Coating implements with material supply – Solid material for rubbing contact or support therefor – Including means to advance material
Patent
1989-08-14
1990-10-30
Johnson, Richard J.
Coating implements with material supply
Solid material for rubbing contact or support therefor
Including means to advance material
401 94, 401 65, 401 84, 401 90, B43K 2116
Patent
active
049664786
ABSTRACT:
A mechanically controlled writing apparatus with presharpened pencil lead elements generally comprises of an inner cylinder and a pen-holder. The inner cylinder is a straight hollow tube, having two elongated piercing grooves vertically made at the bottom to permit the bottom end be slightly expanded for passing therethrough of pencil lead elements, and a plurality of wedge-like projections made on the outer wall surface at the bottom end and respectively reducing upward, which wedge-like projections may be squeezed inward by the inner wall surface of the outer pen-holder to firmly retain the bottom pencil lead element for smooth writing. The pen-holder comprises a reduced bottom end having a hook means integrally made thereon to alternatively insert through the two elongated piercing grooves into the inner cylinder, which hook means may be controlled to displace outward through a lever motion effect. When inner cylinder is pressed down, the hook means is pushed aside to further insert through the top surface of the bottom piece of pencil lead element so as to let the bottom piece of pencil lead element protrude beyond the pencil lead outlet for writing when the inner cylinder is pushed upward to original position.
REFERENCES:
patent: 480188 (1892-08-01), Fornander
patent: 618172 (1899-01-01), Goldsmith
patent: 692440 (1902-02-01), Goldsmith
patent: 1062274 (1913-05-01), Fischer
patent: 1378174 (1921-05-01), Kaiser
patent: 4219282 (1980-08-01), Kuo
patent: 4320982 (1982-03-01), Kuo
patent: 4657421 (1987-04-01), Lin
LandOfFree
Mechanically controlled-writing apparatus with presharpened penc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mechanically controlled-writing apparatus with presharpened penc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanically controlled-writing apparatus with presharpened penc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-272478