The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1993
Filed:
Dec. 05, 1990
Applicant:
Inventors:
Jeffrey S Coombs, West Glamorgan, GB;
Gordon R Dunstan, Swansea, GB;
Assignee:
Osprey Metals Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; B22F / ;
U.S. Cl.
CPC ...
75338 ; 264 12 ; 266202 ; 425-7 ;
Abstract
Apparatus for the production of powders or spray deposits is provided in which a metal or metal alloy stream is broken up into atomized droplets by primary jets of atomizing gas. In order to remove further heat from the atomized droplets, secondary jets are positioned adjacent the primary jets for directing cooling fluid in the form of cryogenic liquified gas at the atomized droplets. The apparatus permits the formation of coarser powders, powders from alloys with a wide solidus/liquidus gap in a shorter atomizing chamber, or spray deposits with increased yield of deposited material.