Quick change oil filter
AssigneeDeere & Company
InventorsJeremy P. Robison, David W. Geiger, John L. Bocksnick
Life of this patent
Estimating the term…
Abstract
A quick change oil filter incudes a filter canister and filter base that may be installed and removed manually from an engine adapter on an internal combustion engine. The filter canister and filter base may hold at least about one third of the required engine oil supply when removed from the engine adapter. The engine adapter includes an oil inlet passage, an oil outlet passage, and a filter base mounting cavity. A check valve is biased to close an oil outlet opening from the filter canister, trapping oil inside the filter canister when it is removed from the engine adapter.
Claims4
A quick change oil filter, comprising:
- a filter canister and a filter base attached thereto and rotatably engaged on an internal combustion engine;
- an oil outlet tube extending partially through an inside of a filter element in the filter canister to control an oil depth inside the filter canister;
- and
- a check valve positioned at a bottom end of the oil outlet tube that is pushed open when the filter canister and the filter base are engaged on the internal combustion engine, and closed trapping oil inside the filter canister up to a top end of the oil outlet tube when the filter canister and the filter base are rotatably removed from the internal combustion engine.
Dependencies are inferred from the claim text.