Patents by Inventor Andrew T. Cole

Andrew T. Cole 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).

  • Method of making a piston
    Patent number: 4997024
    Abstract: A method of bonding a component in a piston, involves the steps of coating the component surfaces to be bonded with an oxidation-resistant particulate material, preheating the coated component, placing the preheated component in a casting die and then casting an aluminum alloy around the component. The casting technique may comprise squeeze-casting.
    Type: Grant
    Filed: July 6, 1989
    Date of Patent: March 5, 1991
    Assignees: T&N Technology Limited, Wellworthy Limited
    Inventors: Andrew T. Cole, Robert Munro
  • Method of forming a piston containing a cavity
    Patent number: 4972898
    Abstract: A porous body is formed around an element which has the shape of the desired cavity and the body is heated to a temperature such that the element melts and infiltrates the porous body at least in the immediate vicinity of the resulting cavity. The article may then, for example, be incorporated into a piston for an internal combustion engine so as to form a cavity in the crown region thereof.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: November 27, 1990
    Assignee: T & N Technology Limited
    Inventor: Andrew T. Cole