Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Mixing rotary positive displacement pump for micro dispensing










Image Number 5 for United States Patent #8469231.

A dispensing apparatus, which is capable of delivering precise quantities of a liquid product less than one mm.sup.3 in size, includes a drive mechanism, a housing made up of at least two input channels coupled to a chamber made up of a first portion and a second portion. First and second component liquids are delivered via the first and second input channels respectively to the chamber and the first and second input channels are disposed so that interaction is hindered between the first component liquid and the second component liquid in either input channel. At least one feed screw with a helical thread is disposed in the chamber such that when the at least one feed screw is rotated by the drive mechanism the first and second component liquids are mixed to form a liquid product and the feed screw rotation also discharges the liquid product from the chamber.








 
 
  Recently Added Patents
Secure service for enabling communication for calling party when communication service for called party is suspended
Virtual image display device and manufacturing method of virtual image display device
Semiconductor memory device and method for driving the same
Signal processing apparatus and methods
Controller interface providing improved data reliability
Wireless communication system and wireless communication method
(4935
  Randomly Featured Patents
Electronic battery testing device loose terminal connection detection via a comparison circuit
Electronic instrument for locating and diagnosing automotive chassis sounds
Reaction cured glass and glass coatings
Rain barrel
Instruments and methods for minimally invasive tissue retraction and surgery
Retaining device
Methods for repairing water-cooled generator stator bar clips
Angle entry rotary valve
Liquid crystal display device
Ice cream cone making machine