Invention Grant
- Patent Title: Pencil-sharpening device
- Patent Title (中): 铅笔磨刀装置
-
Application No.: US11557806Application Date: 2006-11-08
-
Publication No.: US07934319B2Publication Date: 2011-05-03
- Inventor: Michael E. Peterson , Larry Buchtmann , Walter Johnsen , Stuart D. Farnworth
- Applicant: Michael E. Peterson , Larry Buchtmann , Walter Johnsen , Stuart D. Farnworth
- Applicant Address: US CT Fairfield
- Assignee: Acme United Corporation
- Current Assignee: Acme United Corporation
- Current Assignee Address: US CT Fairfield
- Agency: Alix, Yale & Ristas, LLP
- Main IPC: B26B9/00
- IPC: B26B9/00
Abstract:
The present invention is directed to a pencil-sharpening device having a titanium chromium nitride coating disposed on the cutting blade of the device. The titanium chromium nitride coating is metallurgically bonded to the steel blade. The coated blade provides enhanced properties for the pencil-sharpening device.
Public/Granted literature
- US20070214661A1 PENCIL-SHARPENING DEVICE Public/Granted day:2007-09-20
Information query
