Vehicle radiator cap
US5114035A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1991 |
| Grant date | May 19, 1992 |
| Priority date | — |
| Expiry date | Oct 31, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/32
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vehicle radiator cap for closing a radiator filler neck is disclosed. The radiator cap includes a central rivet for securing a crown, a bell housing, and a discoid spring and having a flared shank permitting free turning of the crown relative to the primary sealing gasket. The cap further includes a pressure spring nested within the bell housing and centered directly above an annular valve seat in the radiator filler neck. The upper turn of the spring nests in the shoulder region of the bell housing and the bottom turn biases a seal support plate against the annular valve seat. The seal support plate has an integrally formed cylinder having a lip which retains a vacuum seal in sealing relationship with the bottom surface of the seal support plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.