Patents by Inventor Carl Heitschel

Carl Heitschel 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).

  • Coding system for multiple transmitters and a single receiver for a garage door opener
    Patent number: 4750118
    Abstract: The present invention comprises a system for remote control of garage doors and other devices wherein an extremely large number of codes are available for remote transmitters for operating the garage operator and wherein each transmitter has its own unique and permanent nonuser changeable code. The receiver at the garage door operator is capable of storing and remembering a number of different codes corresponding to different transmitters such that the receiver can be programmed so as to actuated by more than one transmitted code thus allowing two or more transmitters to actuate the same garage door operator and wherein the receiver stores the valid codes for the different transmitters.
    Type: Grant
    Filed: October 29, 1985
    Date of Patent: June 7, 1988
    Assignee: Chamberlain Manufacturing Corporation
    Inventors: Carl Heitschel, Colin Willmott, Wayne Schindler
  • Coding system for multiple transmitters and a single receiver
    Patent number: RE37986
    Abstract: The present invention comprises a system for remote control of garage doors and other devices wherein an extremely large number of codes are available for remote transmitters for operating the garage operator and wherein each transmitter has its own unique and permanent nonuser changeable code. The receiver at the garage door operator is capable of storing and remembering a number of different codes corresponding to different transmitters such that the receiver can be programmed so as to actuated by more than one transmitted code thus allowing two or more transmitters to actuate the same garage door operator and wherein the receiver stores the valid codes for the different transmitters.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: February 11, 2003
    Assignee: The Chamberlain Group, Inc.
    Inventors: Carl Heitschel, Colin Willmott, Wayne Schindler
  • Coding system for multiple transmitters and a single receiver for a garage door opener
    Patent number: RE35364
    Abstract: The present invention comprises a system for remote control of garage doors and other devices wherein an extremely large number of codes are available for remote transmitters for operating the garage operator and wherein each transmitter has its own unique and permanent nonuser changeable code. The receiver at the garage door operator is capable of storing and remembering a number of different codes corresponding to different transmitters such that the receiver can be programmed so as to actuated by more than one transmitter code thus allowing two or more transmitters to actuate the same garage door operator and wherein the receiver stores the valid codes for the different transmitters.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: October 29, 1996
    Assignee: The Chamberlain Group, Inc.
    Inventors: Carl Heitschel, Colin Willmott, Wayne Schindler
  • Coding system for multiple transmitters and a single receiver for a garage door opener
    Patent number: RE36703
    Abstract: The present invention comprises a system for remote control of garage doors and other devices wherein an extremely large number of codes are available for remote transmitters for operating the garage operator and wherein each transmitter has its own unique and permanent nonuser changeable code. The receiver at the garage door operator is capable of storing and remembering a number of different codes corresponding to different transmitters such that the receiver can be programmed so as to actuated by more than one transmitted code thus allowing two or more transmitters to actuate the same garage door operator and wherein the receiver stores the valid codes for the different transmitters.
    Type: Grant
    Filed: August 12, 1996
    Date of Patent: May 16, 2000
    Assignee: The Chamberlain Group, Inc.
    Inventors: Carl Heitschel, Colin Willmott, Wayne Schindler