Patents by Inventor Aeneas C. Guiney

Aeneas C. Guiney 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).

  • Mixing syringe
    Patent number: 4116240
    Abstract: A single barrel mixing syringe in which one material such as a liquid is stored in the bore of the syringe barrel and another material such as a powder is stored in a chamber formed in a resilient piston head which forms not only the powder containing compartment but also the seals preventing leakage of liquid from the syringe. The two chambers are separated by a wall which may be displaced in one embodiment by differential pressure during movement of the piston portion of the syringe and in another embodiment by a separate plunger which displaces the wall.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: September 26, 1978
    Inventor: Aeneas C. Guiney
  • Mixing syringe
    Patent number: 4041945
    Abstract: A single barrel mixing syringe in which one material such as a liquid is stored in the bore of the syringe barrel and another material such as a powder is stored in a chamber formed in a resilient piston head which forms not only the powder containing compartment but also the seals preventing leakage of liquid from the syringe. The two chambers are separated by a wall which may be displaced in one embodiment by differential pressure during movement of the piston portion of the syringe and in another embodiment by a separate plunger which displaces the wall.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: August 16, 1977
    Inventor: Aeneas C. Guiney