Warning device for marine engines for small craft

Details Warning device for marine engines for small craft Warning device for marine engines for small craft

2007-07-24

2007-07-24

Avila, Stephen (Department: 3617)

Marine propulsion

Means to control the supply of energy responsive to a sensed...

Reexamination Certificate

active

11212374

ABSTRACT:
An apparatus provides a warning of propeller rotation or CO/CO2hazard in a marine craft and includes a sensor in communication with the propeller to directly or indirectly sense rotation of the propeller and to generate a signal in response to the hazard, a controller coupled to the sensor to process the signal from the sensor, and a sensory alarm coupled to the controller to generate a warning alarm signal when the sensor returns a signal indicative of a predetermined state of hazard, namely actual rotation of the propeller from a nonzero rpm to a user or factory defined rpm or CO/CO2levels at or above a predetermined maximum.

REFERENCES:
patent: 6424267 (2002-07-01), Schell
patent: 6969287 (2005-11-01), Motsenbocker
patent: 2004/0169969 (2004-09-01), Takeda

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