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.

Date of Patent:
Sep. 14, 2004

Filed:

Jun. 21, 2001
Applicant:
Inventors:

Shin Doi, Saitama-ken, JP;

Masaki Ban, Saitama-ken, JP;

Goro Watanabe, Saitama-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05C 1/900 ;
U.S. Cl.
CPC ...
B05C 1/900 ;
Abstract

The present invention provides a finely-divided powder spray apparatus having a spray nozzle pipe for discharging finely-divided powders from the tip together with a gas stream, which is disposed at a prescribed distance from the member to be sprayed and inclined in a prescribed direction to the member; and a moving-speed control means which controls the moving-speed of the tip of the spray nozzle pipe in accordance with the quadratic function, which indicates the reduction rate of the density of the deposited finely-divided powders based on the distance between a peak point of the density of the finely-divided powders deposited on the member to be sprayed in a trial spray and a spray point at which an extension from the spray nozzle pipe intersects with the member to be sprayed.


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