Patents by Inventor Thomas M. Donohue

Thomas M. Donohue 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).

  • Apparatus for joining a powder metal blank to a pin
    Patent number: 6217250
    Abstract: An initially separate blank and pin, where the blank one is formed of powdered metal, and is joined to the pin compressing and locally densifying the blank so that a deviation from perpendicularity of the joined pin to the blank is less than or equal to approximately 0.00120″ at a distance of approximately 0.4″ from a planar first surface. In accordance with a further embodiment, the blank is formed of powder metal and is joined to the pin by compressing the blank so that for a process limit of approximately 0.00120″ at a distance of approximately 0.4″ from a planar first surface, a capability index of the joined pin to the blank is greater than or equal to approximately 2.00.
    Type: Grant
    Filed: November 23, 1998
    Date of Patent: April 17, 2001
    Assignee: The Presmet Corporation
    Inventors: Carlos E. Camelo, Thomas M. Donohue