| Patent Number |
Title Of Patent |
Date Issued |
| 5073714 |
Method and apparatus for detecting amplitude and frequency of web flutter using infrared optical |
December 17, 1991 |
| Web flutter in a papermaking machine is monitored by a device which illuminates a portion of the web with infrared light and uses an infrared sensor to monitor the resulting infrared light scattered back from the web. Preferably two infrared light transmitters are used which are angled |
| 5022166 |
Flutter suppression air foils |
June 11, 1991 |
| Apparatus and methods for reducing the amplitude and frequency of web-edge flutter associated with drawing web materials are provided. The apparatus includes a pair of air foils disposed proximate to a pair of opposing planar surfaces of the web. Each of the air foils includes a first co |
| 4992142 |
Method for determining amplitude and frequency of web flutter |
February 12, 1991 |
| An apparatus and method for determining the frequency and amplitude of flutter of a moving web in a web manufacturing operation, is shown to include a sensor for sensing the pressure of air in a region proximate the web and for generating a pressure signal reflective of the air pressure |
| 4968386 |
Apparatus for determining amplitude and frequency of web flutter |
November 6, 1990 |
| An apparatus and method for determining the frequency and amplitude of flutter of a moving web in a web manufacturing operation, is shown to include a sensor for sensing the pressure of air in a region proximate the web and for generating a pressure signal reflective of the air pressure |
