Plotter stylus with cap covered vent

Details Plotter stylus with cap covered vent Plotter stylus with cap covered vent

1985-04-09

1987-12-15

Bratlie, Steven A.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

401199, 401202, 401209, 401217, 401227, 401258, B43K 900, B43K 700

Patent

active

047129379

ABSTRACT:
The plotter stylus has a writing point (10) which is connected to the ink cartridge (50) via the ink duct (40). The ink duct (40) is surrounded by a pressure compensator (20) and connected thereto. In the pressure compensator a compensator element (21) is provided with annular chambers (23) which absorb surplus ink emerging from the ink duct (40) in the case of temperature or pressure increases. The annular chambers have no capillarity for the ink. Air is introduced via the air inlet orifice (28) located above the chambers (23). The ink cartridge (50) is exchangeable.

REFERENCES:
patent: 396547 (1889-01-01), De Normanville
patent: 2512004 (1950-06-01), Wing
patent: 2514729 (1950-07-01), Snodgrass
patent: 2681041 (1954-06-01), Zodtner et al.
patent: 2766728 (1956-10-01), Kovacs
patent: 2921558 (1960-01-01), Von Platen
patent: 2987044 (1961-06-01), Young
patent: 3645636 (1972-02-01), Mutschler
patent: 4382707 (1983-05-01), Anderka
patent: 4461591 (1984-07-01), Mutschler
patent: 4556336 (1985-12-01), Sano et al.

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