Writing implement

Details Writing implement Writing implement

1978-06-26

1980-08-26

Burr, Edgar S.

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

042192820

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 leads stored therewithin, and a capping member inserted over the open end of the inner tube. The front (writing) end of the inner tube is split into two clamping halves. The front end of the coil spring is formed into a hooked portion which slides along the slot formed between the clamping halves to allow the expelling and feeding of presharpened lead pieces into the clamping halves.

REFERENCES:
patent: 480188 (1892-08-01), Fornander
patent: 692440 (1902-02-01), Goldsmith
patent: 1590126 (1926-06-01), Sheley
patent: 1766271 (1930-06-01), Turner
patent: 2358091 (1944-09-01), Lovejoy
patent: 3338215 (1967-08-01), Chui et al.
patent: 3790291 (1974-02-01), Hung et al.
patent: 3918819 (1975-11-01), Liu

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