Power tool with remote stop

• US 7,211,972 B2
• Filed: 05/05/2006
• Issued: 05/01/2007
• Est. Priority Date: 11/22/2002
• Status: Expired due to Fees

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Weston, Jeffrey D., Garcia, Jaime E.
• Primary Examiner(s): Ro; Bentsu
• Application Number:
  US11/429,366
• Publication Number:
  US 20060197483A1
• Time in Patent Office: 361 Days
• Field of Search: 318 16- 17, 318/551, 318/563, 388/937, 307/112, 307139-140, 307/326
• US Class Current: 318/16
• CPC Class Codes: B23D 59/001 Measuring or control devices, e.g. for automatic control of work feed pressure on band saw blade measuring in general G01; controlling in general G05
• CPC Class Codes: B23Q 11/0092 actuating braking or stopping means
• CPC Class Codes: B25F 5/00 Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
• CPC Class Codes: G05B 9/02 electric
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared
• CPC Class Codes: Y10S 388/937 Hand tool

Abstract

The present invention is directed to a power tool including a wireless remote stop for terminating the flow of electricity to an electric motor. The electric motor is configured for operating a working element assembly of a power tool, such as an arbor/circular saw blade included a table saw. In an embodiment, a remote stop is a hand-held fob, having a housing and a button. Alternatively, the remote stop may be implemented as a foot pedal apparatus, for being disposed on a shop floor.

Claims

1. A power tool, comprising:

a working tool assembly configured to receive a working tool for performing a task on a workpiece;

an electric motor operatively connected to the working tool assembly;

means for remotely terminating the flow of electricity to the electric motor upon receipt of a wireless signal, said means comprising a first switch for interrupting power supplied to the electric motor, a receiver for receiving the wireless signal; and

a remote controller wirelessly coupled with the receiver, the remote controller comprising a transmitter configured to transmit the wireless signal, and a second switch for initiating transmission of the wireless signal.

2. The power tool of claim 1, further comprising a fob housing for enclosing the remote controller.

3. The power tool of claim 1, further comprising a foot pedal coupled to the terminating means.