Patents by Inventor Eugene C. Ulm

Eugene C. Ulm 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).

  • Elevator door sill assembly
    Publication number: 20040149521
    Abstract: The invention provides an elevator door sill assembly for use in elevator systems that have sliding doors. The door sill assembly comprises a sill plate, a support sill located below the sill plate having a rail that presents an inboard sliding surface and an outboard sliding surface. The assembly also comprises a first guiding surface that engages that inboard sliding surface and a second guiding surface that engages the outboard sliding surface. The assembly prevents that bottom of the elevator door from swinging while the door slides opened and closed. The sill assembly and guide system may be used with either hoistway doors or elevator car doors.
    Type: Application
    Filed: December 16, 2003
    Publication date: August 5, 2004
    Inventors: Ernest A. Heath, Eugene C. Ulm
  • Elevator door sill assembly
    Patent number: 6684573
    Abstract: An elevator door sill assembly for use in elevator systems that have sliding doors. The door sill assembly comprises a sill plate, a support sill located below the sill plate having a rail that presents an inboard sliding surface and an outboard sliding surface. The assembly also comprises a first guiding surface that engages that inboard sliding surface and a second guiding surface that engages the outboard sliding surface. The assembly prevents that bottom of the elevator door from swinging while the door slides opened and closed. The sill assembly and guide system may be used with either hoistway doors or elevator car doors.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: February 3, 2004
    Assignee: Thyssen Elevator Capital Corp.
    Inventors: Ernest A. Heath, Eugene C. Ulm
  • Elevator door sill assembly
    Publication number: 20030033754
    Abstract: The invention provides an elevator door sill assembly for use in elevator systems that have sliding doors. The door sill assembly comprises a sill plate, a support sill located below the sill plate having a rail that presents an inboard sliding surface and an outboard sliding surface. The assembly also comprises a first guiding surface that engages that inboard sliding surface and a second guiding surface that engages the outboard sliding surface. The assembly prevents that bottom of the elevator door from swinging while the door slides opened and closed. The sill assembly and guide system may be used with either hoistway doors or elevator car doors.
    Type: Application
    Filed: May 4, 2001
    Publication date: February 20, 2003
    Inventors: Ernest A. Heath, Eugene C. Ulm