Invention Grant
- Patent Title: Collapsible hoisting apparatus
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Application No.: US14570855Application Date: 2014-12-15
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Publication No.: US09637356B2Publication Date: 2017-05-02
- Inventor: Kevin John Birch , Raymond Scott Birch , Steven Adam Berry , Raymond Francis Birch
- Applicant: HOIST AROUND LLC
- Agency: Griffiths & Seaton PLLC
- Main IPC: B66C23/44
- IPC: B66C23/44

Abstract:
A collapsible hoist apparatus includes a lower boom assembly, a middle boom assembly, and an upper boom assembly, the boom assemblies consisting of two parallel boom arms and a transversal crossbeam, and are connected to one another by a pivotal annular support. The annular support allows the complete boom assembly to be placed in a first extended position, such that the boom assemblies extend outwardly, aligned in a pleated configuration; a fully extended position, such that the boom assemblies extend outwardly, aligned in a planar configuration; or a closed storage position, such that the boom assemblies extend inwardly, aligned in a pleated configuration.
Public/Granted literature
- US20160167933A1 COLLAPSIBLE HOISTING APPARATUS Public/Granted day:2016-06-16
Information query
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