Patents by Inventor Steffen Lyons

Steffen Lyons 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).

  • Apparatus for sealing and severing a web of film
    Patent number: 4964944
    Abstract: An apparatus for sealing and severing a web of film. The apparatus includes a first jaw located on one side of the web of film and a second jaw located on a second side of the web of film. The first and second jaws cooperate to grip the web of film. Located within the first jaw is a heater member for sealing and severing the web of film. The heater member is secured so that the time and/or pressure at which the heater member engages the web of film may be varied independent of the first jaw.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: October 23, 1990
    Assignee: Baxter International Inc.
    Inventors: William C. Christine, Steffen Lyons, John Posey, Schmidt, Josef, George J. Herschman
  • Apparatus for sealing a web of film
    Patent number: 4761197
    Abstract: An apparatus for sealing a web of film including a heater member for melting a portion of the film to create side and chevron seals. A back-up bar is located diametric the heater member. The heater member includes two elongated heater bars and two wing heater bars.
    Type: Grant
    Filed: July 28, 1986
    Date of Patent: August 2, 1988
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: William C. Christine, Josef Schmidt, Steffen Lyons, Brian Green, George J. Herschman
  • Apparatus for making coude catheters
    Patent number: 4368023
    Abstract: A method of making a curved-tip (coude) catheter which comprises: inserting an end of a flexible, thermoplastic tube into the bore of a closed-end, hollow, tubular die which defines the desired curve of the curved-tip catheter. The tubular die is heated to a temperature above the plastic melt temperature of the thermoplastic tube, while advancing the tube into the die, to cause at least about 0.5 cm. of the tube end to collapse into a generally solid, curved mass. The die and tube contained therein are then cooled to a temperature below the plastic melt temperature, and the tube is withdrawn having a closed, formed coude tip.
    Type: Grant
    Filed: February 4, 1981
    Date of Patent: January 11, 1983
    Assignee: Baxter Travenol Laboratories Inc.
    Inventors: Richard E. Hannah, Steffen Lyons
  • Method and apparatus for making coude catheters
    Patent number: 4292270
    Abstract: A method of making a elbowed end (coude) catheter which comprises: inserting an end of a flexible, thermoplastic tube into the bore of a closed-end, hollow, tubular die which defines the desired curve of the elbowed end catheter. The tubular die is heated to a temperature above the plastic melt temperature of the thermoplastic tube, while advancing the tube into the die, to cause at least about 0.5 cm. of the tube end to collapse into a generally solid, curved mass. The die and tube contained therein are then cooled to a temperature below the plastic melt temperature, and the tube is withdrawn having a closed, formed coude tip.
    Type: Grant
    Filed: June 22, 1979
    Date of Patent: September 29, 1981
    Assignee: Baxter Travenol Laboratories, Inc.
    Inventors: Richard E. Hannah, Steffen Lyons