MOTORIZED DOOR ASSEMBLY WITH SAFETY FEATURES FOR HEATED CABINET

• Main Authors: ZIEKER, Scott A, KNOLLMAN, Ronald G, WHITAKER, Craig, WARNER, Charles Eldon, WEAVER, Edward Leonard, II
• Format: Patent
• Language: English; French; German
• Published: 27.09.2023
• Subjects: BAKERS' OVENS; BAKING; CHECKS FOR WINGS; DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; EDIBLE DOUGHS; FIXED CONSTRUCTIONS; HUMAN NECESSITIES; KEYS; LOCKS; MACHINES OR EQUIPMENT FOR BAKING; SAFES; WINDOW OR DOOR FITTINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING

Motorized door assemblies having a door pivoting about a pivot axis extending across opposing jambs. In one aspect, the assembly includes a motor assembly having a motor, drive gears, slip clutch, and driven shaft connected to the door to pivot it about the pivot axis. The slip clutch includes a clutch plate slideable along the driven shaft, a drive plate driven by the motor via the drive gears, and a clutch spring urging the clutch plate into engagement with the drive plate, where the clutch and drive plates have profiled and counter-profiled faces. In another aspect, a break beam emitter and receiver are mounted to respective ones of the opposing jambs along a beam axis extending parallel to the pivot axis and proximate to an edge of the door opposite the pivot axis. Interruption of a light beam projected therebetween alters operation of a motor assembly.