G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 21/00 (2006.01) B01D 46/44 (2006.01) F02M 35/09 (2006.01)
Patent
CA 2169982
An indicating apparatus for indicating a vacuum, particularly for indicating the vacuum on the filtered-air side of an air filter for an internal-combustion engine, including a housing and a piston which is movably disposed in the housing and which separates a vacuum area from an ambient-pressure area. A snap element is provided which is activated by the piston and, at a predetermined vacuum, triggers an electric contact.
Kochert Stefan
Moessinger Klaus
Borden Ladner Gervais Llp
Filterwerk Mann & Hummel Gmbh
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