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










Image Number 2 for United States Patent #7654220.

An indicator has a permanent magnet and a coil rotatably supported on the permanent magnet and wound so as to form a surface that is parallel to and disposed at a preselected distance from a bottom surface of the permanent magnet. The coil generates a torque by interaction with a magnetic field of the permanent magnet upon supply of a current to the coil. An indicator needle is mounted to undergo rotation with the coil through a range of angles corresponding to indicator angles of the indicator needle. A pair of spiral springs urge the indicator needle in a direction opposite to a direction of the torque to undergo rotation through the range of indicator angles. The pair of spiral springs comprise a first spiral spring connected at one end thereof to one end of the coil and a second spiral spring connected at one end thereof to another end of the coil. The first spiral spring is larger than the second spiral spring and is arranged on an outer peripheral side of and coaxially with the second spiral spring so that the first and second spiral springs lie on a common plane.








 
 
  Recently Added Patents
Dye-sensitized solar cell, dye-sensitized solar cell module, and coating liquid for forming electrolyte layer
Detecting mirrors on the web
Peptide vectors
Soybean cultivar CL1013665
Method, apparatus, and system for energy efficiency and energy conservation including dynamic cache sizing and cache operating voltage management for optimal power performance
Method and structure of forming backside through silicon via connections
Identifying conceptually related terms in search query results
  Randomly Featured Patents
Method for testing parts, especially of nuclear plants, by means of eddy current
Electronic communication delivery confirmation and verification system
Diamond
Low density, polybutadiene based, wet filament winding resin
System for interrogating a passive transponder carrying phase-encoded information
Clock
AGC circuit for radio receiver having AGC sensitivity compensated by if output signal
Process cell for an N-dimensional processor array having a single input element with 2N data inputs, memory, and full function arithmetic logic unit
Digital computer code word identification system
Ultrafine particle dispersed glassy material and method