Coating implements with material supply – Including means to apply material-moving force – By compression or suction of gas in reservoir
Reexamination Certificate
2007-06-21
2009-10-20
Walczak, David J. (Department: 3751)
Coating implements with material supply
Including means to apply material-moving force
By compression or suction of gas in reservoir
C401S101000, C401S18800A, C401S187000, C401S143000
Reexamination Certificate
active
07604427
ABSTRACT:
A pressurized pen having excellent feeling of using it by allowing an easy knocking operation with small force is disclosed. The pressurizing member18includes an elastic cylindrical member19. The elastic cylindrical member19has a large-diameter front cylinder portion of which a front end20ain air-tight manner communicates directly with the rear opening portion6bof an ink containing tube6and which forms the pressurizing chamber22, and a small-diameter rear cylinder portion21which is coaxially connected to a rear end of the front cylinder portion20and in which the front end portion17aof the pressing member17is pressed into a rear aperture21athereof. The inside of the ink containing tube6is pressurized by allowing the pressing member17to press the rear cylinder portion21into the front cylinder portion20and compressing the elastic cylindrical member19in the axial direction with the pressing chamber22air-tight.
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European Search Report dated Nov. 28, 2007.
European Search Report dated Nov. 16, 2007.
Edwards Angell Palmer & & Dodge LLP
Gumbs Keegan
Tombow Pencil Co. Ltd.
Walczak David J.
Wofsy Scott D.
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