The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 10, 2003
Filed:
May. 05, 2000
James Allan Fisher, Kettering, OH (US);
Other;
Abstract
Methods and apparatus are provided for motor testing wherein performance characteristics are determined for motors exhibiting linear operating characteristic curves without making contact with shafts of the motors during testing. More particularly, a motor to be tested is operated in one direction to a no-load speed and then reversed with current and speed measurements being made during this testing period. A full load or stall point or points and a no-load point or points are determined from the measurements so that linear speed versus torque and/or current versus torque motor characteristic curves can be generated for the motor. Multiple voltages can be applied to determine a family of characteristic curves for the motor.