Power tool lockdown device

• US 7,750,509 B2
• Filed: 12/27/2007
• Issued: 07/06/2010
• Est. Priority Date: 05/10/2004
• Status: Expired due to Fees

• Current Assignee: Gary Anderson
• Original Assignee: Gary Anderson
• Inventors: Anderson, Gary
• Primary Examiner(s): DeBeradinis; Robert L.
• Application Number:
  US12/005,288
• Publication Number:
  US 20090219118A1
• Time in Patent Office: 922 Days
• Field of Search: 307/140, 307/115
• US Class Current: 307/115
• 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: E05B 73/00 Devices for locking portable objects against unauthorised removal; Miscellaneous locking devices motorcycle helmets A42B3/0413; supporting arrangements specially adapted for fastening helmets B62J11/24; gun racks A47B81/005; showcases with theft protection A47F3/002; anti-theft means for peg-boards, grids or rods for hanging merchandise A47F5/0861; show stands, hangers, shelves with provision against unauthorised removal A47F7/024; for self-service hand-carts A47F10/04; locking skis A63C11/004; locking bolts, nuts or pins F16B41/00
• CPC Class Codes: H01H 27/00 Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings combined with plug-and-socket connectors H01R13/70; with current-carrying plug H01R31/08
• CPC Class Codes: H01H 9/06 Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner

Abstract

Disclosed is an apparatus for selectively permitting electricity to flow to a power tool having a power cord. The apparatus comprises a body having an exterior surface and having a passage therethrough. The passage contains an electrical relay having an electrical input side and an electrical output side. A switch on the exterior surface of the body selectively closes the electrical relay upon activation by a user. A mounting portion on the body is adapted for securing the body to the power tool and a power receiving portion in the body receives the power cord of the power tool. The mounting portion has transfer wires associated therewith in electrical connection between the output side of the relay and a power switch of the power tool. The power cord is in electrical connection with the electrical input side of the relay.

Claims

1. An apparatus for selectively permitting electricity to flow to a power tool having a power cord, the apparatus comprising:

a body having an exterior surface and having a passage therethrough, said passage containing an electrical relay having an electrical input side and an electrical output side;

a switch on said exterior surface of said body for selectively closing said electrical relay upon activation by a user;

a mounting portion on said body adapted for securing said body to said power tool, said mounting portion having transfer wires associated therewith in electrical connection between said output side of said relay and a power switch of the power tool; and

a power receiving portion in said body for receiving the power cord of the power tool, the power cord being in electrical connection with said electrical input side of said relay.

2. The apparatus of claim 1 wherein said mounting portion comprises a neck extending from said body and having a retaining portion at a distal end thereof.

3. The apparatus of claim 2 wherein said neck includes a pivotal connection to said body.

4. The apparatus of claim 3 wherein said neck extends from said body about an axis wherein said pivotal connection permits rotation of said axis relative to said body.

5. The apparatus of claim 3 wherein said pivotal connection comprises a spherical bearing.

6. The apparatus of claim 2 wherein said retaining portion comprises at least one flange segment.

7. The apparatus of claim 6 wherein said retaining portion comprises a plurality of flange segments.

8. The apparatus of claim 6 wherein said at least one flange segments are radially biased away from said neck.

9. The apparatus of claim 6 wherein said at least one flange segments are selectively retractable.

10. The apparatus of claim 2 wherein said retaining portion comprises a radially biased ring.

11. The apparatus of claim 1 wherein said mounting portion and said power receiving portion of said body comprise opposed first and second ends of said body.

12. The apparatus of claim 1 wherein said body comprises a substantially cylindrical body.

13. The apparatus of claim 1 wherein said switch comprises a keyed switch.

14. The apparatus of claim 13 wherein said keyed switch is rotatable between energized and de-energized positions.

15. The apparatus of claim 1 wherein said keyed switch includes said relay.

16. The apparatus of claim 1 further comprising a battery for powering said relay.