Patents by Inventor Kenneth R. Michael

Kenneth R. Michael 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).

  • Method of mixing plural components
    Patent number: 4243080
    Abstract: A system for storing a dry powdered drug component and a liquid in separate containers and mixing them immediately prior to injection. The system has a hypodermic syringe with an axially slidable stopper, and the syringe is coupled to a rigid tubular housing with a low friction vacuum movable piston. Simple reciprocation of the syringe stopper with an attached plunger having a laterally extending thumb pad or other graspable slip resistant surface automatically reciprocates the housing's low friction piston and causes quick and complete turbulent mixing. There is no need to turn the device over and over in the operator's hands to alternately squeeze or push opposite ends of the device.
    Type: Grant
    Filed: April 2, 1979
    Date of Patent: January 6, 1981
    Assignee: American Hospital Supply Corporation
    Inventors: Pradip V. Choksi, Kenneth R. Michael, William H. Penny
  • Plural component mixing system and method
    Patent number: 4172457
    Abstract: A system for storing a dry powdered drug component and a liquid in separate containers and mixing them immediately prior to injection. The system has a hypodermic syringe with an axially slidable stopper, and the syringe is coupled to a rigid tubular housing with a low friction vacuum movable piston. Simple reciprocation of the syringe stopper with an attached plunger having a laterally extending thumb pad or other graspable slip resistant surface automatically reciprocates the housing's low friction piston and causes quick and complete turbulent mixing. There is no need to turn the device over and over in the operator's hands to alternately squeeze or push opposite ends of the device.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: October 30, 1979
    Assignee: American Hospital Supply Corporation
    Inventors: Pradip V. Choksi, Kenneth R. Michael, William H. Penny