Tensile truss mast

US9908750B2 · kind B2 · utility

Assignee

• PAR SYSTEMS, LLC · US

Inventors

• Albert J. Sturm, Jr. · Bocholt, DE
• Michael Hennessey · Colorado Springs, US
• Mark Guterman · Eagan, US

Key dates

• Filing date: Apr 1, 2011
• Grant date: Mar 6, 2018
• Expiry date: Apr 1, 2031

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66C11/08
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Hoist systems are provided. In one embodiment, a hoist system includes a lower platform, an upper platform, a plurality of flexible members, and a plurality of hoists. The upper platform has a plurality of rotatable support arms. The flexible members connect the rotatable support arms to the lower platform and can be extended and retracted using the plurality of hoists. If desired, the upper platform includes a plurality adjustable length support arms, and actuators may be used to extend and retract the support arms.