Production Resource Group Inc.

Vizio, Inc.

James D Kempf

Scott Gross

A truss hinge that includes a number of different labeled parts, where connections between the two different parts can constrain the truss to different angles.

Truss hinge with variations in angular settings

A device which can slide up and down on a chain or cable, can be loosened to attach to the chain or cable, but does not have any parts that come free when the part is loosened. The device includes first and second pieces, each made of structural material, the first and second pieces fitting together at concave and convex surfaces, to form an interlock forms inner surfaces with a through hole of a first shape that can slide along either a cable or a chain.

Cable slider with symmetric pieces

A truss hinge that allows hinging between truss parts, and also allows configuration into a different size.

Truss hinge with angular variability

A hoist pick up bar, which has its entire clamp system inside the footprint of the truss. A benefit of placing the hoist inside the truss allows designers to raise the truss structure itself higher since the hoist is no longer above it. In embodiments, the device has clamps that move out of the way so that the device can be lowered on to the truss.

Hoist pickup bar

A truss hinge that allows hinging between truss parts, and also allows configuration into a different size, and spreads the angle of the truss open ends. One embodiment uses a first plate, having a connection part to a first truss, where the connection part is adapted for connection to a first truss. A second plate is movable relative to the first plate. The second plate also has a second connection part adapted for connection to a second truss. An angle setting part forms a connection between the first plate and the second plate, that holds the first plate relative to the second plate at any of a number of different relative locations between the first plate and the second plate. The plates include angle markings to set the connections.

Angle spreader for trusses

A reconfigurable power pack, that produces rotational power and can be used with separate accessories. The housing can be mounted in a first configuration with its motor facing downward and in which the housing is energized to move along a substantially horizontal extrusion. A second configuration mounts the housing is to move along a track in a deck. Other configurations are also possible.

Universal powerpack and attachments

Truss hinge for a stage truss

A device which can slide up and down on a chain or cable, can be loosened to attach to the chain or cable, but does not have any parts that come free when the part is loosened.

A truss hub with a circular outer shape, that connects to trusses that extend radially away from the truss hub in different directions.

Truss hub and parts with variable configurations

A track dog with removable parts. Embodiments describe one or more of the following features. In one embodiment, the size of the receiver for the knife shaped piece can be variable. Another embodiment describes an improved technique of holding the cable that is run under the floor. Yet another embodiment describes a device where the cable attachment mechanism are set in a location that line up with the openings in the floor to allow tightening without opening the floor. Another aspect describes a special through hole so that cable can be run through the device, e.g., to connect to another track dog.

Universal deck track dog with replaceable parts

A dual sided extrusion, where one side has a different shape than the other side, and the extrusion is intended to be used in different orientations depending on the application.

I-beam track with a separate attachment portion

A movable and steerable device that has a platform with four wheel assemblies, any of which are both drivable and steerable. Different driving and steering options can make the device move in different directions and orientations. The driving can be done by a drive motor, forming a drive loop of material, such as chain, and a steering motor, also forming a steering loop. The different loops are attached to different sprockets on the device, which have different sizes, and therefore the different loops do not interfere with one another.

Growing community of inventors

Newburgh, NY, United States of America

James D Kempf