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. 05, 2016
Filed:
Jan. 23, 2012
Applicant:
Szu-yu Chen, Chang Hua, TW;
Inventor:
Szu-Yu Chen, Chang Hua, TW;
Assignee:
SDI CORPORATION, Chang Hua, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B43L 23/08 (2006.01); B43L 23/00 (2006.01);
U.S. Cl.
CPC ...
B43L 23/08 (2013.01); B43L 23/008 (2013.01);
Abstract
A reciprocating pencil sharpener has a stationary member, a cutter and a ratchet mechanism. The cutter includes a blade secured to a blade holder. The ratchet mechanism is mounted between the stationary member and the cutter and allows the cutter to rotate relative to the stationary member in one direction only. When a user desires to sharpen a pencil, the user can keep the pencil in the hand and rotate the pencil in reciprocating rotation, thus obtaining the sharpened point of the pencil. Consequently, it is convenient for the user to apply a rotational force and a high efficiency of sharpening operation is achieved.