Back to results
US 7,153,454 B2Granted
Multi-nozzle assembly for extrusion of wall
AssigneeUniversity of Southern California
InventorBehrokh Khoshnevis
Life of this patent
Estimating the term…
Abstract
A multi-nozzle assembly may include a first nozzle configured to extrude material through a first outlet; a second nozzle configured to extrude material through a second outlet; and a third nozzle configured to extrude material through a third outlet, the third outlet being between the first and second outlets. Related construction processes and wall structures are also disclosed.
Claims17
A construction method comprising:
- simultaneously extruding a first layer of two, spaced apart rims;
- and
- after extruding the first layer of rims, simultaneously extruding a further layer of two, spaced apart rims, each directly or indirectly on top of the first layer of one of the spaced apart rims, along with a first layer of filler between the first layer of two, spaced apart rims.
A multi-nozzle assembly system comprising:
- a first nozzle configured to extrude a first material through a first outlet;
- a second nozzle configured to extrude the first material through a second outlet;
- a third nozzle configured to extrude a second material different from the first material through a third outlet, the third outlet being between the first and second outlets;
- a first valve configured to regulate flow of the first material to the first nozzle;
- a second valve configured to regulate flow of the first material to the second nozzle;
- a third valve configured to regulate the flow of the second material by the third nozzle;
- and
- a plurality of servo motors in communication with the first, second, and third valves, and operable to control the first, second, and third valves so that during a first time period, extrusion of the first material by the first and second nozzles is allowed while extrusion of the second material by the third nozzle is not allowed, then during a second time period, no extrusion by any of the first, second, and third nozzles is allowed, then during a third time period extrusion of the first material by the first and second nozzles, as well as extrusion of the second material by the third nozzle, are allowed;
- wherein the first material and the second material comprise construction material that hardens into a rigid structure after extrusion from a nozzle.
6 more elements
Dependencies are inferred from the claim text.