(12) Ulllted States Patent (10) Patent No.: US 7,967,541 B2 Stroshein et al. (45) Date of Patent: Jun. 28, 2011 (54) APPARATUS FOR HANDLING AND 414/734, 735, 744.2, 744.3, 744.6, 751.1, RACKING PIPES 917; 901/14, 48 See application file for complete search history. (75) Inventors: William John Stroshein, Calgary (CA); 56 R f C.t d David Louis Richard, Calgary (CA); ( ) e erences I e Monte Neil Wright, Calgary (CA); U.S. PATENT DOCUMENTS Leon Keith Jantzen, Calgary (CA); 1,118,817 A ,1 U/1914 Sheehan et al‘ “““““““ H 212/260 Imad Assaf, Calgary (CA) 2,662,797 A >1 12/1953 Moon _________________________ __ 182/114 3,633,771 A 1/1972 Woolslayer et al. (73) Assignee: Weatherford Canada Partnership, 3,710,954 A 1;1973 Hutcglifion 1 3,840,128 A 101974 Swo 0 a, Jr. eta. Ca1gary’A1bem‘ (CA) 3,885,679 A 5/1975 SWO1)OC1a, Ji. 61 al. _ _ _ _ _ 4,013,178 A 3/1977 Brown et al. ( * ) Notice: Subject to any disclaimer, the term ofthis 4,077,525 A 3/1973 Caiiegan oi a1, patent is extended or adjusted under 35 4,117,941 A 10/1978 McCleskey, Jr. et al. U.S.C. 154(b) by 189 days. 4,163,625 A * 8/1979 laiikiiis ~~~~~~~~~~~~~~~ ~~ 414/2263 4,177,002 A * 12/1979 Motoda et al. ...... .. 414/751.1 <21) APP1~N°-1 12/385,282 ii‘ji7i3‘j§Z§ Q ,, 3/1321 §i‘iff,‘;"I,‘Z§f“1j ,,,,,,,,,,,,,,,, ,, 18,/114 4,531,875 A 7/1985 Krueger (22) Filed: Apr. 3, 2009 4,610,315 A * 9/1986 Koga et al. .................... .. 175/85 4,621,974 A 11/1986 Krueger <65) P“°iP"‘°'*°a“°" Data 33833133 2‘ 3/1335 82215132, G1 ,1. US 2009/0257848 A1 Oct. 15,2009 4,765,401 A 8/1988 Bayadiiaff 5,037,267 A * 8/1991 Warner et al. ....... .. 414/744.6 Related U.S.Application Data Q ,1, giezczli ““““““““““““““ H 212/291 (63) Continuation-in-part of application No. 11/785,446, 5’458’454 A 10/1995 _SOrOkan filed O11 Apr. 18, 2007, HOW Pat. N6. 7,794,192, which (Continued) is a continuation-in-part of application No. 10/997,930, filed O11 NOV. 29, 2004, HOW Pat. N6. EOREIGN PATENT DOCUMENTS 7,331,746 WO WO 01/23701 A1 4/2001 Primary Examiner — Gregory W Adams (51) 1111- C1- ( ) (74) Attorney, Agent, or Firm — Antony C. Edwards E21B 19/00 2006.01 (52) U.S. Cl. ................ .. 414/22.65; 414/22.68; 414/917; (57) _ABs_TRA_CT _ _ 414/2263 apparatus for handling pipes in a derrick and racking the (58) Field 61 Classification seaieli .................. .. 175/52, P‘Pes en e‘ P‘Pe reekmg assembly meumed en the demek ‘S
provided to improve the stability of transferring pipes during a round trip operation.
12 Claims, 30 Drawing Sheets
