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US 7,842,885 B2Granted
Simplified truss assembly and lighting track interconnection
OwnerMichael J. Callejainventor
Life of this patent
Estimating the term…
Abstract
A simplified assembly truss system rivets each power track inside one chord of each truss span so that the electrical components cannot be misaligned inside the chord during final assembly. The chord is slotted to receive lighting heads in its mid-sections, and short end slots allow interconnecting plugs to be inserted into matching power track ends. A stop captured by the rivets near each chord-end indexes the interconnecting plugs to ensure the final electrical assembly is correct.
Claims6
A lighting truss system, comprising:
- a truss section with a plurality of powered main truss chords between end flanges;
- a plurality of fixture slots disposed along an outside length of said powered main truss chords;
- a pair of end slots outboard of the fixture slots and inline with the fixture slots, and which produce an opening at each end of the powered main truss chords;
- a plurality of extruded aluminum supports disposed inside said powered main truss chords;
- a pair of power buss bars supported inside the extruded aluminum supports by insulator supports and accessible on one side through one of the fixture slots;
- and a pair of fasteners each for fixing corresponding ends of the extruded aluminum supports inside the powered main truss chords.
3 more elements
A truss transformer power T-section, comprising:
- a truss T-section with a plurality of low-voltage powered main truss chords between three end flanges;
- a plurality of slots disposed along an outside length of said powered main truss chords;
- a plurality of extruded aluminum supports disposed inside said powered main truss chords relative to the slots;
- a pair of fasteners each for fixing the ends of the extruded aluminum supports inside the powered main truss chords;
- a pair of power buss bars supported inside each of the extruded aluminum supports by insulator supports and accessible on one side through the fixture slots;
- pairs of wires internally interconnecting the pair of power buss bars;
- sockets formed at each of ends of the powered main truss chords at said end flanges providing for a male-male plug for interconnecting exposed open ends of the powered main truss chords between adjoining said end flanges;
- and at least one step-down transformer for converting a utility power input into a low voltage which is then applied to the pairs of power buss bars.
5 more elements
Dependencies are inferred from the claim text.