Ferrous fastener starter and ferrous object locator

• US 7,183,885 B2
• Filed: 09/20/2004
• Issued: 02/27/2007
• Est. Priority Date: 09/20/2004
• Status: Active Grant

• Current Assignee: John Nellessen Sr
• Original Assignee: John Nellessen Sr
• Inventors: Nellessen, John Sr., Nellessen, John Jr.
• Primary Examiner(s): Enad; Elvin
• Assistant Examiner(s): Rojas; Bernard
• Application Number:
  US10/946,438
• Publication Number:
  US 20060061444A1
• Time in Patent Office: 890 Days
• Field of Search: 335302-306, 324/662, 324/326, 324/67
• US Class Current: 335/302
• CPC Class Codes: H01F 7/0252 PM holding devices H01F7/021, H01F7/0215, H01F7/0226 take precedence
• CPC Class Codes: H01F 7/0257 Lifting, pick-up magnetic objects

Abstract

A device for locating ferrous objects that are visually obscured by a non-magnetic surface material and for temporarily magnetically holding a ferrous fastener in position to be affixed including at least on magnet having sufficient strength to attract and locate the ferrous object to be detected, hold the weight of the device onto the non-magnetic surface and the strength to hold at least one fastener to be affixed in an affixing position with the affixing position being at least ¼″ away from the magnetic center of the magnet and directly vertically above or below the magnetic center.

Claims

1. A device for locating ferrous objects that are visually obscured by a non-magnetic surface material and for temporarily magnetically holding a ferrous fastener in position to be affixed including at least on magnet having sufficient strength to attract and locate the ferrous object to be detected that is visually obscured by the non-magnetic surface material, hold the weight of the device onto the non-magnetic mounting surface by attracting the ferrous object disposed behind the non-magnetic mounting surface and the strength to hold at least one fastener to be affixed in an affixing position with the affixing position being at least ¼

″

away from the magnetic center of the magnet and directly vertically above or below the magnetic center.

2. The device of claim 1 wherein the device while suspended magnetically from the visually obscured fastener, will pivot on the magnetic center, rotating the heavier end down by gravitational force and simultaneously rotating the linear groove into a vertical position above or below the magnetic center.

3. The device of claim 1 wherein said at least one magnet is disposed at least partially in a non-magnetic enclosure.

4. The device of claim 1 wherein said at least one magnet is multiple magnets disposed in a non-magnetic enclosure.

5. The device of claim 1 wherein said at least one magnet is affixed to a ferrous metal plate, said plate being no larger than 3 times wider, 3 times longer and 1 time as thick as said magnet, said device being mostly attracting towards the ferrous object to be located and mostly non-magnetic on the side away from the ferrous object.

6. The device of claim 1 wherein said device has a through hole to attach a plumb line.

7. The device of claim 1 wherein the distance from the magnetic center pivot to the fastener starter groove is adjustable by making the at least partial enclosure a longer solid piece or by making the at least partial enclosure length adjustable by mechanical means.

8. The device of claim 1 wherein the device while suspended magnetically from the visually obscured fastener, will pivot on the magnetic center, rotating the heavier end down by gravitational force and simultaneously rotating the linear groove into a vertical position above or below the magnetic center, having multiple magnets, having a ferrous metal plate, being disposed at least partially in a non-magnetic enclosure, with a through hole to attach a plumb line.