Patent ID: 11879286
Assignee: HALL LABS LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A motor unit for an overhead door opener, which opener comprises a rotating shaft that rotates in one direction when the overhead door is opened and an opposite direction when the overhead door is closed, the motor unit comprising:
a motor;
transmission components configured to transmit power from the motor to the shaft;
a case having multiple vertical panels, the case housing the motor and the transmission components; and
a guide bearing held by each of the multiple vertical panels, each guide bearing configured to rotatably accommodate the shaft, with the case housing the motor unit thereby supported by the shaft;
wherein the transmission components comprise a two-piece sprocket fastened together around the shaft at any point along the shaft, so that rotation of the sprocket causes rotation of the shaft.