Patent ID: 11970899
Assignee: HALL LABS LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
1. A mechanism for opening and closing an overhead door, comprising:
a drive loop;
a motor with a drive shaft;
a drive wheel for driving the drive loop; and
a one-way bearing coupling the drive shaft to the drive wheel, wherein the one-way bearing is configured to transmit torque from the motor to the drive wheel, as the motor rotates the drive shaft in a first rotational direction to raise the overhead door, and wherein the one-way bearing is configured so that torque is not transmitted to the drive wheel as the motor rotates the drive shaft in a second rotational direction opposite the first rotational direction;
whereby the motor applies torque through the one-way bearing to raise the overhead door and to support the weight of the overhead door while lowering the overhead door.