| Patent Number |
Title Of Patent |
Date Issued |
| 6441353 |
Integrated roller unit |
August 27, 2002 |
| The invention relates to roller unit consisting of an inductively heated roller, a drive motor, an inductor and a frequency converter. According to the invention not only the converter but also the temperature regulator for the induction heater and monitoring devices for the roller, heat |
| 6023222 |
Method of monitoring a plurality of control loops by regulation ratio monitoring |
February 8, 2000 |
| For monitoring the appropriate operation of a plurality of control loops having the same setpoint, the control ratio is measured at each controller, is normalized and an alarm signal is generated if said normalized control ratio exceeds a predetermined alarm band. |
| 5142280 |
Apparatus for a contact-free transmission of electrical signals |
August 25, 1992 |
| In an apparatus for contact-free transmission of condition responsive electrical signals from a rotating machine part to a stationary machine part a single rotational transformer having a stationary primary winding and a rotating secondary winding is used for (a) transmitting power suppl |
| 4908564 |
Device for speed control of an asynchronous motor |
March 13, 1990 |
| The properties synchronous motors are provided to an asynchronous motor fed with the aid of a digital speed control via a static converter. For this purpose, a signal proportional to an integral of the rotation-speed deviation, and a signal corresponding to the rotation-speed set-point |
| 4611410 |
Apparatus for the heat treatment of synthetic yarn |
September 16, 1986 |
| An apparatus for the heat treatment of synthetic yarn is provided where synthetic yarn is provided by a synthetic yarn source and is fed via rollers to a first heating surface and then via a heating pin to a second heating surface and from there via rollers to a warping beam. A speed |
| 4332151 |
Apparatus for heat treatment of synthetic yarns and fibers |
June 1, 1982 |
| For heating synthetic yarns and fibers an elongated vessel filled with saturated steam is provided through which the yarn is continuously drawn. The steam condensates on the yarn and transfers its condensation heat to the yarn. For sealing the vessel (3) at the inlet (2) and the outlet ( |
