E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
E04H 12/00 (2006.01) B66F 1/02 (2006.01) B66F 3/30 (2006.01) B66F 19/00 (2006.01) E04H 12/34 (2006.01) F03D 11/04 (2006.01)
Patent
CA 2702146
A mast assembly having a base, and a mast pivotally connected to the base for movement between a horizontal and an upright position. A linear actuator is connected between the base and the mast and is extensible to move mast about the pivot. A strut is selectively positioned between the mast and the base to inhibit pivotal movement toward the horizontal position during lifting of the mast. A plurality of abutments on the base permits selective connection between the actuator and the base. The strut position supports the mast while said actuator is moved between the abutments.
Ensemble mât doté d'une base, et un mât relié de manière à pivoter à la base pour qu'il y ait mouvement entre une position horizontale et verticale. Un actionneur linéaire relie la base et le mât et est extensible pour déplacer le mât sur le pivot. Une entretoise est sélectivement placée entre le mât et la base pour empêcher le mouvement de pivot vers la position horizontale pendant le levage du mât. Une pluralité de butées sur la base permet une liaison sélective entre l'actionneur et la base. La position de l'entretoise supporte le mât pendant que ledit actionneur est déplacé entre les butées.
Blake Cassels & Graydon Llp
Redriven Power Inc.
LandOfFree
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