Patents by Inventor Ronald A. Rolleston, II

Ronald A. Rolleston, II 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).

  • Syringe tip retainer assembly
    Patent number: 5433485
    Abstract: The syringe tip is connected to a syringe head by an assembly that permits quick detachment and replacement of syringe tips without the use of tools. In one embodiment the assembly is adjustable for permitting or restricting rotation of the syringe tip.
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: July 18, 1995
    Assignee: A-Dec, Inc.
    Inventors: George K. Austin, Jr., Ronald A. Rolleston, II, Mathew H. Parlier, Sandor Johannes
  • Control panel with sealed switch keypad
    Patent number: 5430266
    Abstract: The front panel of a control panel is provided with a recess for receiving a keypad. The recess is larger than the keypad to define a channel between the edges of the keypad and the sides of the recess. A sealant fills the channel to provide a smooth transition between the front panel and the keypad that protects the edges of the keypad and prevents the entry of moisture and debris into the channel. The control panel can be assembled by fixing the keypad within the recess, placing a temporary barrier over the top surface of the channel, and introducing the sealant into the channel. The sealant can be introduced through one or more ports in either the front panel or the temporary barrier. The temporary barrier is removed when the sealant hardens within the channel.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: July 4, 1995
    Assignee: A-Dec, Inc.
    Inventors: George K. Austin, Jr., Robert E. Holden, Ronald A. Rolleston, II, Robert L. Sickler
  • Retainer assembly for syringe tip
    Patent number: 5286065
    Abstract: A syringe tip is connected to a syringe head by an assembly that permits quick detachment and replacement of syringe tips without the use of tools. The assembly is adjustable for permitting or restricting rotation of syringe tip.
    Type: Grant
    Filed: February 24, 1992
    Date of Patent: February 15, 1994
    Assignee: A-Dec, Inc.
    Inventors: George K. Austin, Sandor Johannes, Ronald A. Rolleston, II