Resources Contact Us Home
Dispensing pump with deformable pump wall and positive shut-off

Image Number 4 for United States Patent #6755327.

A container-mounted dispensing pump incorporates an elastically deformable pump wall and elastomeric valves for controlling the flow into and from the pump chamber. A mechanism at the movable end of the deformable pump wall engages the outlet valve to effect positive closure thereof when the actuator is disposed in an extended, shipping position. With the pump actuator placed in the shipping position, the close outlet valve will preclude leakage of the container contents though the pump.

  Recently Added Patents
Focus detection device and imaging apparatus having the same
Method and apparatus for detection of LVDT core fallout condition
Liquid dispensing apparatus
Method and apparatus for transmitting and receiving a signal in a communication system
Method and device for managing subscriber connection
Method and apparatus for triggering expiration of a data tag device
Wound dressings
  Randomly Featured Patents
Mobile phone
Sulfated benzothiophene derivatives, methods of use and formulations containing same
Sealed bearing roller cone bit having anti-plugging device
Optical system of liquid crystal projector
Adsorbent for the affinity-specific separation of macromolecular materials
Electric connection assembly for power supply with interlocking components
Aircraft wing with electrothermal deicing and/or anti-icing device
Modular grate arrangement for a five burner gas-on-glass cooking appliance
Memory controller method and system compensating for memory cell data losses
Relayed signal communications