Back to results
US 5,477,025 AGranted
Laser nozzle
AssigneeQuantum Laser Corporation
InventorsMark A. Everett, Richard F. Haraz
Life of this patent
Estimating the term…
Abstract
A nozzle for delivering particulate matter into a molten pool created on a substrate includes a core through which the particulate is delivered, an annulus surrounding the core for simultaneously delivering a shield gas toward the molten pool and shield gas conditioning apparatus. The conditioning apparatus includes a system of wire mesh screens and a cup for directing the gas flow.
Claims34
A nozzle for application of particulate material, comprising:
- a) a core having an inlet for receiving particulates, an outlet for directing the particulates to a selected situs, and an aperture extending therebetween;
- b) a body secured to and surrounding said core and therewith providing an annulus, said body having a gas inlet and a gas outlet intermediate said core inlet and outlet;
- c) a bushing assembly secured to and surrounding said body intermediate said core inlet and outlet, said bushing assembly defining a cavity into which said gas outlet issues;
- and
- d) a diffuser disposed within said cavity for causing gas issuing from said gas outlet to be uniformly distributed about and operably communicated relative to and beyond said core outlet.
2 more elements
A system for delivering a powder into a melt zone of a substrate, comprising:
- a) a nozzle for delivering a powder to a desired situs, said nozzle comprising a delivery core having an inlet and an outlet, a body secured to said core and therewith defining an annulus, said body having gas inlet and outlet passages and wherein said gas outlet passages are intermediate said core inlet and outlet, a cooling system surrounding said body for cooling same, a bushing assembly secured to said body and intermediate said core inlet and outlet, said bushing assembly defining a cavity into which said outlet passages issue, and a diffuser secured between said bushing assembly and said core for causing gas issuing from said gas outlet passages to be uniformly distributed about and operatively communicated relative to and beyond said core outlet;
- b) means for supplying powder to said core inlet;
- and
- c) means for providing a shield gas to said gas inlet.
1 more element
Dependencies are inferred from the claim text.