Patents by Inventor Norman C. Maarschalkerweerd

Norman C. Maarschalkerweerd 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: 5651774
    Abstract: An improved hypodermic syringe (5) with safety shield, and method of using same, is disclosed. The hypodermic syringe has an elongate hollow cylindrical barrel (7) with a grip flange (11) formed at a first end (8) thereof, and a hypodermic needle (12) attached to a second end (9) thereof, and in fluid communication with the hollow interior of the barrel. The syringe is provided with a reciprocable plunger assembly (15). An elongate hollow cylindrical safety shield (20) is positioned coaxially about the barrel in a retracted position so that the needle projects axially out of the safety shield for use. The safety shield is constructed and arranged for movement on the barrel from the retracted position into an extended position in which the needle is housed within the safety shield. The safety shield has an integral end shield (36) which can be moved into a closed position transverse to the length of the safety shield for fully enclosing the needle within the safety shield.
    Type: Grant
    Filed: September 11, 1996
    Date of Patent: July 29, 1997
    Assignee: William J. Taranto
    Inventors: William J. Taranto, Norman C. Maarschalkerweerd
  • Patent number: D329885
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: September 29, 1992
    Inventors: Norman C. Maarschalkerweerd, Bernadette E. Maarschalkerweerd