US 11,319,198 B2 · Compact hoist accessories and combination systems

Abstract

A hoist system having a drum primarily self-contained within a batten, for raising and lowering lighting, sound equipment, curtains and the like, often in a performance environment. The compact system is highly scalable to a variety of spaces and applications, including school and public theaters and concert halls, as well as some homes, private business, etc. The hoist system may be adapted with safety mechanisms including an overspeed detector, which may comprise a centrifugal detection mechanism coupled to an elongate member of the system; dampening means; a compact mechanism for trimming or adjusting an operative length of elongate member; stabilizing pipe shaft bearings; elongate member diverter pulley mechanisms load balancing termination points. Additional features include various alternative combination hoist implementations and orientations, and alternative incorporated attachment mechanisms for use with the hoist system.

Claims20

Dependent claims

A trim mechanism for an elongate member, comprising:

a body having a first opening and a second opening formed therein, the first opening and the second opening being adapted to receive a first end of the elongate member;
a channel formed in the body substantially parallel to a length of the body and in physical communication with the first opening and the second opening, the channel being adapted to support a portion of the elongate member upon insertion of the elongate member through the first and second openings and into the channel;
a wedge formed in the body adjacent to the channel and at an angle with respect to the length of the body;
at least one jaw disposed within the body and in movable contact with the wedge, such that at least a portion of the at least one jaw is movable to within a portion of the channel upon application of a force to the jaw in a first direction substantially parallel to the length of the body;
wherein the at least one jaw is positioned such that the elongate member may be moved substantially freely through the channel in a second direction, and such that movement of the elongate member in the first direction is restricted by the at least one jaw.

2 more elements

Dependencies are inferred from the claim text.

Compact hoist accessories and combination systems

Life of this patent

Compact hoist accessories and combination systems

Life of this patent

Abstract

Claims20