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:
May. 23, 2006
Filed:
Nov. 21, 2001
Hiroyuki Katayama, Hyogo-ken, JP;
Yoshiyuki Doi, Hyogo-ken, JP;
Toyosei Aota, Hyogo-ken, JP;
Tatsuo Adachi, Saitama-ken, JP;
Satoshi Hara, Saitama-ken, JP;
Hiroyuki Katayama, Hyogo-ken, JP;
Yoshiyuki Doi, Hyogo-ken, JP;
Toyosei Aota, Hyogo-ken, JP;
Tatsuo Adachi, Saitama-ken, JP;
Satoshi Hara, Saitama-ken, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A large capacity HEPA filter is produced having a layered filter medium unitarily formed by an upstream non-woven fabric, which can remove 70 to 90% of 0.3 μm particles, and a downstream non-woven fabric, which can remove 99.9% of 0.3 μm particles or more. The layered filter medium is shaped as a mini pleat shape in a thickness direction and an entire shape in the thickness direction is a plurality of continuous Vs. Also, a dust collecting device having such a large capacity HEPA filter is produced and an air intake device for a gas turbine is provided with such a dust collecting device.