Patents by Inventor Mark J. Summer

Mark J. Summer 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).

  • Hydrometer/fluid level sensor
    Patent number: 7430907
    Abstract: A battery and battery condition indicator are provided with a seal as monolithic structures whereby the indicator is inserted in an opening in the battery and sealed there against via ribs in the battery confronted by a surface of the indicator and/or ribs on the indicator embedded in a surface of the battery defining the opening.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: October 7, 2008
    Assignee: Illinois Tool Works Inc.
    Inventors: Mark J. Summer, Martin A. Witt
  • Fluid lever indicator protection sleeve
    Publication number: 20070240627
    Abstract: A fluid level indicator or hydrometer is provided that includes an optical tube and a protective sleeve or jacket. The optical tube is highly polished and includes a site glass integrally connected to a distal cone by an intermediate extension shaft. The protective sleeve or jacket surrounds at least the intermediate extension shaft.
    Type: Application
    Filed: November 8, 2006
    Publication date: October 18, 2007
    Inventor: Mark J. Summer
  • Hydrometer/fluid level sensor
    Patent number: 7228737
    Abstract: A light transmissive body for a fluid condition indicator has a substantial length shaped as a cruciform in transverse cross-section.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: June 12, 2007
    Assignee: Illinois Tool Works Inc
    Inventors: Mark J. Summer, Martin A. Witt
  • Molded plastic rod with improved break strength
    Patent number: 7229585
    Abstract: An injection molded plastic rod suitable for use in a battery hydrometer. Stress-relieving formations are provided symmetrically arranged on opposite sides of an injection gate of the rod. The formations distribute injection stresses and shield the gate vestige.
    Type: Grant
    Filed: July 22, 2003
    Date of Patent: June 12, 2007
    Assignee: Illinois Tool Works Inc.
    Inventor: Mark J. Summer
  • Molded plastic rod with improved break strength
    Publication number: 20040126552
    Abstract: An injection molded plastic rod suitable for use in a battery hydrometer. Stress-relieving formations are provided symmetrically arranged on opposite sides of an injection gate of the rod. The formations distribute injection stresses and shield the gate vestige.
    Type: Application
    Filed: July 22, 2003
    Publication date: July 1, 2004
    Inventor: Mark J. Summer