Patents by Inventor Frank Joseph Mastromatteo

Frank Joseph Mastromatteo 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).

  • Spline cushion clutch driver for an electromagnetic clutch
    Patent number: 6578688
    Abstract: An automotive air conditioning compressor clutch eliminates all rivets and utilizes only one return spring. A hub with multiple radial teeth closely fitting into armature openings supports the armature plate concentric and parallel to a pulley friction disk. The armature is free to slide relative to the hub as the return spring is compressed. The thrust areas between the hub teeth and armature are large, which reduces compressive stress. The lower stress reduces the wear rate for both the all-metal and rubber torque cushion versions of the clutch.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: June 17, 2003
    Assignee: North Coast Clutch Company, Inc.
    Inventors: Hugh James Muirhead, Frank Joseph Mastromatteo
  • Spline cushion clutch driver for an electromagnetic clutch
    Publication number: 20030085095
    Abstract: An automotive air conditioning compressor clutch eliminates all rivets and utilizes only one return spring. A hub with multiple radial teeth closely fitting into armature openings supports the armature plate concentric and parallel to a pulley friction disk. The armature is free to slide relative to the hub as the return spring is compressed. The thrust areas between the hub teeth and armature are large, which reduces compressive stress. The lower stress reduces the wear rate for both the all-metal and rubber torque cushion versions of the clutch.
    Type: Application
    Filed: November 2, 2001
    Publication date: May 8, 2003
    Inventors: Hugh James Muirhead, Frank Joseph Mastromatteo