Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Electro optical control to detect a filament passing through a guide eye and using a light emitting diode

Electro optical control to detect a filament passing through a guide eye and using a light emitting diode

US Patent 4233520 · Granted Nov 11, 1980

Estimated economic value: $2,212,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus for determining fabric tension1984
Method of and apparatus for detecting the level of molten glass in a glass melti1982
Method of and apparatus for sensing the level of molten glass in a glass melting1982
Ultrasonic batch sensing apparatus for glass-melting furnaces1981
Electro-optical strand detector1981
Apparatus for measuring tension in a linear material1980
Method and apparatus for maintaining the concentricity of a molded pipe1980
Batch sensor for glass-melting furnaces1980