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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.:

US 6205405 B1

PDFFull Text
Date of Patent:
Mar. 20, 2001

Filed:

Sep. 26, 1997

Device for determining the resistive torque of a rotating item of equipment, system for monitoring the operation of an electric motor and system for regulating the operating parameters of a centrifuge incorporating such a device

Applicant:
Inventor:

Michel René Muie Jacques Pouvreau, Pontchateau, FR;

Assignee:

Jouan, Saint Herblain, FR;

Attorney:

Larson & Taylor, PLC

Primary Examiner:

Hal Wachsman

Int. Cl.
CPC ...
G01L 1/00 ;
U.S. Cl.
CPC ...
G01L 1/00 ;
Abstract

A device for determining the resistive torque of an item of equipment driven by an asynchronous electric motor operated by a control unit delivering to the motor an alternating voltage for controlling the rotational speed of the motor includes a measuring unit for measuring the rotational speed, a calculator for calculating the motor slip from the said rotational speed and the synchronous speed of the magnetic field generated by the power-supply voltage and a comparator for comparing the calculated value of slip and a set of predetermined slip values each corresponding to a resistive torque value, so that the resistive torque of the item of equipment can be determined.

Find Patent Forward Citations

Pouvreau, Michel René Muie Jacques. (2001). Device for determining the resistive torque of a rotating item of equipment, system for monitoring the operation of an electric motor and system for regulating the operating parameters of a centrifuge incorporating such a device (U.S. Patent No. 6205405). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6205405

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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