Automotive oil level control apparatus
US5195678A · kind A · utility
2Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1991 |
| Grant date | Mar 23, 1993 |
| Priority date | — |
| Expiry date | Dec 20, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D23/08
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A fluid level control valve has a base with an aperture formed therethrough. A cover is movably disposed over the aperture and is biased by a thermostatic element in a direction tending to close the aperture. The thermostatic element is a generally U-shaped strip having one end mounted on the base with its opposite end biased against the cover. The cover is adapted to pivot about one hinge at temperatures below a selected temperature value and pivot about a second hinge at temperatures above the selected value. A second embodiment particularly adapted to accommodate different flow rates employs a movable first hinge location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.