TREA

Producing pipe bends, sockets, sleeves Moulds therefor

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  • CPC
  • B28B21/74
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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B28Stoneworking B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL B28B21/00Methods or machines specially adapted for the production of tubular articles

Current Industry

B28B21/74Producing pipe bends, sockets, sleeves Moulds therefor
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for producing molded tubular objects from poly...
    • Patent number 6,340,442
    • Issue date Jan 22, 2002
    • iloma Automatisierungstechnik GmbH
    • Manfred Brokmann
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Pipeline jointing
    • Patent number 4,725,165
    • Issue date Feb 16, 1988
    • S.E.L. Services Limited
    • Michael A. Langran
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Mold for producing concrete pipe
    • Patent number 4,614,324
    • Issue date Sep 30, 1986
    • Nippon Pressed Concrete Co., Ltd.
    • Kiichi Yamashita
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Refractory pipe fittings and production thereof
    • Patent number 4,102,972
    • Issue date Jul 25, 1978
    • Tomiji Tarukawa
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Method of casting beveled pipe
    • Patent number 4,101,622
    • Issue date Jul 18, 1978
    • Ameron, Inc.
    • Frank M. Wells
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Bell-and-spigot concrete pipe joint with plastic liner ring
    • Patent number 4,084,828
    • Issue date Apr 18, 1978
    • Construction Products Corporation
    • David P. Jones
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    System for finishing pipes
    • Patent number 4,024,006
    • Issue date May 17, 1977
    • U.S. Concrete Pipe Co.
    • Paul E. Gray
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3796407
    • Patent number 3,796,407
    • Issue date Mar 12, 1974
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3758253
    • Patent number 3,758,253
    • Issue date Sep 11, 1973
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3677687
    • Patent number 3,677,687
    • Issue date Jul 18, 1972
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3659992
    • Patent number 3,659,992
    • Issue date May 2, 1972
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3618180
    • Patent number 3,618,180
    • Issue date Nov 9, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3574817
    • Patent number 3,574,817
    • Issue date Apr 13, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3557290
    • Patent number 3,557,290
    • Issue date Jan 19, 1971
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3500514
    • Patent number 3,500,514
    • Issue date Mar 17, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3500513
    • Patent number 3,500,513
    • Issue date Mar 17, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3499067
    • Patent number 3,499,067
    • Issue date Mar 3, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3495308
    • Patent number 3,495,308
    • Issue date Feb 17, 1970
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3487140
    • Patent number 3,487,140
    • Issue date Dec 30, 1969
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3465394
    • Patent number 3,465,394
    • Issue date Sep 9, 1969
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3465075
    • Patent number 3,465,075
    • Issue date Sep 2, 1969
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3414951
    • Patent number 3,414,951
    • Issue date Dec 10, 1968
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3414470
    • Patent number 3,414,470
    • Issue date Dec 3, 1968
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3340337
    • Patent number 3,340,337
    • Issue date Sep 5, 1967
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3206531
    • Patent number 3,206,531
    • Issue date Sep 14, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3201844
    • Patent number 3,201,844
    • Issue date Aug 24, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3200184
    • Patent number 3,200,184
    • Issue date Aug 10, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3161934
    • Patent number 3,161,934
    • Issue date Dec 22, 1964
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3119165
    • Patent number 3,119,165
    • Issue date Jan 28, 1964
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3114956
    • Patent number 3,114,956
    • Issue date Dec 24, 1963
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents