; FORTERRA PRESSURE PIPE, INC.; FORTERRA CONCRETE PRODUCTS, INC.; UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC; CUSTOM FAB, INC.; BIO CLEAN ENVIRONMENTAL SERVICES, INC.; MODULAR WETLAND SYSTEMS, INC.
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 040775/0692 →
RELEASE AGREEMENT Recorded Nov 29, 2016
From: CREDIT SUISSE AG, AS ADMINISTRATIVE AGENT
To: FORTERRA PIPE & PRECAST LLC; FORTERRA PIPE & PRECAST LLC (F/K/A HANSON PIPE & PRECAST LLC); FORTERRA PRESSURE PIPE, INC. (F/K/A HANSON PRESSURE PIPE, INC.); FORTERRA CONCRETE PRODUCTS, INC. (F/K/A CRETEX CONCRETE PRODUCTS, INC.); UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; CUSTOM FAB, INC.; GRIFFIN PIPE PRODUCTS CO., LLC
Reel/Frame 040707/0521 →
RELEASE AGREEMENT Recorded Nov 29, 2016
From: CREDIT SUISSE AG, AS ADMINISTRATIVE AGENT
To: FORTERRA PIPE & PRECAST LLC; FORTERRA PIPE & PRECAST LLC (F/K/A HANSON PIPE & PRECAST LLC); FORTERRA PRESSURE PIPE, INC. (F/K/A HANSON PRESSURE PIPE, INC.); FORTERRA CONCRETE PRODUCTS, INC. (F/K/A CRETEX CONCRETE PRODUCTS, INC.); UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; CUSTOM FAB, INC.; GRIFFIN PIPE PRODUCTS CO., LLC
Reel/Frame 040707/0337 →
SECURITY INTEREST Recorded Jun 1, 2016
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; GRIFFIN PIPE PRODUCTS CO., LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 038854/0922 →
SECURITY AGREEMENT Recorded May 16, 2016
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; CUSTOM FAB, INC.; GRIFFIN PIPE PRODUCTS CO., LLC
To: CREDIT SUISSE AG, AS ADMINISTRATIVE AGENT
Reel/Frame 038710/0410 →
SECURITY AGREEMENT Recorded May 16, 2016
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC; CUSTOM FAB, INC.; GRIFFIN PIPE PRODUCTS CO., LLC
To: CREDIT SUISSE AG, AS ADMINISTRATIVE AGENT
Reel/Frame 038710/0690 →
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT REEL 027977/FRAME 0086 Recorded Apr 20, 2016
From: WELLS FARGO CAPITAL FINANCE, LLC
To: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC
Reel/Frame 038709/0636 →
RELEASE OF SECURITY INTEREST Recorded Apr 18, 2016
From: SJC DLF II-B, LLC
To: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC
Reel/Frame 038303/0507 →
SECURITY AGREEMENT Recorded Jul 24, 2013
From: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC
To: SJC DLF II-B, LLC
Reel/Frame 030888/0502 →
RELEASE OF SECURITY INTEREST Recorded Apr 24, 2012
From: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
To: UNITED STATES PIPE AND FOUNDRY COMPANY, LLC
Reel/Frame 028099/0372 →