Patents by Inventor Patrick M. Doyle

Patrick M. Doyle 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).

  • Publication number: 20030140751
    Abstract: A saw guide pad seal enables recycling of the coolant/lubricant used in a lumber sawing operation. The saw guide pad seal directs the coolant to coolant return chambers. The coolant return chambers have a negative pressure developed from the motion of the saw blade or provided by a vacuum pump or blower, and return the coolant to the coolant tank. A heat-exchanger is optionally used to control the temperature of the coolant, providing more consistent operation of the saw, and a filter is optionally used to remove contaminants before the recycled coolant is provided to the saw blade(s).
    Type: Application
    Filed: December 18, 2002
    Publication date: July 31, 2003
    Applicant: Coe Newnes/McGehee ULC
    Inventors: Ronald W. McGehee, Patrick M. Doyle