Patents by Inventor Don J. Harsh

Don J. Harsh 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: 5205833
    Abstract: A generally cylindrical structure of rigid material is configured such that the device is capable of at least partially circumscribing at least a portion of a syringe barrel. Near one end of the cylindrical structure, the apparatus is provided with a structure for secure attachment to the base of a hypodermic needle.The structure for secure attachment to the base of a hypodermic needle may vary depending on the specific structure of the apparatus and the type of needle used. In one embodiment of the device, the means of attachment comprises "Luer" threads on the interior surface of the cylindrical structure. Those threads, in turn, engage the base of a typical needle and the device provides twisting engagement with the needle base.Using the device removal of the needle from the syringe barrel is simple and safe. The structure is simply pressed in a forward direction (i.e.
    Type: Grant
    Filed: August 16, 1991
    Date of Patent: April 27, 1993
    Inventors: Don J. Harsh, Linda R. Hills, Kennalyn Howard
  • Patent number: 4904244
    Abstract: An apparatus for removing needles from a hypodermic syringe is provided. The syringe is of the type having a barrel and a needle socket. The present invention teaches placing a collar apparatus between the base of the needle and the end of the syringe barrel in the region of the needle socket. The present invention also provides means for causing the collar to move generally away from the syringe barrel such that the collar causes the needle to be disengaged from the needle socket.Several embodiments of the present invention are disclosed. For example, in one embodiment one or more curved elongated arms are attached at their distal end to the collar. As their proximal end, they are securely attached to the syringe. Thus, when the arms are pressed inwardly the collar is forced to move forward disengaging the syringe from the syringe socket.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: February 27, 1990
    Inventors: Don J. Harsh, Linda R. Hills, Kennalyn Howard