Metal tools and implements – making – Tool sharpeners – Cutting
Patent
1983-10-28
1985-11-05
Parker, Roscoe V.
Metal tools and implements, making
Tool sharpeners
Cutting
51285, A01D 300, B24B 336
Patent
active
045506329
ABSTRACT:
This disclosure relates to sharpeners for blades having a cutting edge, and is particularly concerned with knife sharpeners of the type where two sharpening elements (generally known as "steels") are located in a housing in overlapping V-formation and spring-loaded towards each other, with an access opening in the housing to allow the blade of, e.g., a knife or pair of scissors to be pressed against the steels, and when reciprocation of the blade effects sharpening of the cutting edge. Such sharpeners known hitherto, are arranged to provide a constant V-angle between the sharpening elements, and accordingly produce the same V-shaped cutting edge irrespective as to the thickness of the blade. The object is to provide a sharpener that can correctly sharpen thicker and thinner blades, which objective is met by a construction comprising two sharpening elements mounted in overlapping V-formation and spring-loaded to each other, said sharpening elements being pivotally mounted at one end such that on pivotal movement of the sharpening elements consequent upon the application of a blade between the sharpening elements, the V-angle between the elements varies dependent upon the depth of insertion of the blade.
REFERENCES:
patent: 772542 (1904-10-01), Sullivan
patent: 1041631 (1912-10-01), Johnson
patent: 2124646 (1938-07-01), Barsch
patent: 3064393 (1962-11-01), Chasan
Archant Limited
Parker Roscoe V.
LandOfFree
Knife sharpener does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Knife sharpener, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Knife sharpener will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-290829