Patents by Inventor Randall J. Cooper

Randall J. Cooper has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • System for dispensing abrasives into a gas stream for cleaning pipe interiors
    Patent number: 9085064
    Abstract: A system and method for dispensing abrasive particulate material into a stream of air or gas for introduction into a pipe for the purpose of cleaning the pipe and preparing the inner surface for coating or lining. The system comprises an air blower coupled to the pipe, and generates the stream of air or gas, and a three component feed assembly for dispensing the abrasive particulate material. The feed assembly operates at atmospheric pressure and is in fluid communication with each of the pipe and the air blower, and is used to meter the abrasive particulate material into the stream of gas for introduction into the pipe. The system further comprises a shut-off valve that is in fluid communication with the feed assembly, the air blower and the pipe and is cycled to isolate the feed assembly from the air blower during pipe drying and maintenance operations.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: July 21, 2015
    Assignee: ENVIROLOGICS ENGINEERING INC.
    Inventor: Randall J. Cooper
  • System for dispensing abrasives into a gas stream for cleaning pipe interiors
    Publication number: 20120064806
    Abstract: A system and method for dispensing abrasive particulate material into a stream of air or gas for introduction into a pipe for the purpose of cleaning the pipe and preparing the inner surface for coating or lining. The system comprises an air blower coupled to the pipe, and generates the stream of air or gas, and a three component feed assembly for dispensing the abrasive particulate material. The feed assembly operates at atmospheric pressure and is in fluid communication with each of the pipe and the air blower, and is used to meter the abrasive particulate material into the stream of gas for introduction into the pipe. The system further comprises a shut-off valve that is in fluid communication with the feed assembly, the air blower and the pipe and is cycled to isolate the feed assembly from the air blower during pipe drying and maintenance operations.
    Type: Application
    Filed: September 9, 2010
    Publication date: March 15, 2012
    Inventor: Randall J. Cooper