US 10,888,970 B2
Sharpening device
Thomas James McVeigh, Montaigut sur Save (FR); Oliver Price, London (GB); and Peter Cauwood, Cambridge (GB)
Assigned to Sky Tooling Limited, Poole (GB)
Appl. No. 15/519,940
Filed by Sky Tooling Limited, Poole (GB)
PCT Filed Oct. 20, 2015, PCT No. PCT/GB2015/053105
§ 371(c)(1), (2) Date Apr. 18, 2017,
PCT Pub. No. WO2016/063021, PCT Pub. Date Apr. 28, 2016.
Claims priority of application No. 1418598.7 (GB), filed on Oct. 20, 2014.
Prior Publication US 2017/0326703 A1, Nov. 16, 2017
Int. Cl. B24B 3/36 (2006.01); B24D 15/06 (2006.01); B23D 73/02 (2006.01); B23D 73/10 (2006.01); B23D 67/00 (2006.01); B24B 3/00 (2006.01); B24D 15/00 (2006.01)
CPC B24B 3/36 (2013.01) [B23D 67/00 (2013.01); B23D 73/02 (2013.01); B23D 73/10 (2013.01); B24D 15/06 (2013.01); B24B 3/00 (2013.01); B24D 15/00 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A portable sharpening device comprising:
a body portion comprising a surfacing member, an upper wall, a lower wall, and two side walls, wherein the upper wall, lower wall, and two side walls define a mouth;
wherein the mouth is in communication with the surfacing member;
wherein the upper wall, the lower wall, and the two side walls are configured to guide an object to be sharpened towards the surfacing member;
wherein the device is arranged to sharpen a face of the object to be sharpened by relative movement between the surfacing member and the object to be sharpened;
wherein the body portion further comprises at least three lateral guiding fingers located on the lower wall of an inner portion of the mouth and spaces exist between adjacent lateral guiding fingers of the at least three lateral guiding fingers, wherein the at least three lateral guiding fingers extend toward but do not contact the upper wall so that the object to be sharpened is received between at least one lateral guiding finger and the upper wall;
wherein the plurality of lateral guiding fingers are arranged to locate the face of the object to be sharpened in an orientation substantially parallel to the surfacing member; and
wherein the relative movement is created manually by a user.