Marine engine gravity drain system

Details Marine engine gravity drain system Marine engine gravity drain system

2006-05-08

2008-10-21

Olson, Lars A (Department: 3617)

Marine propulsion

Means for accomodating or moving engine fluids

Cooling for engine

C440S08800J, C440S08800J

Reexamination Certificate

active

07438613

ABSTRACT:
A marine engine quick drain system that is comprised of several engine block drain connections, provided in the area of the engine that must be drained, which drain by means of flow tubes to a drainage connector, a drainage connector which preferable is mounted on a slight incline, stably supported upon a bracket, to the boat hull, the lower end of the collector having a drain valve, such as a spring loaded lever valve, connecting with another singular drain tube, to the hull drain port, such that when the levered valve is opened, all of the coolant fluids and water within the boat engine will drain back into the lake, to empty the engine of any freezable water, when the boat is stowed, upon a boat lift, as when not in usage.

REFERENCES:
patent: 4693690 (1987-09-01), Henderson
patent: 6050867 (2000-04-01), Shields et al.

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