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US 2021/0197337 A1Published application
Method and apparatus for enhanced blast stream
AssigneeCold Jet, Inc.
InventorTony Lehnig
Life of this patent
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Abstract
A method and apparatus produce an enhanced blast stream which may be directed at a workpiece. The enhanced blast stream has higher energy allowing the blast stream to remove difficult to remove coatings from substrates. A heated flow is combined with an entrained particle flow and expelled through a nozzle. The heated flow results in more energy being imparted to the coating.
Claims19
A particle blast system configured to expel a stream of entrained particles from a blast nozzle, the particle blast system comprising:
- a. a source of heated fluid;
- b. a source of transport fluid;
- c. a particle feeder connectable to the source of transport fluid, the particle feeder configured to entrain particles into a flow of the transport fluid thereby creating an entrained particle flow;
- d. an injector comprising:
- i. a first flow passageway comprising a first flow passageway inlet and a first flow passageway outlet;
- ii. a second flow passageway comprising a second flow passageway inlet and a second flow passageway outlet;
- and
- iii. a junction area at which the second flow passageway is in fluid communication with the first flow passageway;
- c. an entrained flow passageway configured to deliver the entrained particle flow from the particle feeder to the second flow passageway;
- and
- d. a heated fluid passageway connecting the source of heated fluid with the first flow passageway inlet.
8 more elements
A method of expelling a stream of entrained particles from a blast nozzle, comprising:
- a. providing a flow of heated fluid;
- b. providing an entrained particle flow;
- c. creating a combined flow by combining the flow of heated fluid with the entrained particle flow at a first location proximal the blast nozzle;
- and
- d. flowing the combined flow through and out of the blast nozzle.
2 more elements
Dependencies are inferred from the claim text.