B - Operations – Transporting – 66 – F
Patent
B - Operations, Transporting
66
F
B66F 1/00 (2006.01) E04G 3/00 (2006.01) E04G 5/04 (2006.01) E04H 12/20 (2006.01) E04H 12/22 (2006.01)
Patent
CA 2552452
A pump jack pole brace. The brace comprises a U-shaped yoke member having a first leg and a second leg. The brace includes a latch plate assembly having a first side slidably and pivotably attached to the first leg, and a second side having a tab which engages with the second leg to form a closed envelope with the yoke. A method for securing a pole for use of a pump jack system.
Verrou de sécurité de vérin de calage à chevalet. Le verrou comprend un élément de chape en forme de U muni d'une première et d'une seconde pattes. Le support comprend une plaque de verrouillage muni d'un premier côté fixé à la première patte de manière à coulisser et à pivoter, et un second côté muni d'une languette qui s'engage avec la seconde patte pour former une enveloppe fermée avec la chape. L'invention comprend une méthode de fixation d'une perche pour utiliser le dispositif de verrou de sécurité.
Beggs Robert D.
Latimer Brett A.
Borden Ladner Gervais Llp
Werner Co.
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