Patents by Inventor Fleur Denise Van Noorden

Fleur Denise Van Noorden 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).

  • Hypodermic syringe with retractable needle mount
    Patent number: 5843034
    Abstract: A hypodermic syringe (10) comprising a barrel (14) for containing medicament or other liquid, movable piston means (16) including a shaft (40) provided with a chamber (42) and frangible chamber sealing means (20), needle mounting means (22) disposable within barrel (14), spring means (18) for imparting movement to needle mounting means (22), and restraining means (28) in barrel (14) comprising an annular structure (36) located towards first end (30) of barrel (14) extending inwardly thereof and containing a plurality of radially-extending weakened portion (38), wherein needle mounting means (22) when in a first position extends partway from first end (30) and is restrained from movement by engagement with restraining means (28), the restraining means (28) being operable to release needle mounting means (22) when piston (16) approaches first end (30) and then to engage and restrain piston (16) from reverse movement, the needle mounting means (22) on release having been propelled through frangible diaphragm (66
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: December 1, 1998
    Assignee: Lok-Tek International Ltd.
    Inventors: Robert Roy Redfern, deceased, Elaine Redfern, Jon James Van Noorden, Fleur Denise Van Noorden