Resources Contact Us Home
Grinding machine

Image Number 2 for United States Patent #4589230.

A grinding machine including a grinding wheel spindle motor for rotating a grinding wheel, a workpiece spindle motor for rotating a workpiece such as a gear to be ground in mesh with the grinding wheel, and a traverse motor for moving a table supporting the workpiece spindle motor. A power detector and a comparator are connected to a driver circuit for the grinding wheel spindle motor. When a load on the grinding wheel in mesh with the workpiece is increased, such a load increase is detected by the power detector and applied to a comparator. If the load signal is in excess of a reference level, then the application of a drive signal to the traverse motor is interrupted or a speed at which the workpiece is traversed relatively to the grinding wheel is reduced.

  Recently Added Patents
Systems and methods for DC-to-DC converter control
Catecholic butanes and use thereof for cancer therapy
Atmospheric treater with roller confined discharge chamber
Optical receiver and optical transfer apparatus
Process for manufacturing a self-sealing composition
Automatic search system and method
  Randomly Featured Patents
Ultrasonic tape guide apparatus
Air temperature measurement
Storage container for a miniature disk catridge
Latch actuator
Cover for a standard flange for gas-insulated switchgear
Method and apparatus for measuring the distance and/or relative elevation between two points
Apparatus and method for controlling ignition of multi-cylinder internal combustion engines with a passageway that bypasses throttle valve
Safety fitting for a vacuum orifice in a swimming pool
Sporting footwear
Post-metal ion implant programmable MOS read only memory