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. 27, 1990
Filed:
May. 21, 1987
Applicant:
Inventors:
Kenji Ando, Kawasaki, JP;
Yuji Chiba, Atsugi, JP;
Tatsuo Masaki, deceased, late of Yokohama, JP;
Masao Sugata, Yokohama, JP;
Kuniji Osabe, Tama, JP;
Osamu Kamiya, Machida, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
204164 ; 239 81 ; 21912147 ; 2191215 ; 21912152 ; 219 7616 ; 21912143 ; 21912155 ; 20415741 ; 20415743 ; 20415761 ; 20415744 ; 20415763 ; 42218604 ; 42218621 ; 422907 ; 427 34 ; 118715 ; 118719 ; 118722 ;
Abstract
An apparatus for controlling a flow of fine particles is provided which comprises a convergent-divergent nozzle in a flow path of the fine particles. The nozzle may be operated under an optimum expansion condition, and the differential coefficient of the streamline at the channel inside the nozzle varies continuously and is equal to zero at a throat portion of the nozzle.