Automatic garage door operator with remote load control

• US 4,847,542 A
• Filed: 10/22/1987
• Issued: 07/11/1989
• Est. Priority Date: 10/22/1987
• Status: Expired due to Term

• Current Assignee: The Chamberlain Group, Inc. (The Chamberlain Group LLC)
• Original Assignee: Multi-Elmac Company
• Inventors: Clark, John, Murray, James S., Martel, Brian J.
• Primary Examiner(s): Ro, Bentsu
• Application Number:
  US07/111,408
• Time in Patent Office: 628 Days
• Field of Search: 318/16, 318/282, 318/286, 318/626, 318/466, 318/467, 318/468, 318/560, 340/696, 340/310 R, 340/310 A, 340/310 CP
• US Class Current: 318/560
• CPC Class Codes: E05F 1/02 gravity-actuated , e.g. by use of counterweights
• CPC Class Codes: E05F 15/668 for overhead wings
• CPC Class Codes: E05F 15/77 using wireless control
• CPC Class Codes: E05Y 2800/00 Details, accessories and auxiliary operations not otherwise provided for
• CPC Class Codes: E05Y 2900/106 for garages
• CPC Class Codes: G07C 2009/00793 by Hertzian waves
• CPC Class Codes: G07C 2009/00928 for garage doors
• CPC Class Codes: G07C 9/00182 operated with unidirectional data transmission between data carrier and locks

Abstract

The present invention is an automatic garage door operator with a two button portable controller enabling a secure mode and control of a load remote from the door operator. In accordance with the normal operation of the secure button, actuation when the garage door is closed toggles a secure mode between secure and non-secure states. In the secure state the automatic gargage door operator does not move the door upon receipt of a door signal. To open the door when in the secure state the operator must first press the secure button to enter the non-secure state and then press the door button to open the door. The secure button has a secondary function when the garage door is open and the secure state is prohibited. Actuation of the secure botton when the door is open toggles the state of a load remote from the automatic garage door operator between an on state and an off state. This control is achieved via a signal modulated on the electric power main.

Claims

1. An automatic garage door operator for controlling the position of a garage door comprising:

a portable radio frequency transmitter having a door push button and a secure push button for transmitting a first encoded radio frequency signal upon actuation of said door push button and a second encoded radio frequency signal upon actuation of said secure push button;

a radio frequency receiver for generating a door signal upon receipt of said first encoded radio frequency signal and a secure signal upon receipt of said second encoded radio frequency signal;

a door actuator connected to the garage door for moving the garage door between an open position and a closed position and stopping between the open and closed positions;

a controller means connected to said radio frequency receiver and said door actuator having a secure mode, a non-secure mode, a load on mode and a load off mode for

controlling said door actuator to open the garage door upon receipt of said door signal when the garage door is closed and said controller means is in said non-secure mode,

controlling said door actuator to move the garage door in the direction opposite to the last motion when the garage door is stopped and said controller is in said non-secure mode,

controlling said door actuator to stop motion of the garage door upon receipt of said door signal when the garage door is moving,

inhibiting said door actuator to prevent movement of the garage door upon receipt of said door signal when said controller means is in said secure mode,

toggling between said secure mode and said non-secure mode upon receipt of said secure signal only when the garage door is closed,

generating a load ON signal upon receipt of said secure signal when the garage door is not closed and said controller means is in said load off mode, and

generating a load OFF signal upon receipt of said secure signal when the garage door is not closed and said controller means is in said load on mode;

a line carrier transmitter connected to said controller means and to an electric power main for modulating on the electric power main said load ON signal and said load OFF signal; and

a remote line carrier receiver connected to the electric power main and a load device for demodulating signals upon the electric power main and supplying electric power to the load device upon demodulation of said load ON signal and interrupting the supply of electric power to the load device upon demodulation of said load OFF signal.

2. The automatic garage door operator as claimed in claim 1, further comprising:

an electric lamp connected to said line carrier receiver as the load device, whereby said line carrier receiver controls said electric lamp.

