Marking instruments

Details Marking instruments Marking instruments

1998-06-12

2000-02-22

Eloshway, Charles R.

Coating implements with material supply

Material flows through porous tool

With flow-regulator

401148, B43K 518

Patent

active

060272740

ABSTRACT:
A marking instrument includes a reservoir chamber for marking fluid, a channel for conducting marking fluid from the reservoir chamber for supply to a marking tip, and a valve for controlling supply of fluid through the channel. The valve includes a seat member with a port, a diaphragm having an edge for cooperation with the seat member to close the port, and a free surface extending from the edge to a position at which the diaphragm is held against movement. The seat member is movable to deflect the diaphragm for opening the valve. The free diaphragm surface extends away from the edge at an angle of 45.degree. to 85.degree. when the valve is closed.

REFERENCES:
patent: 2557917 (1951-06-01), Schlesinger
patent: 2762337 (1956-09-01), Beckwith
patent: 2996750 (1961-08-01), Cholet
patent: 4973180 (1990-11-01), Hori
patent: 5249875 (1993-10-01), Hori et al.

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