Quick-on torque-override filler neck cap
US6325233A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 14, 2001 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Feb 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/33
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A cap (10) includes a handle (12), torque-transmission ring (16), a driver (14) coupled to handle (10) and ring (16), and a closure member (20) adapted to close a tank filler neck (42). A connector (18) couples ring (16) to closure member (20) to establish a torque-limited connection (26) during cap installation and a direct-drive connection (28) during cap removal. An axial spring (22) coupled to handle (12) and ring (16) yieldably biases ring (16) toward closure member (20) to maintain the torque-limited connection (26). A rotary spring (24) coupled to handle (12) and ring (16) rotates closure member (20) relative to handle (12) to a reset position upon removal of cap (10) from filler neck (42).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.