Detachable head member having slit structure

Details Detachable head member having slit structure Detachable head member having slit structure

1981-11-09

1983-10-11

Bratlie, Steven A.

Coating implements with material supply

Material flows through porous tool

Wick feed from within reservoir to tool

401 89, 401116, 401199, 401202, 401207, B43K 300, B43K 802

Patent

active

044089210

ABSTRACT:
A marking pen containing a head seat member which is adapted to be readily engaged with a shaft tube, whereby the tip member of the marking pen can be exchanged and the extrusion length of the top part of the tip member can be adjusted. On the outer surface of an engaging tube of the head seat member is positioned a projection structure abutting against the top portion of the inner surface of the shaft tube, thereby preventing the head seat member from becoming loose under pressure applied from any direction during marking. In the head seat member the engaging tube is provided with one or more axially elongated slits extending substantially to the end thereof so that the engaging tube is adapted to be deformed by means of the slit, the deformation preventing the engaging tube from engaging the shaft tube too tightly, thereby permitting the smooth axial movement of the head seat member and the easy fine adjustment of the extrusion length of the top part of the tip member.

REFERENCES:
patent: 3003182 (1961-10-01), Rosenthal
patent: 3355239 (1967-11-01), Albrecht
patent: 3399021 (1968-08-01), Matsumoto
patent: 3972629 (1976-08-01), Whalen, Jr.
patent: 4209263 (1980-06-01), Droubay
patent: 4317639 (1982-03-01), Kato

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