Signal indicating device on internal combustion engines

Details Signal indicating device on internal combustion engines Signal indicating device on internal combustion engines

1977-10-31

1979-03-06

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123 417, 55274, 55DIG34, 73118, 123198E, F02B 7708, B01D 4600, F02M 3506

Patent

active

041425030

ABSTRACT:
A signal indicating device for an internal combustion engine. The internal combustion engine has a sound absorbing shell surrounding the engine body. An air intake pipe is mounted on the engine and an air intake filter is mounted on the inlet end of the air intake pipe. The signalling device is provided to indicate the degree of contamination of the air filter. The signaling device can be a visual signal or an audible signal.

REFERENCES:
patent: 2798465 (1957-07-01), Nicholson
patent: 3066527 (1962-12-01), Stein
patent: 3258960 (1966-07-01), Baden et al.
patent: 3397395 (1968-08-01), Pierce
patent: 3443365 (1969-05-01), Lee et al.
patent: 3488928 (1970-01-01), Tarala
patent: 3939457 (1976-02-01), Nelson
patent: 3949726 (1976-04-01), List
patent: 3964462 (1976-06-01), Thien et al.
patent: 4033733 (1977-07-01), Nelson
patent: 4040295 (1977-08-01), Romann

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