Anchored tie-down ring
US6138975A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | Oct 31, 2000 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T70/5872
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An anchored tie-down ring that mounts in or on a concrete surface to which a movable object can be secured. One embodiment includes a generally U-shaped ring with a hollow cylindrical crossbar that sits within a cavity in a block mounted flush with a concrete surface. One end of each of a pair of legs fits into the crossbar and acts as a bearing on which the ring pivots. The legs extend through the block into the concrete as an anchor. Another embodiment includes a generally U-shaped ring that is pivotally mounted in a block. Anchor bolts extend through holes in the block into the concrete surface. A rounded cover is secured to the block, denying access to the anchor bolts, and includes a cavity so that the ring lays horizontally within the cover when not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.