Remotely controlled crankcase oil drain valve
US3954250A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1975 |
| Grant date | May 4, 1976 |
| Priority date | — |
| Expiry date | Jan 14, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/6881
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A two position drain valve or cock is installed permanently in the threaded drain plug opening of an automotive crankcase. The spherical rotary valve element is operated by a crank arm arranged exteriorly of the valve casing on a valve actuating rotary shaft. The crank arm is shifted between valve open and valve closed positions by a push-pull cable assembly including a manual lever pivoted to a mounting bracket which is installed under the hood of an automobile at a conveniently accessible location. Detent means is provided to lock the manual lever in a valve closed position. The shipping package containing the apparatus in kit form may be utilized to receive the dirty oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.