U.S. Patent No. D567,319

Issued: April 22, 2008
Title: Divot tool
Inventor(s): Richard L. Beard, Portland, Maine

Abstract

      The ornamental design for a divot tool, as shown and described.

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U.S. Patent No. 7,337,861

Issued: March 4, 2008
Title: Method and a device for preventing pipeskidding
Inventor(s): Tor Egil Mong, Vigrestad, Norway; Tommy Johnsen, Hafrsfjord, Norway

Abstract

      A method and device for preventing a pipe string (5) clampingly arranged in a slips (2) from slipping out of the slips (2) in the event of the pipe string (5) slipping in the slips (2), wherein a pipe clamp/tong (22) is clamped, preferably hydraulically, onto the pipe string (5) at a position above the slips (2) and maintained in the clamped state for essentially as long as the pipe string (5) is held by the slips (2), the pipe clamp/tong (22), in the event of the pipe string (5) slipping in the slips (2), being displaced together with the pipe string (5) until the pipe clamp/tong (22) stops against the wedges (16) of the slips (2).

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