Patent ID: 11920375
Assignee: SCHLAGE LOCK COMPANY LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 19:
20. An apparatus comprising:
a spring cage, comprising:
a housing;
a first hub rotatably mounted in the housing for rotation about a longitudinal axis, the first hub having a first home position and a first rotated position;
a second hub rotatably mounted in the housing for rotation about the longitudinal axis, the second hub having a second home position and a second rotated position; and
a clock spring engaged with each of the first hub and the second hub, wherein the clock spring comprises:
a first leg engaged with the first hub;
a second leg engaged with the second hub; and
a body portion wound about the longitudinal axis in a spiral; and

a spindle engaged with each of the first hub and the second hub via a corresponding and respective lost rotational motion connection;
wherein the clock spring is configured to bias the first hub toward the first home position when the first hub is rotated to the first rotated position; and
wherein the clock spring is configured to bias the second hub toward the second home position when the second hub is rotated to the second rotated position.