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:
Aug. 20, 2019
Filed:
Jul. 12, 2016
Koninklijke Philips N.v., Eindhoven, NL;
Chak Yuen Law, Eindhoven, NL;
Cho Woo, Eindhoven, NL;
KONINKLIJKE PHILIPS N.V., Eindhoven, NL;
Abstract
An air outlet grill for use on a hair care device comprises a plurality of concentric and tilted flow guide surfaces (), a cross section of the flow guide surfaces () having a curved shape that diverges in an air flow direction. Preferably, tilt angles between the flow guide surfaces () are designed such that an air inlet area of the air outlet grill is larger than an air outlet area of the air outlet grill, so as to increase air speed. Preferably, a middle flow guide surface has a smaller height compared to at least one other flow guide surface, so as to increase an area for air to pass through at a middle part of the air outlet grill. Preferably, a leading edge of at least one of the flow guide surfaces () is tangent to the air flow direction while a trailing edge of the flow guide surfaces diverges from the air flow direction. Preferably, a cross-section profile of at least one of the flow guide surfaces () is airfoil shaped such that a thickness of the leading edge is smaller than a thickness of the trailing edge in the air flow direction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile