US 11,913,273 B2
Motorized door assembly with safety features for heated cabinet
Craig Whitaker, Fairfield, OH (US); Edward Leonard Weaver, II, Milford, OH (US); Scott A. Zieker, Cincinnati, OH (US); Charles Eldon Warner, Cincinnati, OH (US); and Ronald G. Knollman, Mt. Healthy, OH (US)
Assigned to APEX INDUSTRIAL TECHNOLOGIES LLC, Mason, OH (US)
Filed by APEX INDUSTRIAL TECHNOLOGIES LLC, Mason, OH (US)
Filed on May 15, 2018, as Appl. No. 15/980,063.
Claims priority of provisional application 62/506,493, filed on May 15, 2017.
Prior Publication US 2018/0328099 A1, Nov. 15, 2018
Int. Cl. E05F 15/20 (2006.01); E05F 15/73 (2015.01); E05F 15/611 (2015.01); F16D 7/02 (2006.01); E05F 15/40 (2015.01); E05F 15/43 (2015.01); E05F 15/41 (2015.01); E05F 15/614 (2015.01); F16D 7/04 (2006.01)
CPC E05F 15/73 (2015.01) [E05F 15/40 (2015.01); E05F 15/41 (2015.01); E05F 15/43 (2015.01); E05F 15/611 (2015.01); E05F 15/614 (2015.01); F16D 7/025 (2013.01); F16D 7/044 (2013.01); E05F 2015/435 (2015.01); E05F 2015/765 (2015.01); E05Y 2201/216 (2013.01); E05Y 2600/41 (2013.01); E05Y 2900/308 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A motorized door assembly comprising:
a door positioned between opposing jambs of a door frame and movable between an open position and a closed position, wherein the door is pivotable about a pivot axis extending across the opposing jambs; and
a motor assembly mounted adjacent to the door, the motor assembly comprising:
an electric motor;
a plurality of drive gears;
a slip clutch; and
a driven shaft operably connected to the door to pivot the door about the pivot axis;
wherein the slip clutch includes a clutch plate that is slideable along the driven shaft, a drive plate driven by the electric motor via the drive gears, and a clutch spring urging the clutch plate into engagement with the drive plate, the clutch plate having a profiled face and the drive plate having a counter-profiled face for engagement with the profiled face.