Low profile threaded lock cap
US4083209A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1977 |
| Grant date | Apr 11, 1978 |
| Priority date | — |
| Expiry date | Jun 29, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5606
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A low-profile locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axially inwardly opening pockets, and the closure includes flexible pawl fingers for engaging the pockets to provide a driving connection between the closure and race which is positive in the cap removal direction and torque-limited in the cap advancing direction. The race also includes a set of peripherally spaced, radially inwardly projecting teeth, and the shell is molded to provide a pair of flexible drive fingers for engaging the peripherally spaced and radially inwardly projecting teeth to provide a driving connection between the shell and race which is positive in the cap advancing direction and torque-limited in the cap removal direction for free ratcheting of the cap when it is in position on the filler neck and locked. A lock-controlled blocking member is movable by the lock to a cap removal position. The blocking member engages the drive fingers, when in the cap removal position, to prevent the drive fingers from f…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.