Coating implements with material supply – Projectable and retractable tool – With means to apply force on material in reservoir
Patent
1986-11-03
1988-09-27
Bratlie, Steven A.
Coating implements with material supply
Projectable and retractable tool
With means to apply force on material in reservoir
401 99, 401151, 401270, 401272, 401274, A46B 1102
Patent
active
047737859
ABSTRACT:
A pin-shaped device for releasing a flowable medium comprises a housing having front and rear ends and an axis, a brush-like application element arranged to extend through the front end of the housing and displaceable in a an axial direction, a piston rod arranged to displace the application element, the piston rod being axially movable in a guiding opening of the housing, a pressure spring acting upon the piston rod so that the piston rod is movable in the guiding opening under the action of the pressure spring, a dosing piston being in communication with the application element, a control piston formed so that the control piston and the application element are fixedly connected with the piston rod, while the dosing piston is axially movable relative to the piston rod, a supply chamber and a dosing chamber formed in the housing and connected with one another such that the dosing chamber is alternatingly closable during the movement of the piston rod at axially opposite ends, and a sealing ring and a sealing cylinder arranged so that the control piston abuts at one end of the dosing chamber against the sealing ring, while the dosing piston lies at an opposite end of the dosing chamber in the sealing cylinder.
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Bratlie Steven A.
Striker Michael J.
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