| Knife sharpening device -> Monitor Keywords |
|
|
 Knife sharpening deviceUSPTO Application #: 20070289410Title: Knife sharpening device Abstract: A knife sharpening device is disclosed. The device an elongated body with cornered edge on the surface thereof characterized in that at least one corner of the device is a cornered slot extended axially and the connection between the top end of the two walls of the cornered slot with the circumferential surface forms into a first sharpening edge and a second sharpening edge, and the first and the second sharpening edge are in contact with the edge of a knife. (end of abstract) Agent: Leong C Lei - Walnut Creek, CA, US Inventor: Tsang-Hai Lin USPTO Applicaton #: 20070289410 - Class: 76 84 (USPTO) The Patent Description & Claims data below is from USPTO Patent Application 20070289410. Brief Patent Description - Full Patent Description - Patent Application Claims
BACKGROUND OF THE INVENTION [0001](a) Technical Field of the Invention [0002]The present invention relates to knife sharpening device, and in particular, a knife sharpening device which is used to sharpen both of the edge of a knife. [0003](b) Description of the Prior Art [0004]FIGS. 1 and 2 show conventional knife sharpener which is generally a cylindrical sharpening rod 10. The surface of the rod 10 is a polishing surface 15 which is used to sharpen the edge of the knife 1 in the course of knife sharpening. The drawback of such sharpening rod 10 is that the efficiency of sharpening a knife is poor. [0005]FIGS. 3 and 4 shows a conventional knife sharpening device 20 published in Taiwan Patent Publication No. 368921. The knife sharpening device 20 has a handle 21 with a front end being a polygonal shape tungsten-steel plate 25. The corners of the tungsten-steel plate 25 are the sharpening corners 26 for use in maintaining the sharpness of the edge 1 of a knife. Such conventional knife sharpening device can enhance the sharpening efficiency, however, only one sharpening corner 26 can be used and therefore, the applicability of this conventional device 20 is not restricted. Further, the wear out of the sharpening corner 26 is too fast, therefore, the longevity of the conventional sharpening device is short. [0006]In view of the above drawback, it is an object of the present invention to provide a knife sharpening device which could overcome the drawbacks as stated. SUMMARY OF THE INVENTION [0007]The primary purpose of the present invention is to provide a knife sharpening device having an elongated body with cornered edge on the surface thereof, characterized in that at least one corner of the device is a cornered slot extended axially and the connection between the top end of the two walls of the cornered slot with the circumferential surface forms into a first sharpening edge and a second sharpening edge, and the first and the second sharpening edge are in contact with the edge of a knife. [0008]Yet another of the present invention is to provide a knife sharpening device, wherein at least one end of the sharpening device is a converging conic for sharpening the edge of a small knife. [0009]Another further object of the present invention is to provide a knife sharpening device which is a cylindrical elongated body, characterized in that the circumferential edge of the device has at least a sectional slot which is axially extended, and the connection between the top end of the two lateral wall of the sectioned slot forms into a first sharpening edge and a second sharpening edge, and the first and the second sharpening edge can contact with the first edge of a knife at the same to sharpen the knife. [0010]The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. [0011]Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. BRIEF DESCRIPTION OF THE DRAWINGS [0012]FIG. 1 is a perspective view of a sharpening rod conventionally used for sharpening knives. [0013]FIG. 2 is a sectional schematic view showing a conventional sharpening rod being applied to sharpen a knife. [0014]FIG. 3 is a perspective view showing the application of the conventional sharpening rod in sharpening a pair of scissors. [0015]FIG. 4 is a schematic view showing the sharpening corner in contact with an object to be sharpened. [0016]FIG. 5 is a perspective view of the sharpening device in accordance with the present invention. [0017]FIG. 6 is a schematic sectional view showing the sharpening between the sharpening corners of the sharpening device of the present invention. [0018]FIG. 7 is a perspective view of another preferred embodiment of the present invention. [0019]FIG. 8 is a schematic sectional view showing the application of the sharpening device shown in FIG. 7 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0020]The following description are of exemplary embodiment only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. Continue reading... Full patent description for Knife sharpening device Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Knife sharpening device patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Knife sharpening device or other areas of interest. ### Previous Patent Application: Foot peg with replaceable cleat component Next Patent Application: Ratchet mechanism for hand tools Industry Class: ### FreshPatents.com Support Thank you for viewing the Knife sharpening device patent info. IP-related news and info Results in 3.5534 seconds Other interesting Feshpatents.com categories: Medical: Surgery , Surgery(2) , Surgery(3) , Drug , Drug(2) , Prosthesis , Dentistry |
||
