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US 4,875,884 AGranted
Marine propulsion device with thru-transom engine oil drain system
AssigneeBrunswick Corporation
InventorGary L. Meisenburg
Life of this patent
Estimating the term…
Abstract
A fluid flow tube (9) is provided which extends from the lower portion of the engine oil pan (7) to a point on the boat transom (2) below the pan. The upper end portion of the tube is connected through a control valve (10) which communicates with the pan interior. The lower or discharge tube end portion is connected through a fitting (11) extending through the transom. A removable plug (17) is associated with the fitting and, when removed, permits oil to drain out through the transom and into an oil collection receptacle when the control valve is open.
Claims4
In a marine propulsion device, the combination comprising:
- (a) a boat (3) having a transom (2) at its stern end,
- (b) a marine internal combustion engine (5) disposed inboard of said boat,
- (c) an oil pan (7) mounted to said engine,
- (d) and means (9-11) for draining oil by gravity from said oil pan and through said transom to the exterior of said boat.
1 more element
Dependencies are inferred from the claim text.