3. The automatic garage door operator as claimed in claim 1, wherein:

said controller means further includes means for

generating a second load ON signal upon receipt of said door signal when said controller means is in said non-secure mode, and

generating a second load OFF signal a predetermined time after movement of the garage door has stopped;

said line carrier transmitter includes an encoder means for specifying at least two device codes and further includes means for modulating upon said electric power main a first device code followed by an ON signal upon receipt of said load ON signal, for modulating upon the electric power main said first device code followed by an OFF signal upon receipt of said load OFF signal, for modulating on the electric power main a second device code followed by said ON signal upon receipt of said second load ON signal, and for modulating on the electric power main said second device code followed by said OFF signal upon receipt of said second load OFF signal;

said remote line carrier receiver further includes a decoder means responsive only to said first device code, whereby said remote line carrier receiver is responsive only to ON signals and OFF signals preceded by said first device code; and

said automatic garage door operator further includes a second remote line carrier receiver connected to the electric power main and a second load device including a decoder means responsive only to said second device code, for demodulating signals upon the electric power main and supplying electric power to the second load device upon demodulation of said ON signal preceded by said second device code and interrupting the supply of electric power to the second load device upon demodulation of said OFF signal preceded by said second device code.

4. The automatic garage door operator as claimed in claim 1, further comprising:

a door position sensing means connected to the garage door for indicating whether the garage door is fully open, fully closed or between fully open and fully closed;

said controller means being connected to said door position sensing means and further includes means for

generating a second load ON signal when said door position sensing means indicates the garage door is leaving fully closed and said controller means is in said non-secure mode, and

generating a second load OFF signal when said door position sensing means indicates the garage door is fully closed;

said line carrier transmitter includes an encoder means for specifying at least two device codes and further includes means for modulating upon said electric power main a first device code followed by an ON signal upon receipt of said load ON signal, for modulating upon the electric power main said first device code followed by an OFF signal upon receipt said load OFF signal, for modulating on the electric power main a second device code followed by said ON signal upon receipt of said second load ON signal, and for modulating on the electric power main said second device code followed by said OFF signal upon receipt of said second load OFF signal;

said remote line carrier receiver further includes a decoder means responsive only to said first device code, whereby said remote line carrier receiver is responsive only to ON signals and OFF signals preceded by said first device code; and

said automatic garage door operator further includes a second remote line carrier receiver connected to the electric power main and a second load device including a decoder means responsive only to said second device code, for demodulating signals upon the electric power main and supplying electric power to the second load device upon demodulation of said ON signal preceded by said second device code and interrupting the supply of electric power to the second load device upon demodulation of said OFF signal preceded by said second device code.

5. The automatic garage door operator as claimed in claim 1:

further comprises a door position sensing means connected to the garage door for indicating whether the garage door is fully open, fully closed or between fully open and fully closed;

said controller means being connected to said door position sensing means and further includes means for

generating a second load ON signal upon receipt of said door signal when said controller means is in said non-secure mode,

generating a second load OFF signal a predetermined time after movement of the garage door has stopped,

generating a third load ON signal when said door position sensing means indicates the garage door is leaving fully closed and said controller means is in said non-secure mode, and

generating a third load OFF signal when said door position sensing means indicates the garage door is fully closed;

said line carrier transmitter includes an encoder means for specifying at least a first, a second and a third device code and further includes means for modulating upon the electric power main said first device code followed by an ON signal upon receipt of said load ON signal, for modulating upon the electric power main said first device code followed by an OFF signal upon receipt of said load OFF signal, for modulating upon the electric power main said second device code followed by an ON signal upon receipt of said second load ON signal, for modulating upon the electric power main said second device code followed by an OFF signal upon receipt of said second load OFF signal, for modulating upon the electric power main said third device code followed by an ON signal upon receipt of said third load ON signal, for modulating upon the electric power main said third device code followed by an OFF signal upon receipt of said third load OFF signal;

said remote line carrier receiver further includes a decoder means responsive only to said first device code, whereby said remote line carrier receiver is responsive only to ON an OFF signals preceded by said first device code;

said automatic garage door operator further comprises a second remote line receiver connected to the electric power main and a second load device, said second remote line receiver including a second decoder means responsive only to said second device code for demodulating signals upon the electric power main and supplying electric power to the second load device upon demodulation of said ON signal preceded by said second device code and interrupting the supply of electric power to the second load device upon demodulation to said signal preceded by said second device code; and

said automatic garage door operator further comprises a third remote line receiver connected to the electric power main and a third load device, said third remote line receiver including a third decoder means responsive only to said third device code for demodulating signals upon the electric power main and supplying electric power to the third load device upon demodulation of said on signal preceded by said third device code and interrupting the supply of electric power to the third load device upon demodulation to said OFF signal preceded by said third device code.

6. An automatic garage door operator for controlling the position of a garage door comprising:

a portable radio frequency transmitter having a door push button and a secure push button for transmitting a first encoded radio frequency signal upon actuation of said door push button and a second encoded radio frequency signal upon actuation of said secure push button;

a radio frequency receiver for generating a door signal upon receipt of said first encoded radio frequency signal and a secure signal upon receipt of said second encoded radio frequency signal;

a door actuator connected to the garage door for moving the garage door between an open position and a closed position and stopping between the open and closed positions;

a manual mode switch operable between a load only mode and a load/secure mode;

a controller means connected to said radio frequency receiver, said door actuator and said manual mode switch, said controller means having a secure mode, a non-secure mode, a load on mode and a load off mode for

controlling said door actuator to open the garage door upon receipt of said door signal when the garage door is closed and said controller means is in said non-secure mode,

controlling said door actuator to move the garage door in the direction opposite to the last motion when the garage door is stopped and said controller means is in said non-secure mode,

controlling said door actuator to stop motion of the garage door upon receipt of said door signal when the garage door is moving,

inhibiting said door actuator to prevent movement of the garage door upon receipt of said door signal when said controller means is in said secure mode,

toggling between said secure mode and said non-secure mode upon receipt of said secure signal only when the garage door is closed and said manual mode switch is in the load/secure mode,

generating a load ON signal upon receipt of said secure signal when the garage door is not closed, said manual mode switch is in said load/secure mode and said controller means is in said load off mode,

generating a load OFF signal upon receipt of said secure signal when the garage door is not closed, said manual mode switch is in said load/secure mode and said controller means is in said load on mode;

generating a load ON signal upon receipt of said secure signal when said manual mode switch is in said load only mode and said controller means is in said load off mode,

generating a load OFF signal upon receipt of said secure signal when said manual mode switch is in said load only mode and said controller means is in said load on mode;

a line carrier transmitter connected to said controller means and to an electrical power main for modulating upon the electrical power main said load ON signal and said load OFF signal; and

a remote line carrier receiver connected to the electric power main and a load device for demodulating signals upon the electric power main and supplying electric power to the load device upon demodulation of said load ON signal and interrupting the supply of electrical power to the load device upon demodulation of said load OFF signal.

7. The automatic garage door operator as claimed in claim 6, further comprising:

an electric lamp connected to said line carrier receiver as the load device, whereby said line carrier receiver controls said electric lamp.

8. The automatic garage door operator as claimed in claim 6, wherein:

said controller means further includes means for

generating a second load ON signal upon receipt of said door signal when said controller means is in said non-secure mode,

generating a second load OFF signal a predetermined time after movement of the garage door has stopped,

said line carrier transmitter includes an encoder means for specifying at least two device codes and further includes means for modulating upon the electric power main a first device code followed by an ON signal upon receipt of said load ON signal, for modulating upon the electric power main said first device code followed by an OFF signal upon receipt of said load OFF signal, for modulating upon the electric power main a second device code followed by an ON signal upon receipt of said second load ON signal, and for modulating upon the electric power main said second device code followed by an OFF signal upon receipt of said second load OFF signal;

said remote line carrier receiver further includes a decoder means responsive only to said first device code, whereby said remote line carrier receiver is responsive only to ON and OFF signals preceded by said first device code; and

said automatic garage door operator further comprises a second remote line receiver connected to the electric power main and a second load device, said second remote line receiver including a second decoder means responsive only to said second device code for demodulating signals upon the electrical power main and supplying electric power to the second load device upon demodulation of said ON signal preceded by said second device code and interrupting the supply of electric power to the second load device upon demodulation to said OFF signal preceded by said second device code.

