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1957-07-05 |
1961-07-04 |
American Cast Iron Pipe Co |
Pipe coupling having a double sealing action gasket
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1958-11-19 |
1962-06-26 |
Mannesmann Ag |
Pipe joints
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DE1170205B
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1959-03-04 |
1964-05-14 |
Halbergerhuette G M B H |
Abdichtung fuer Muffenrohrverbindungen
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DE1165359B
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1960-01-25 |
1964-03-12 |
Halbergerhuette Ges Mit Beschr |
Muffenrohrverbindung mit einem vor Herstellen der Rohrverbindung in die Muffe eingelegten Dichtungsring
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1960-03-22 |
1965-12-21 |
Nationale Sa |
Fluid-tight seal
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NL277956A
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1961-05-30 |
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DE1272059B
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1963-11-18 |
1968-07-04 |
Kabel Und Gummiwerke Anonyme G |
Gleitende Verbindung fuer Kunststoffrohre
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1964-10-21 |
1968-11-05 |
Pettibone Mulliken Corp |
Bearing seal structure
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1964-11-16 |
1967-06-13 |
Woodward Iron Company |
Pipe joint packing
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1966-09-16 |
1968-07-02 |
Clow Corp |
Push-joint and gasket for cast pipe
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1967-01-31 |
1968-09-10 |
Jack L. Brown |
Pipe coupling
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1967-03-03 |
1969-02-25 |
Dresser Ind |
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1968-04-10 |
1971-07-13 |
Hepworth Iron Co Ltd |
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1970-11-16 |
1973-06-26 |
B Garrett |
Flexible joint for sewer pipe
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1971-11-22 |
1975-04-22 |
Price Brothers Co |
Pipe joint
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1972-06-30 |
1974-01-02 |
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1973-05-07 |
1977-07-12 |
Kubota Engineering Co, Ltd. |
Tubular end structure of pipe
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1975-08-28 |
1978-10-17 |
Rieber & Son Plastic-Industri A/S |
Combined mould element and sealing ring
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FR2343191A1
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1976-03-03 |
1977-09-30 |
Pont A Mousson |
Garniture a compression radiale
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1976-12-06 |
1978-08-22 |
United States Pipe And Foundry Company |
Gasketed pipe joint
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1977-06-10 |
1982-09-08 |
Thyssen Industrie |
Pipeline portion with a socket joint
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1978-03-03 |
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Eisenwerke Friedr. Wilh. Duker Gmbh & Co. |
Socket connection for pipes and pipe elements
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1979-11-22 |
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Hoesch Werke Ag, 4600 Dortmund |
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1984-07-13 |
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Vassallo Research & Development Corporation |
Composite gasket and fitting including same
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Composite gasket and fitting including same
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1985-08-06 |
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Contech Construction Products Inc. |
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1986-03-27 |
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Multi Fittings Inc. |
Joint for connecting a spigot to the bell of a pipe or coupling
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1986-06-02 |
1988-07-12 |
United States Pipe And Foundry Company |
Method of making pipe-joint gasket
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1986-06-27 |
1987-08-11 |
United States Pipe And Foundry Company |
Large deflection pipe coupling
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1988-08-15 |
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Earthquake resistant pipe joints
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1990-07-27 |
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1992-02-13 |
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1992-10-21 |
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Pipe coupling for a venting system
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2010-08-24 |
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Guarnizione composita a trascinamento per giunzioni di tubi ad alta pressione
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Beveled insert for facilitating coupling pipes
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2018-01-30 |
Press-Seal Gasket Corporation |
Corrugated pipe gasket
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Flexible pipe joint
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American Cast Iron Pipe Company |
Pipe joint with low insertion load, improved retention and increased high pressure sealing ability gasket and method of manufacture thereof
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2019-07-16 |
American Cast Iron Pipe Company |
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2017-08-22 |
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Axial Face Seal Assembly with Improved Abrasion Resistance
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2018-05-31 |
2021-05-04 |
Aktiebolaget Skf |
Axial face seal assembly with outwardly-biased backing rings
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2018-10-19 |
2020-04-22 |
Airbus Operations Ltd |
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2018-12-14 |
2021-03-16 |
Robroy Industries—Texas, LLC |
Electrical conduit system having improved sealing between joints
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2020-11-13 |
2021-07-06 |
United States Pipe And Foundry Company, Llc |
Conductive insert for gasket
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2021-08-30 |
2023-01-17 |
Ming C Kuo |
Pre-stressed concrete pipe
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