Patents by Inventor Thomas Mal

Thomas Mal 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).

  • Water spray ventilator system for continuous mining machines
    Patent number: 5407253
    Abstract: The invention relates to a water spray ventilator system mounted on a continuous mining machine to streamline airflow and provide effective face ventilation of both respirable dust and methane in underground coal mines. This system has two side spray nozzles mounted one on each side of the mining machine and six spray nozzles disposed on a manifold mounted to the underside of the machine boom. The six spray nozzles are angularly and laterally oriented on the manifold so as to provide non-overlapping spray patterns along the length of the cutter drum.
    Type: Grant
    Filed: July 6, 1994
    Date of Patent: April 18, 1995
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Steven J. Page, Thomas Mal