Patents by Inventor John F. Wilkins

John F. Wilkins 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: 5137521
    Abstract: A safety shield slidably mounted upon a disposable hypodermic syringe and needle assembly and having an elongated guide slot which cooperates with a resilient tab cooperating therewith to maintain orientation between the syringe body and the telescoping shield. A resilient locking tab integral with the syringe body cooperates with a pair of spaced slots arranged along the telescoping shield to define the initial shielded position and the usable position respectively. The telescoping shield includes a shoulder which receives the bent-over flexible tab to lock the shield in the shielded position to prevent contact with the needle, facilitating safe handling of the assembly.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: August 11, 1992
    Assignee: Alco Machine & Tool, Inc.
    Inventor: John F. Wilkins