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:
Apr. 25, 2017
Filed:
Sep. 04, 2012
Kimihiro Shimono, Toyama, JP;
Takahiro Takeda, Toyama, JP;
Kazutoshi Teraoka, Toyama, JP;
Fumihito Kasagi, Toyama, JP;
Osamu Shiraishi, Fukuoka, JP;
Takushi Tamamura, Tokyo, JP;
Toshinori Yasutomi, Fukuoka, JP;
Kimihiro Shimono, Toyama, JP;
Takahiro Takeda, Toyama, JP;
Kazutoshi Teraoka, Toyama, JP;
Fumihito Kasagi, Toyama, JP;
Osamu Shiraishi, Fukuoka, JP;
Takushi Tamamura, Tokyo, JP;
Toshinori Yasutomi, Fukuoka, JP;
DIAMOND ENGINEERING CO., LTD., Toyama, JP;
ELECTRIC POWER DEVELOPMENT CO., LTD., Tokyo, JP;
Abstract
A powder supply deviceincludes a powder feed pipe, at least part of which is an expansion/contraction part, a load cell, a pressure indicator, and a controller, wherein the controller obtains a powder weight or a rate of change in powder weight in the feed tank by using a value obtained by subtracting a value proportional to the pressure in the expansion/contraction part from the load applied by the feed tank to the load cell and adding a value proportional to a rate of change in pressure in the expansion/contraction part, and controls the flow rate of the powder to be fed to the outside of the feed tank by using the powder weight or the rate of change in powder weight.