Door operator system

A door operator system for an upward acting sectional or one piece (California-type) garage door includes a DC variable speed motor directly connected to a drive mechanism for moving the door between open and closed positions. A motor control circuit includes circuit components for reversing the dir...

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Bibliographische Detailangaben
Hauptverfasser:	WAGGAMON, DENNIS W, WILLIAMS, GREGORY E, KASS, ROBERT C, REED, BRETT A
Format:	Patent
Sprache:	eng
Schlagworte:	CHECKS FOR WINGS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION ELECTRICITY FIXED CONSTRUCTIONS FUNCTIONAL ELEMENTS OF SUCH SYSTEMS GENERATION INDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICESFOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTOOPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOTOTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THEWING KEYS LOCKS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING SAFES WINDOW OR DOOR FITTINGS WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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