Patents by Inventor Prentice C. Wharff

Prentice C. Wharff 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).

  • Needle assembly
    Patent number: 4938744
    Abstract: Double-protected needle assembly comprising a needle-handle portion and a needle-protecting portion. The needle-handle portion includes a bevel-tipped needle attached to and extending from it into the needle-protector portion. The needle protecting portion comprises a rigid, tamper proof member completely enclosing the needle and attached to the needle-handle portion at a resilient tear seal member adapted to break when a twisting force is applied to either the handle portion or the protecting member. The tear seal is adapted to remove liquid from the surface of the needle when the protector is withdrawn to expose the needle. Within the protector, but not attached thereto, is a relatively soft inner tubular enclosure completely enclosing the needle extending beyond its bevel tip and adapted to prevent contact of the bevel tip with any portion of the rigid protector during assembly or when the protector is removed.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: July 3, 1990
    Assignee: Miles Laboratories, Inc.
    Inventors: Prentice C. Wharff, Renato R. Salumbides
  • Needle assembly
    Patent number: 4530697
    Abstract: There is disclosed a needle assembly comprising a needle, a needle-retaining portion, a removable needle protector portion, and a resilient member for removing liquid from the surface of the needle which is disposed around the needle rearward of its point. The liquid removing member has a needle-accommodating opening with a diameter approximately that of the outside diameter of the needle. The member is contained within the needle protector portion and removable from the needle with the removal of the needle protector portion from the assembly. Also disclosed are blood bag systems comprising a donor bag and the aforementioned needle assembly.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: July 23, 1985
    Assignee: Miles Laboratories, Inc.
    Inventors: Bruce N. Kuhlemann, Kalman Horvath, Prentice C. Wharff
  • Needle assembly
    Patent number: 4435177
    Abstract: There is disclosed a needle assembly comprising a needle, a needle-retaining portion, a removable needle protector portion, and a resilient member for removing liquid from the surface of the needle which is disposed around the needle rearward of its point. The liquid removing member has a needle-accommodating opening with a diameter approximately that of the outside diameter of the needle. The member is contained within the needle protector portion and removable from the needle with the removal of the needle protector portion from the assembly. Also disclosed are blood bag systems comprising a donor bag and the aforementioned needle assembly.
    Type: Grant
    Filed: June 9, 1982
    Date of Patent: March 6, 1984
    Assignee: Cutter Laboratories, Inc.
    Inventors: Bruce N. Kuhlemann, Kalman Horvath, Prentice C. Wharff