Apparatus and method for dispensing a fluid

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United States of America Patent

PATENT NO 9468279
SERIAL NO

14257507

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Importance

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Abstract

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A fluid transfer assembly comprises a housing for accommodating a fluid. A bellows member disposed in the housing defines an opening therethrough adapted to be in fluid communication with an applicator assembly. The bellows member is adapted to operatively engage the applicator assembly for extension in a first direction and contraction in a second direction. The bellows member seals against the inner surface of the housing during extension and contraction for defining a variable volume chamber with the housing. Expansion of the bellows member in the first direction reduces the chamber volume for generating positive pressure in the housing and forcing fluid through a valve to the applicator assembly. Contraction of the bellows member in the second direction increases the chamber volume for generating negative pressure within the housing for drawing fluid into the chamber.

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Patent Owner(s)

Patent OwnerAddress
BLOKROK INC118 STONEBRIDGE DRIVE CHAPEL HILL NC 27514

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Forrest, Brad Cary, US 26 113
Megaro, Arianna Chapel Hill, US 8 15
Megaro, Matthew Chapel Hill, US 8 15

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