Writing implement

Details Writing implement Writing implement

1979-09-12

1982-03-23

Bratlie, Steven A.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 65, 401 82, 401 85, 401 90, 401 94, B43K 2116

Patent

active

043209823

ABSTRACT:
This invention relates to a writing implement comprising an outer casing, a coil spring disposed within the casing, an inner tube inserted through the coil spring and having a plurality of presharpened pieces of pencil lead stored therewithin, and a capping member fitted over the open end of the inner tube. The lower (writing) portion of the inner tube is split into two clamping halves. The lower end of the coil spring is formed into a hook which slides along the slot formed between the clamping halves to allow the expelling and feeding of presharpened pieces of pencil lead into the space between said two clamping halves.

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patent: 3790291 (1974-02-01), Hung et al.
patent: 3918819 (1975-11-01), Liu
patent: 4219282 (1980-08-01), Kuo

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