Paper shredder ac/dc motor controller
AssigneeAurora Office Equipment Co., Ltd. Shanghai
InventorsBin Zhang, Tao Kuei Chuang, Yung Kang Tso, Chung Shih Tsai
Life of this patent
Estimating the term…
Abstract
A paper shredder controller, with an all-analog controller including a power supply circuit, coupled to a door open switch circuit, an automatic forward control circuit, an automatic reverse control circuit, and a wastebin full circuit. The paper shredder controller includes an overload circuit, a forward-reverse control and relays circuit, a forward-reverse model delay setting circuit, and an overheating protection circuit. Further includes a POWER indicator light; a DOOR OPEN light; an AUTOMATIC FORWARD light; an OVERHEATING light, and a WASTEBIN FULL light.
Claims12
A paper shredder controller, comprising:
- a power supply circuit, coupled to:
- a door open switch circuit;
- an automatic forward control circuit;
- an automatic reverse control circuit;
- and
- a wastebin full circuit,
- wherein the controller is an all-analog controller and lacks a programmable digital integrated circuit.
A paper shredder with a housing;
- comprising:
- a motor within the housing;
- counter-rotating shredder blades coupled to the motor and covered by the housing;
- a wastebin coupled to the housing and disposed beneath the shredder blades;
- and
- an all-analog shredder controller board coupled to the housing, and configured to operate the paper shredder in an automatic forward direction and an automatic reverse direction.
A paper shredder, comprising:
- an all-analog controller that lacks a programmable digital integrated circuit coupled to a power supply circuit, the power supply circuit coupled to and the all-analog controller controlling:
- a door open switch circuit;
- an automatic forward control circuit;
- an automatic reverse control circuit;
- a wastebin full circuit;
- an overload circuit;
- a forward-reverse control and relays circuit;
- a forward-reverse model delay setting circuit;
- and
- a motor overheating protection circuit.
Dependencies are inferred from the claim text.