Patents by Inventor Donald S. Hassell

Donald S. Hassell 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).

  • Patent number: 6604766
    Abstract: A tool for installing fiberglass insulation. The tool having a handle with a telescopically movable post for extending its length. The tool having a grasping portion for holding the insulation. The grasping potion comprising of a pair of gripping plates, each with a stabilizing strip attached thereto. A cam flange section integral with the tops of the plates and having a pair of arc shaped slots for sliding engagement with the plates. Rotation of the handle causing the plates to either open or close.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: August 12, 2003
    Inventor: Donald S. Hassell
  • Publication number: 20030062733
    Abstract: A tool for installing fiberglass insulation. The tool having a handle with a telescopically movable post for extending its length. The tool having a grasping portion for holding the insulation. The grasping potion comprising of a pair of gripping plates, each with a stabilizing strip attached thereto. A cam flange section integral with the tops of the plates and having a pair of arc shaped slots for sliding engagement with the plates. Rotation of the handle causing the plates to either open or close.
    Type: Application
    Filed: October 1, 2001
    Publication date: April 3, 2003
    Inventor: Donald S. Hassell
  • Patent number: 6338368
    Abstract: A gravity refilling system for adding water to wet cell batteries. The system is for one or more batteries and utilizes apparatus mounted to the underside of a golf car seat. The apparatus includes a reservoir tank, a valve assembly, a disconnect assembly and cell plugs that will automatically prevent overfilling of battery cells. The valve assembly has mechanism for individually controlling a plurality of refilling operations. The system does not require the operator to have any physical contact with the batteries as they can be acidic and potentially hazardous.
    Type: Grant
    Filed: January 22, 2001
    Date of Patent: January 15, 2002
    Inventor: Donald S. Hassell
  • Patent number: 6228525
    Abstract: The invention relates to a gravity filling system for adding water to wet cell batteries. The system is for one or more batteries and incorporates a new and improved cell plug which will reduce risk of hazardous gases and toxic acids to the operator. The cell plug incorporates a styrofoam packed float chamber, that forces a float needle to seal off the cell when the water level reaches a predetermined desirable level. The device fills the battery level without overfilling which can be as detrimental as not filling it enough. The operator can by visual inspection ascertain when the filling of any particular battery has been completed.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: May 8, 2001
    Inventor: Donald S. Hassell
  • Patent number: 4334530
    Abstract: Novel adhesive bandages having indicia or markings indicating the direction of removal without reopening or otherwise impairing healing of the wound covered thereby.
    Type: Grant
    Filed: September 12, 1980
    Date of Patent: June 15, 1982
    Inventor: Donald S. Hassell
  • Patent number: D484542
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: December 30, 2003
    Inventor: Donald S. Hassell