for continuous feeding

Patents Grantslast 30 patents

  • Information Patent Grant

    System, method and apparatus for entraining air in concrete

    • Patent number 10,689,302
    • Issue date Jun 23, 2020
    • Mach IV, LLC
    • Charles D. Welker
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    System, method and apparatus for entraining air in concrete

    • Patent number 10,532,954
    • Issue date Jan 14, 2020
    • Mach IV, LLC
    • Charles D. Welker
    • C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
  • Information Patent Grant

    Method and device for dispensing liquids

    • Patent number 8,550,690
    • Issue date Oct 8, 2013
    • Construction Research & Technology GmbH
    • Kelly Hines
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Apparatus and method for mixing cementitious materials having a cyc...

    • Patent number 6,481,883
    • Issue date Nov 19, 2002
    • Pei Technology Inc.
    • Peter Edington Ellen
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Volumetric dry measure apparatus

    • Patent number 5,441,176
    • Issue date Aug 15, 1995
    • Paul Auee
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    Mixing plant

    • Patent number 4,580,902
    • Issue date Apr 8, 1986
    • Dunstan & Partners Pty. Ltd
    • Trevor G. Dunstan
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3185346

    • Patent number 3,185,346
    • Issue date May 25, 1965
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    3128014

    • Patent number 3,128,014
    • Issue date Apr 7, 1964
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2776783

    • Patent number 2,776,783
    • Issue date Jan 8, 1957
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2741401

    • Patent number 2,741,401
    • Issue date Apr 10, 1956
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2570367

    • Patent number 2,570,367
    • Issue date Oct 9, 1951
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1601811

    • Patent number 1,601,811
    • Issue date Oct 5, 1926
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1460573

    • Patent number 1,460,573
    • Issue date Jul 3, 1923
    • B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents