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:
Nov. 19, 2019
Filed:
Dec. 03, 2013
Koken Ltd., Tokyo, JP;
Taketo Suzuki, Tokyo, JP;
Kozo Nitta, Tokyo, JP;
Yuki Fujishiro, Tokyo, JP;
Tomoyuki Kakinuma, Tokyo, JP;
Takahiro Sato, Tokyo, JP;
KOKEN LTD., Tokyo, JP;
Abstract
The local air cleaning apparatuscauses a cleaned uniform air flow blown out from an air flow opening faceto collide with an air collision face W to flow outside an open region, so as to cause cleanliness to be higher inside a guideand inside the open region than other regions. Additionally, the apparatusincludes at least one of a device for measuring pressures inside the guideand inside a push hooda device for measuring the cleanliness inside the guideor of the open region, and a device for measuring a gap area between the guideand the air collision face W, and, to ensure the cleanliness from a result of the measurement, controls such that a flow velocity of the cleaned uniform air flow blown out from the air flow opening facecan be decelerated or accelerated.