US 8,119,941 B2 · Appliance timer

Abstract

An appliance timer operable in a selection mode and an operation mode includes a shaft assembly, a switch assembly, a cam device, a bi-directional motor, and a display device. The shaft assembly is operable to select an operation cycle and to drive the display device in the selection mode. The motor rotates in a first rotational direction and a second rotational direction opposite to the first rotational direction in the operation mode. When the motor rotates in the first rotational direction, the motor drives the cam device to operate the switch assembly to actuate or deactivate a plurality of electrical circuits associated with a plurality of appliance functions. When the motor rotates in the second rotational direction, the motor drives the display device to indicate an operational status of the appliance. The rotation of the motor is controlled by a microprocessor.

Claims23

Dependent claims

A timer comprising:

a switch assembly for controlling a plurality of appliance functions;
a display device;
and
a bi-directional motor for operating the switch assembly and the display device, wherein when the motor rotates in a first rotational direction, the motor operates the switch assembly, and when the motor rotates in a second rotational direction opposite to the first rotational direction, the motor operates the display device.

1 more element

Dependencies are inferred from the claim text.

Appliance timer

Life of this patent

Appliance timer

Life of this patent

Abstract

Claims23