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, 2012
Filed:
Dec. 11, 2006
Hannes Floessholzer, St. Paul, AT;
Hannes Floessholzer, St. Paul, AT;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
To minimize the risk for injuries due to hooked hair catching teeth, but still have a reasonable hair-cutting efficiency, a cutting unit () for a hair-cutting device () having two blades () moving relatively to each other with at least one of the blades () being toothed is proposed, wherein at least some teeth () have a larger cross-sectional area (CA) at their free end () than at their end () making the junction with the blade (), wherein the larger cross-sectional area (CA) is 0.3 mm2 or more and wherein the shape of the larger cross-sectional area (CA) is such that the tooth () surface oriented to face the surface () with hair () to be cut when cutting has a larger distance to the middle axis (M) than the equivalent surface of the blade-side-end ().