9. The automatic garage door operator as claimed in claim 6

further comprises a door position sensing means connected to the garage door for indicating whether the garage door is fully open, fully closed or between fully open and fully closed;

said controller means being connected to said door position sensing means and further includes means for

generating a second load ON signal when said door position sensing means indicates the garage door is leaving fully closed and said controller means is in said non-secure mode, and

generating a second load OFF signal when said door position sensing means indicates the garage door is fully closed;

said line carrier transmitter includes an encoder means for specifying at least two device codes and further includes means for modulating upon the electric power main a first device code followed by an ON signal upon receipt of said load ON signal, for modulating upon the electric power main said first device code followed by an OFF signal upon receipt of said load OFF signal, for modulating upon the electric power main a second device code followed by an ON signal upon receipt of said second load ON signal, and for modulating upon the electric power main said second device code followed by an OFF signal upon receipt of said second load OFF signal;

said remote line carrier receiver further includes a decoder means responsive only to said first device code, whereby said remote line carrier receiver is responsive only to ON and OFF signals preceded by said first device code; and

said automatic garage door operator further comprises a second remote line receiver connected to the electric power main and a second load device, said second remote line receiver including a second decoder means responsive only to said second device code for demodulating signals upon the electric power main and supplying electric power to the second load device upon demodulation of said ON signal preceded by said second device code and interrupting the supply of electric power to the second load device upon demodulation to said OFF signal preceded by said second device code.

10. The automatic garage door operator as claimed in claim 6

further comprises a door position sensing means connected to the garage door for indicating whether the garage door is fully open, fully closed or between fully open and fully closed;

said controller means being connected to said door position sensing means and further includes means for

generating a second load ON signal upon receipt of said door signal when said controller means is in said non-secure mode,

generating a second load OFF signal a predetermined time after movement of the garage door has stopped,

generating a third load ON signal when said door position sensing means indicates the garage door is leaving fully closed and said controller means is in said non-secure mode, and

generating a third load OFF signal when said door position sensing means indicates the garage door is fully closed;

said line carrier transmitter includes an encoder means for specifying at least a first, a second and a third device code and further means for modulating upon the electric power main said first device code followed by an ON signal receipt of said load ON signal, for modulating upon the electric power main said first device code followed by an OFF signal upon receipt of said load OFF signal, for modulating upon the electric power main said second device code followed by an ON signal upon receipt of said second load ON signal, for modulating upon the electric power main said second device code followed by an OFF signal upon receipt of said second load OFF signal, for modulating upon the electric power main said third device code followed by an ON signal upon receipt of said third load ON signal, for modulating upon the electric power main said third device code followed by an OFF signal upon receipt of said third load OFF signal;

said remote line carrier receiver further includes a decoder means responsive only to said first device code, whereby said remote line carrier receiver is responsive only to ON and OFF signals preceded by said first device code;

said automatic garage door operator further comprises a second remote line receiver connected to the electric power main and a second load device, said second remote line receiver including a second decoder means responsive only to said second device code for demodulating signals upon the electric power main and supplying electric power to the second load device upon demodulation of said ON signal preceded by said second device code and interrupting the supply of electric power to the second load device upon demodulation to said OFF signal preceded by said second device code; and

said automatic garage door operator further comprises a third remote line receiver connected to the electric power main and third load device, said third remote line receiver including a third decoder means responsive only to said third device code for demodulating signals upon the electric power main and supplying electric power to the third load device upon demodulation of said ON signal preceded by said third device code and interrupting the supply of electric power to the third load device upon demodulation to said OFF signal preceded by said third device code.