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. 20, 1990
Filed:
Feb. 14, 1989
Isoo Suzuki, Shiga, JP;
Taro Koshina, Nagoya, JP;
Makoto Irie, Nagoya, JP;
Shigeaki Takeda, Kyoto, JP;
Toyohiko Kubo, Kyoto, JP;
Masahiro Inoki, Hirakata, JP;
Sanyo Chemical Industries, Ltd., Kyoto, JP;
Hosokawa Micron Corporation, Osaka, JP;
Abstract
A stirring device having a casing for forming a stirring chamber, a driving rotary shaft disposed in the casing, a plurality of stirring paddles fitted on the rotary shaft as being dispersed axially of the shaft and a plurality of projections attached to an interior wall surface of the casing. The projections are provided adjacent each other at least one in number on each operational track of a leading edge of the paddle so as to remove excess substance adhered to the paddle thereby preventing frictional wear of the casing by the substance. Also, because of an interspace provided between an axially adjacent pair of projections, the projections do not obstruct the stirring operation of the device.