Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Spinner tool for boreholes










Image Number 3 for United States Patent #3982433.

A spinner tool comprises an elongate, cylindrical housing including a portion having elongate, axially extending, angularly disposed slots formed therethrough at circumferentially spaced points. An impeller is mounted within the housing and comprises circumferentially spaced, axially extending blades which are each J-shaped in cross-section so that the impeller is rotated in response to radially directed fluid flow entering the slots of the housing, but is not rotated in response to axial fluid flow. The impeller is mounted on a shaft which is supported by bearing structure that is substantially self-cleaning under the action of fluids flowing through the housing. A plurality of magnets are secured to the shaft for rotation under the action of the impeller, and a reed switch is positioned for actuation by the moving magnets to generate an output signal indicative of rotation of the impeller. Electronic circuitry is provided in the housing for amplifying and shaping the output signal from the reed switch. The spinner tool is utilized in a well logging system including apparatus for lowering the spinner tool into a borehole and a recorder for providing a plot of the rotation of the impeller as a function of the position of the spinner tool in the borehole.








 
 
  Recently Added Patents
Sliding-type portable communication device
Optimized control of an energy supplying system and an energy consuming system
Polymorphic forms of 3-(1-{3-[5-(1-methyl-piperidin-4-ylmethoxy)-pyrimidin-2-yl]-benzyl}-6-oxo- -1,6-dihydro-pyridazin-3-yl)-benzonitrile hydrochloride salt and processes of manufacturing t
Method and system for streaming digital video content to a client in a digital video network
Resistor and manufacturing method thereof
Crystalline form of (R)-7-chloro-N-(quinuclidin-3-yl)benzo[b]thiophene-2-carboxamide hydrochloride monohydrate
Sub-LUN input/output profiling for SSD devices
  Randomly Featured Patents
Bird feeder
UV-curable, non-chlorinated adhesion promoters
Compliant air bearing slider with wide midpoint rails for reliable proximity recording
Apparatus for collecting and unloading hay bales and the like
Anti-tumor compounds of platinum
Simple, mechanism-free device, and method to produce vortex ring bubbles in liquids
Electrosurgical device with improved visibility
Tube shaft for a vacuum cleaner
Laminated polyester film, flame-retardant polyester film thereof, copper-clad laminated plate and circuit substrate
Propionic acid derivatives