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.:

US 9248506 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 02, 2016

Filed:

Jul. 25, 2013
Applicant:

Feng-tien Chen, Taichung, TW;

Inventor:

Feng-Tien Chen, Taichung, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 31/117 (2006.01); B23C 5/26 (2006.01); B23Q 3/12 (2006.01); B23Q 11/00 (2006.01); B23B 31/00 (2006.01); B23B 29/02 (2006.01);
U.S. Cl.
CPC ...
B23B 31/006 (2013.01); B23B 29/022 (2013.01); B23B 2231/0272 (2013.01); B23B 2231/0284 (2013.01); B23B 2231/0288 (2013.01); B23B 2231/0292 (2013.01); B23B 2250/16 (2013.01); B23B 2270/06 (2013.01); B23Q 3/12 (2013.01); Y10T 279/17965 (2015.01); Y10T 409/30952 (2015.01); Y10T 409/304312 (2015.01);
Abstract

The tool shank contains a taper member, a flange member, a holder member, a clamped member, and a number of slits. The taper member has a conic shape extended along an axial direction with a top section and a bottom section. The flange member is beneath the bottom section of the taper member. The holder member is extended downward from a bottom side of the flange member along the axial direction. The clamped member is extended upward from the top section of the taper member. The slits are configured at intervals around the bottom section surrounding the axial direction. Each slit defines a slightly outwardly bulge. The bulges increase the contact area with and avoid gaps to a tapered socket of a spindle. As such, the tool shank is tightly jointed to the spindle during high-speed rotation without causing vibration and damage.


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