POWER SAVING SHREDDER

• US 20100059612A1
• Filed: 06/16/2009
• Published: 03/11/2010
• Est. Priority Date: 06/16/2008
• Status: Active Grant

• Current Assignee: Michilin Prosperity Company Limited (Michilin Prosperity)
• Original Assignee: Michilin Prosperity Company Limited (Michilin Prosperity)
• Inventors: HUANG, Simon
• Granted Patent: US 7,971,812 B2
• Time in Patent Office: Days
• US Class Current: 241/33
• CPC Class Codes: B02C 18/0007 specially adapted for disintegrating documents
• CPC Class Codes: B02C 2018/0023 Switching devices
• CPC Class Codes: B02C 2018/164 Prevention of jamming and/or overload

Abstract

The present invention discloses a shredder which does not waste energy in standby mode. Power is applied to the components of the shredder only when material to be shredded is inserted into the shredder throat or when the unit is switched into reverse to clear a jam in the shredder.

Claims

1. A power saving shredder comprising;

a) a base;

b) a housing;

c) a shredding mechanism inside the housing;

d) a switch on the housing with automatic and reverse modes;

e) a throat that guides material to be shredded into the shredding mechanism;

f) a finger in the throat which allows material to be shredded to pass into said shredding mechanism;

g) a spring which biases the finger to extend into the throat;

h) a rod which depresses a lever when force is applied by the finger, wherein the lever activates a button in a micro-switch such that when the micro-switch is activated the shredder components and shredder motor are turned on, and when the micro-switch is not activated the shredder components and the shredder motor are turned off.

2. The power saving shredder of claim 1, wherein the switch on the housing is coupled to a member such that when reverse mode is engaged, the member rotates around a joint and activates the micro-switch.

3. A power saving shredder comprising;

a) a base;

b) a housing;

c) a shredding mechanism inside said housing;

d) a throat that guides material to be shredded into said shredding mechanism;

e) a switch for setting either automatic or reverse modes wherein if the switch is set to reverse mode the shredder motor runs in reverse;

f) a micro-switch in the throat that turns on power to all shredder components only when the material to be shredded activates the micro-switch and the switch is set to automatic; and

turns off power to all shredder components when the micro-switch is not activated.

4. A power saving shredder comprising;

a) a base;

b) a housing;

c) a shredding mechanism inside said housing;

d) a throat that guides material to be shredded into said shredding mechanism;

e) a switch for setting either automatic or reverse modes wherein if the switch is set to reverse mode the shredder motor runs in reverse;

f) a micro-switch in the throat that turns on power to shredder components only when the material to be shredded activates the micro-switch and the switch is set to automatic; and

turns off power to the shredder components when the micro-switch is not activated, wherein the micro-switch has a delay circuit to ensure that the shredder components remain on after the micro-switch is disengaged; and

g) a photodetector which activates a shredder motor;

wherein the photodetector has a built in delay to ensure that the material that passes by the photodetector is completely shredded.