Tamko Roofing Products, Inc.

Hy-flex Corp.

Ernest Bennett Mills

Stanley Peter Frankoski

Mark Thomas Hensley

Bennett Allen Mills

A progressive cavity pumping system includes a pump housing, a rotor member operatively received in the pump housing, a prime mover coupled to the rotor member for driving the rotor member in first and second directions and a controlling means for actuating the prime mover, wherein the controlling automatically causes the rotor member to be driven in the second direction after shut down or idling of the pumping system. A method of operating the pumping system includes automatically driving the rotor member in a second direction after initiating shut down or idling of the pumping system and prior to start up of the same.

Control for progressive cavity pump

An apparatus and method for pumping high viscosity mixtures, for example silicone-aggregate mixtures, including a pump and a hose, wherein the hose is impermeable, nonadherent with the mixture, and resistant to swelling, and the pump and the hose are sealable. In preferred embodiments, the apparatus and method can include a metering mechanism for dispensing the mixture to the pump, an agitator for mixing the mixture before it enters the pump, and a spray nozzle for applying the mixture exiting the hose. Even more preferred embodiments can include a metering mechanism in the form of a variable speed auger screw, a hose internally lined with a coating of polytetrafluoroethylene, a hose structurally reinforced, and a pump and hose that are individually sealable.

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Cambridge City, IN, United States of America

Ernest Bennett Mills