Patent ID: 9630816
Date: 2017-04-25
CPC Classifications: B60P,B63B,B66C,B66D,F16M

Claim:
1. A portable crane formed of composite members, comprising: a mast formed of a composite material; a boom formed of a composite material; a boom end housing removably coupled at a top of the mast, the boom end housing comprising an enclosure, a first end of the boom coupled within the boom end housing with an adhesive; an end cap at a second end of the boom, the end cap coupled to a sheave with a pin, the end cap covering a terminal end of the second end of the boom and extending along both sides of a slot in an upper surface of the second end and along a portion of a first side of the second end and along a portion of a second side of the second end; a boom pivot coupled to the boom end housing, the boom pivot coupling the boom to the mast and allowing the boom to pivot relative to the mast; and an angle adjuster releasably securing the boom at a desired angle relative to the mast, the angle adjuster coupled to a sleeve that is bonded to the mast with an adhesive.