Patents by Inventor Walter J. Bornhorst

Walter J. Bornhorst 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 and apparatus for prototyping a three-dimensional object
    Patent number: 6375874
    Abstract: A printer forms three-dimensional objects from a powder by selectively applying a binder liquid to incremental layers of the powder. The binder binds layers of the powder into solid two-dimensional cross sections of the desired object provided from memory. The printer can use dithering and halftoning techniques to shade the object and can also print in color. A filtration system removes airborne powder and recirculates the clean air. The printer also includes additional features to manage excess and airborne powder.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: April 23, 2002
    Assignee: Z Corporation
    Inventors: David B. Russell, Timothy Anderson, James F. Bredt, Michael J. Vogel, Walter J. Bornhorst
  • Method and apparatus for prototyping a three-dimensional object
    Patent number: 6007318
    Abstract: A printer forms three-dimensional objects from a powder by selectively applying a binder liquid to incremental layers of the powder. The binder binds layers of the powder into solid two-dimensional cross sections of the desired object provided from memory. The printer can use dithering and halftoning techniques to shade the object and can also print in color. A filtration system removes airborne powder and recirculates the clean air. The printer also includes additional features to manage excess and airborne powder.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: December 28, 1999
    Assignee: Z Corporation
    Inventors: David B. Russell, Timothy Anderson, James F. Bredt, Michael J. Vogel, Martin Seymour, Walter J. Bornhorst, Marina I. Hatsopoulos
  • Endotracheal tube holder
    Patent number: 3976080
    Abstract: An endotracheal tube holder comprises a substantially straight projection having a laterally curved, trough-like surface mounted on a base for securing said projection to a person's head such that the projection is adapted to receive in longitudinally aligned relation the protruding end of an endotracheal tube in its applied working position. A pair of laterally opposed tabs at the outer end of the projection serve as stop lugs for preventing a wrapping, such as tape, which binds the tube to the projection from sliding off the projection.
    Type: Grant
    Filed: September 3, 1974
    Date of Patent: August 24, 1976
    Assignee: Thermo Electron Corporation
    Inventors: Walter J. Bornhorst, Steven J. Coleman, James W. O'Brien
  • Tennis shoe toe cup
    Patent number: 3974578
    Abstract: This invention discloses a means for protecting the toe of a tennis shoe, and comprises a flexible cup-shaped molded elastomer whose inner and outer surfaces are substantially convex, coaxial surfaces of revolution, and which is attached to the toe of a flexible tennis shoe by an elastic adhesive. The elastomer cup and elastic adhesive are both characterized by flexibility substantially similar to that of the shoe. Some embodiments of the invention include a recessed cross-lined pattern on the inner surface of the cup to promote adhesion to the shoe.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: August 17, 1976
    Inventors: Peter E. Oettinger, Walter J. Bornhorst