Coating implements with material supply – Projectable and retractable tool – With movable closure or gate
Patent
1988-03-28
1990-03-27
Apley, Richard J.
Coating implements with material supply
Projectable and retractable tool
With movable closure or gate
401107, 401117, B43K 900
Patent
active
049115707
ABSTRACT:
A sealing device for a liquid applicator of the type having a liquid applicator tip, with open and sealed positions. The end of the applicator through which the tip extends is petallate, with the petals sloped toward each other to define a circular opening at their distal ends. The petals are enclosed with a highly resilient member of generally truncated conical shape having an integral end portion which covers the circular opening. In the sealed position, the end portion defines a closed elongate channel along the longitudinal axis of the applicator, hermetically sealing the tip within the applicator and sealing around any debris that may be within the channel. In the open position, the end portion defines an open elongate channel, resulting from a shoulder associated with the tip forcing the ends of the petals outward to stretch the end portion of the resilient member as the tip is moved to the open position, thereby to open the closed channel, without the tip contacting the end portion. When the device is moved to its sealed position, the petals urge the channel closed. In another embodiment, the sealing device is moved between its open and sealed positions through the contraction and relaxation of a spring extension of the sealing device.
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Noryl Design Guide; General Electric, 6/84, pp. 44-45.
Apley Richard J.
Crosby D. F.
Crozier John H.
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