Magnetic pick-up tool

{
  "publication_number": "US6677845B1",
  "country": "US",
  "kind": "B1",
  "title": "Magnetic pick-up tool",
  "abstract": "A magnetic pick-up tool, which preferably features a magnet retained on its non-exposed sides within a ferrous-containing carrier. The ferrous-containing carrier redirects the magnetic forces issuing from the magnet toward the exposed surface area, significantly increasing a magnet's strength without the need for increasing magnet size. In one embodiment, the pick-up tool features a threaded carrier, mated to a sleeve member in a manner allowing the sleeve member to be adjustably positioned relative to the magnet and carrier by rotation of the sleeve member in the desired direction.",
  "claims": [
    "1. A magnetic pick-up tool assembly comprising, in combination: a magnet having an exposed pick-up area, a rear area opposite said exposed pick-up area, and side surface areas disposed between said exposed pick-up area and said rear area; a carrier fixedly coupled to said side surface-areas of said magnet; wherein said carrier comprises a ferrous-containing material; wherein an exterior surface of said carrier is threaded and wherein said assembly further comprises a ring adapted to engage said threaded exterior surface of said carrier so that a position of said ring relative to said magnet may be altered by rotating said ring about said carrier; and a telescoping shaft attached to at least one of said rear area and said carrier.",
    "2. A magnetic pick-up tool assembly comprising, in combination: a magnet having an exposed pick-up area, a rear area opposite said exposed pick-up area, and side surface areas disposed between said exposed pick-up area and said rear area; a carrier fixedly coupled to said side surface areas of said magnet; wherein an exterior surface of said carrier is threaded; a ring adapted to engage said threaded exterior surface of said carrier so that a position of said ring relative to said magnet may be altered by rotating said ring about said carrier; and a telescoping shaft attached to at least one of said rear area and said carrier."
  ],
  "cpc": [
    "H01F 7/0257"
  ],
  "assignees": [
    "SUMMIT TOOL COMPANY"
  ],
  "filing_date": "2000-01-19",
  "publication_date": "2004-01-13",
  "grant_date": "2004-01-13",
  "priority_date": "2000-01-19",
  "application_number": "US-48703000-A",
  "family_id": "29780615",
  "citations": [
    "US2878342A",
    "US2947563A",
    "US3041697A",
    "US4373967A",
    "US5821840A",
    "US5945901A"
  ]
}