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
Vehicle front fender
Semiconductor device including insulating layer of cubic system or tetragonal system
Reoccuring keying system
Imaging device, method and computer readable medium
Focus detection device and imaging apparatus having the same
Bias voltage generating circuit and switching power supply thereof
Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium
  Randomly Featured Patents
Specimen stage-moving device for charged-particle beam system
Optical sensor
Multi-step deposition and etch back gap fill process
CO.sub.2 cleaning system and method
Method and device for evaluating and improving the quality of transmission of a telecommunications signal through an optical fiber
Coupling device to prevent fluid leakage
Amino acid derivatives
Arrangement and approach for coupling power supplies using controlled switching techniques
Packet processing apparatus and method codex
Articles coated with in vivo polymerizable ophthalmic compositions