Opener for split ring key holder
US4325273A · kind A · utility
Inventor
Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/873
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A set of keys conventionally carried on a split ring key holder is augmented by a slot-headed wedging probe, having a heavier wedge end than head end, and having a slot length to overall length ratio that permits the probe to be rotated through the central opening of the split ring. When a key is to be slipped onto or off the split ring, the device is manipulated to insert the wedging probe between the split ring turns near the relevant end of the split. Thus the split is easily temporarily opened up and the key-slipping act is begun. Then the wedging probe device may be let loose from the user's grasp, whereupon it will naturally turn around and rejoin the set of keys still mounted on the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.