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
Digital photographing apparatus and control method for evaluating validity of an auto-focus operation
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Secure provisioning of a portable device using a representation of a key
2,5-disubstituted piperidine orexin receptor antagonists
Three-term predictive adder and/or subtracter
Method and system for providing intelligent call rejection and call rollover in a data network
Antibodies to CCR2
  Randomly Featured Patents
Fail-fixed servovalve with controlled hard-over leakage
Process for the production of shaped articles of niobium or tantalum by electrochemical etching
Seismic sensor array
Plural-nibbed writing instrument
Combination tool
Long-wearing plastic bearings
Ion implantation source and device
Electrical circuitry with threshold control
Multidirectional fatigue damage indicator
Dry powder formulations