Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Patent
1996-08-28
1997-09-09
Dorner, Kenneth J.
Movable or removable closures
With operator for movably mounted closure
Operator drives closure along guide
49199, 49200, E05F 1134, E05F 1140
Patent
active
056643721
ABSTRACT:
A garage door operator is disclosed to have a front coupling for a threaded screw of the operator and the rotor of the motor. The coupling includes a first coupling device that is a unitary coupling member with opposing recesses for receiving each of the rotor shaft and an end portion of the screw. The unitary coupling member thereby connects the screw to the motor for torque transmission from the motor. The second coupling device includes a thrust containment device that is supported on the screw, and an intermediate assembly disposed between the thrust containment device and an end portion of the guide rail of the door operator. A retainer component of the intermediate assembly restricts expansion of the thrust containment device.
REFERENCES:
patent: 2056174 (1936-10-01), Earhuff et al.
patent: 2944810 (1960-07-01), Stuettig et al.
patent: 3990802 (1976-11-01), Corona
patent: 4131830 (1978-12-01), Lee et al.
patent: 4362412 (1982-12-01), Kunz
patent: 4821456 (1989-04-01), Nogaki
Pp. 7, 8, and 25 of the Stanley Owner's Manual for its screw drive door opener model No. SD550.F00.
Copy of Statement filed Oct. 12, 1996 in Serial No. 08/409,425.
Prior Commercial Version of Chamberlain Garage Door Opener System G6463 (two sheets).
Dragomir Nicholas A.
Stottsberry James William
White James Allen
Williams Gregory Ernest
Cohen Curtis
Dorner Kenneth J.
GMI Holdings Inc.
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