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:
Jan. 07, 2025
Filed:
Dec. 07, 2023
Applicant:
Shinano Kenshi Kabushiki Kaisha, Nagano, JP;
Inventor:
Masahiko Uni, Nagano, JP;
Assignee:
SHINANO KENSHI KABUSHIKI KAISHA, Nagano, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04D 29/42 (2006.01); F04D 17/10 (2006.01); F04D 29/28 (2006.01); F04D 29/44 (2006.01);
U.S. Cl.
CPC ...
F04D 29/4246 (2013.01); F04D 29/28 (2013.01); F04D 29/42 (2013.01); F04D 29/4213 (2013.01); F04D 29/4226 (2013.01); F04D 29/44 (2013.01); F04D 17/10 (2013.01);
Abstract
Lock protrusionsare projectingly provided to a peripheral edge part of an intake opening partof a first caseat a plurality of positions. A removal holewhose width becomes narrower from an upstream side to a downstream side in a rotational direction of a centrifugal fanis provided to extend on a radial-direction outer side of each lock protrusion. An inclined surface F is chamfered to continue to an outer-peripheral-side peripheral edge partof the removal hole, the peripheral edge partfacing to an inner wall surfaceof the first case