Marine propulsion – Means for accomodating or moving engine fluids – Cooling for engine
Patent
1992-04-06
1993-12-28
Barefoot, Galen
Marine propulsion
Means for accomodating or moving engine fluids
Cooling for engine
137587, 220DIG27, B65D 2502
Patent
active
052734668
ABSTRACT:
A tubular vent device extends through a hole in the hull of a boat, well above the water line. The outer portion of the vent device has a circular ridge or shoulder larger than the hole through the hull to hold the outer portion outside of the hull. The inner portion is threaded to accomodate an inner nut with a collar or washer larger than the hole to let the nut draw the inner collar and outer shoulder tight against their opposing sides of the hull. The inner portion terminates in a coupling for a hose to connect to a tank to be vented. The outer portion of the vent, beyond the shoulder, is also threaded to receive a cap that has a series of fine, axial slots through its outer surface for ventilation. The end of the outer portion of the vent also has a tapered conical portion within the cap, with a pair of axial ridges on the outside just above a pair of axial ventilating slots that open the tubular vent to the fine slots in the cap. These fine slots in the cap provide ventilation with a minimum of exposure to rain, spray, insects, and foreign matter; and the inner, tapered, conical portion, with its axial ridges, provides ventilation while keeping water out of the inner tubular vent device and the tank.
REFERENCES:
patent: 1992151 (1935-02-01), Woodbridge
patent: 3924773 (1975-12-01), Wilkinson
patent: 4091956 (1978-05-01), Vecchio
patent: 4706840 (1987-11-01), Thompson
patent: 4825405 (1989-05-01), Whitley
patent: 4995433 (1991-02-01), Beicht et al.
patent: 5088947 (1992-02-01), Whitley et al.
Aviva Stephen P.
Barefoot Galen
Gunderson Charles F.
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