Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Filter unit on equipment requiring ventilation free of dust and impurities during operation

Filter unit on equipment requiring ventilation free of dust and impurities during operation

US Patent 4659349 · Granted Apr 21, 1987

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Encoder with absolute signal processing and incremental signal output and method2007
Measuring system for recording angular and linear absolute values2006
Measuring device to record values, in particular angles or linear segments2006
Measuring system for recording angular and linear absolute values2005
Measuring system for recording absolute angular or position values2005
Measuring system for recording absolute angular or position values2005
Measuring system for recording absolute angular or position values2005
Arrangement and process for interpolating a measured signal2004
Sensor system for measuring angles and positions2003
Method and apparatus for measuring angles and/or distances2003
Position encoder for determining the angle or position and the total angle on di2003
Measurement transmitter and method for measuring a position of a sensing head wi2003