Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Fluid flow sensor










Image Number 2 for United States Patent #4297899.

A compact fluid flow sensor of the variable area type is disclosed which can accurately measure a broad range of flow rates and can be installed in any position relative to the horizontal plane and which is therefore particularly adaptable for use with vehicular fuel systems. The sensor comprises connected input and output housing members that retain between them a flexible diaphragm having an annular central orifice member. An adjustable needle valve is positioned within the orifice member to form a small, variable opening for fluid. The orifice member is connected to a core member of a differential transformer whose windings are connected to a circuit producing output signal responsive to the linear position of the core member. The varying pressure differential due to fluid flow rate created on opposite sides of the diaphragm causes the orifice member, and its attached core member, to move relative to the windings and produce an output from the differential transformer proportional to the fluid flow rate.








 
 
  Recently Added Patents
Device, system, and method for logging near field communications tag interactions
Business card assembly
Drug comprising as the active ingredient proliferative vector containing survivin promoter
Wearable display device
Process for the enzymatic reduction of enoates
System and method for providing private demand-driven pricing
Method, apparatus, computer program, and computer readable storage media for controlling the insertion of tab sheets into a print job
  Randomly Featured Patents
High-density plasma source for ionized metal deposition
Method for treating hyper-excited sensory nerve functions in humans
Downhole pulser
Funnel
Process for production of 3-(hydroxyphenylphosphinyl)-propanoic acid
Chemical-containing formed material of type of heating of whole the material, container for holding chemical-containing formed material, device for heating and transpiring chemical and indicat
Method for determining a desired image signal range from an image having a single background
Process for the preparation of trans-1,1,2-triphenyl-but-1-ene derivatives
Galley unit with cart lift for elevated cart storage
Apparatus for measuring surface scratches on a tube