Knife sharpener

Details Knife sharpener Knife sharpener

1985-04-29

1986-11-25

Schmidt, Frederick R.

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51 59R, 51173, 51285, 76 86, B24B 904, B24B 702

Patent

active

046240799

ABSTRACT:
A knife sharpener having a pair of abrasive rod members whose bottom ends are mounted on carriages that are reciprocally mounted in channels formed in upstanding block members. The channels travel along an axis that is parallel to the downwardly sloping top surface of the block members. The block members are fixedly attached to the top surface of a base and the mouths of their channels face each other and are aligned on parallel offset axes. The rod members therefore intersect each other at a predetermined angle to form a V at their top into which a knife blade is drawn rearwardly along a horizontal plane to sharpen its edges. Each of the carriages has one of its ends fixedly attached to a spring whose opposite end is fixedly held in position. The downward force of the knife blade as it is being sharpened causes the rod members on the respective carriages to travel downwardly toward each other and when the pressure is released the springs will return them to their initial unloaded positions.

REFERENCES:
patent: 1365161 (1921-01-01), Eisenhauer
patent: 1909743 (1933-05-01), Blanker
patent: 2519351 (1950-08-01), Calvert
patent: 3339313 (1967-09-01), Lindhag
patent: 4528777 (1985-07-01), Bernstein et al.

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