Patents by Inventor Walter Seemayer

Walter Seemayer 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).

  • Valved spike transfer device
    Patent number: 4128098
    Abstract: A transfer device for charging a series of hypodermic syringes with medicament from a vial, such as in hospital pharmacies. The transfer device includes a valved spike with a syringe coupler rigidly supported on the spike. Contained within the syringe coupler is a longitudinally collapsible valve that opens upon insertion of a blunt syringe tip into the coupler and closes upon removal of such syringe tip. A protective skirt on the coupler has snap lugs for securing the transfer device to the vial.
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: December 5, 1978
    Assignee: American Hospital Supply Corporation
    Inventors: William G. Bloom, Pradip V. Choksi, Walter Seemayer
  • Vented needle for medical liquids
    Patent number: 4058121
    Abstract: A thermoplastic needle for injecting sterile liquid into a vial with lateral turbulent motion while air from such vial escapes through a special vent groove on the needle. The needle also has spaced stop wings adjacent a rear portion of the vent groove to prevent overinsertion and occlusion of the vent groove.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: November 15, 1977
    Assignee: American Hospital Supply Corporation
    Inventors: Pradip Vinobchandra Choksi, Donald Leroy Johnston, Walter Seemayer
  • Syringe connector
    Patent number: 4046145
    Abstract: A connector for joining a small dose syringe to a large reservoir syringe for filling the small dose syringe from the reservoir syringe. The connector has a tubular female-to-female coupler and there is a protector housing that is spaced radially outward from and extends forwardly beyond the coupler portion that attaches to the small dose syringe, thereby protecting this coupler portion from touch contamination. A removable closure with a recessed plug protects the small dose coupler portion from contamination when not in use.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: September 6, 1977
    Assignee: American Hospital Supply Corporation
    Inventors: Pradip Vinobchandra Choksi, Walter Seemayer