Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Metering pump










Image Number 4 for United States Patent #4415314.

A fluid pump for location within a reservoir and which is operable with rise and fall of liquid within the reservoir. The pump comprises a tube of a resiliently deformable material, an abutment surface which is engaged by the tube and a float device which is mounted to the tube. Liquid entering the reservoir causes upward movement of the float device and such movement of the float device causes increasing engagement between the tube and the abutment surface. The increasing engagement between the tube and the abutment surface causes the tube to deform resiliently and a localized reduction in the contained volume of the tube is thereby effected to cause expulsion of fluid from the tube. Conversely, as the liquid level falls in the reservoir, the float device moves downwardly to reduce the extent of engagement between the tube and the abutment surface, so that the tube tends to resume its initial contained volume.








 
 
  Recently Added Patents
Sink
Diazeniumdiolated phosphorylcholine polymers for nitric oxide release
Method for driving electrophoretic display device, electrophoretic display device, and electronic device
Universal handle extension for unloading butterfly valve for tank trailer or other vehicle
Current collector for lead acid battery
Tool bag with removable tool wall
Method and system for reciprocal mixing cancellation of wideband modulated blockers
  Randomly Featured Patents
Method and apparatus for determining latch position for decision-feedback equalization using single-sided eye
Semiconductor memory device and system
Dimensionally stable asbestos diaphragm coated foraminous cathode
Robotic-humanoid toy assembly
Atomic oscillator and manufacturing method
Resilient rod for neck and body support and comfort
Packaging device for disc-shaped items and related materials and method for packaging such discs and material
Vane anemometer having a modular impeller assembly
Digital to analog converter and method for digital to analog conversion
Method and apparatus for setting recording current in perpendicular magnetic recording apparatus