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 Fluid dispensing device

Details
Inventors: McIntyre, Phillip;
Assignee:
Primary Examiner: Skaggs; H. Grant
Assistant Examiner: Noland; Kenneth
Attorney, Agent or Firm: Sperry, Zoda & Kane

A fluid dispensing device having a container with a collapsible body section and an upper neck which is adapted to receive therein a dispensing head which is automatically self-closing. The dispensing head has a housing defining a dispensing channel vertically therethrough in which a valve is positioned having a valve head for abutting a valve seat defined in the upper portion of the dispensing channel and a valve stem extending downwardly to a valve flange. A resilient member is secured to the upper face of the valve flange and in contact with the bottom surface of the housing to urge the valve into a closed position. The spring is positioned outwardly from the valve stem and exerts bias at multiple exterior points about the valve flange to create a completely equal and upwardly directed bias in order to maintain smooth operation of movement of the valve between an open and a closed position. Fluid flow holes are defined in the flange to facilitate the flow of fluid out the annular dispensing channel defined between the external diameter of the valve stem and the internal diameter of the dispensing channel. A one-way check valve is located in the housing of the dispensing head or the container to facilitate the flow of air from the external environment. The valve flange can include a plurality of individual struts in a wheel-like configuration.

DETAILED DESCRIPTION The present invention provides a fluid dispensing device having a container means with a body section adapted to receive and retain fluid therein for dispensing.
The body section defines a fluid chamber therein for holding the undispensed fluid.
Furthermore, the container means includes an upper neck section which defines an outlet therein at the uppermost portion of the body section which is adapted to receive the dispensing head.
The dispensing head is automatically self-closing and includes a housing member which is mounted in the outlet of the upper neck section and defines a dispensing channel extending vertically upwardly therethrough.
The housing defines a valve seat adjacent to the uppermost end of the dispensing channel.
The housing member also defines an abutment shoulder adjacent to the lower edge of the dispensing channel for receiving the upper end of a spring or other biasing means thereagainst.
This abutment shoulder is referred to as the first abutment shoulder.
A valve is movably positioned in the housing and is mounted extending vertically through the dispensing channel.
The valve is adapted to move between an open and a closed position as desired in order to control fluid flow communication between the fluid chamber and the external environment.
Movement to the closed position is automatic upon release of the fluid dispensing device whereas movement to the open position is urged by the user exerting pressure on the exterior portion of the body section.
The valve means includes a valve head which is capable of abutment with respect to the valve seat to close the valve means and prevent fluid flow communication between the external environment when the valve is in the closed position.
The valve head is also capable of movement away from the valve seat to thereby allow fluid flow communication between the fluid chamber and the external environment when the valve means is in the opened position to facilitate the controlled dispensing of fluid from the chamber



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