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2017
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Invention
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Flexible concrete hose shut-off valve. A concrete flow leakage-preventing shut-off valve includes... |
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Invention
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Mechanical interface and method for fastening collars onto pipe ends.
An assembly for forming a ... |
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Invention
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Mechanical interface and method for fastening collars onto pipe ends. An assembly for forming a m... |
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Invention
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System and method for monitoring part location and predicting replacement.
A method and system f... |
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2013
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G/S
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Pipes and pipe couplings of metal for pumping concrete Concrete placing machines, namely, bridge ... |
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2003
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Invention
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Fiberglass, reinforced concrete hose shut-off valve. A shut off valve for use with a concrete del... |
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Invention
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Flared ends conduit coupling. A coupling arrangement for permitting fluid-tight, pressurized flui... |
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2002
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Invention
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Auto lock coupling with assymetrically-shaped gasket. A locking arrangement for a pipe coupling t... |
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Invention
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Method and apparatus for a line concrete pumping system. A modular system for adapting a boom con... |
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Invention
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Concrete hose shut-off valve. A shut off valve for use with a concrete delivery hose includes a p... |
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Invention
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Tapered boom hose. A concrete boom hose is provided with a first end that is connected to the out... |
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Invention
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Coupling units connecting tubular members having a hardened inner wall for carrying mechanically ... |
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1996
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Invention
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Pipe having replaceable wear resistant lined coupler. A pipe section for concrete includes an end... |
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1995
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G/S
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pipes and pipe couplings of metal for pumping concrete |
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1992
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Invention
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Rotating mixing drum with replaceable liner for mixing aggregate and binder. A mixing drum unit f... |
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1991
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Invention
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Method of forming a composite tubular unit by expanding, low-frequency induction heating and succ... |
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1987
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Invention
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Semi-liquid cementitious spray nozzle apparatus. A semi-liquid cementitious pump nozzle unit for ... |
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1985
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Invention
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Adjustable pipe extender for high pressure lines carrying abrasive materials. A concrete pumping ... |
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Invention
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High pressure concrete line coupling clamp with limit adjust apparatus. A concrete pumping pipe c... |
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1981
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Invention
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Discharge valve for concrete pumping apparatus. A "dump" valve for a concrete pumping line includ... |
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1980
|
Invention
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High pressure coupling apparatus. Concrete pumping conduits are connected by releasable hinged co... |
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1978
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Invention
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Concrete pumping swivel coupling apparatus. A swivel coupling apparatus includes a pair of aligne... |
