Expansible hole anchor with enlarged chock-releasing striker head
US7258316B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Mar 1, 2005 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | Mar 1, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S248/925
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An expansible anchor is adapted for inserting into a hole formed with a structure. The anchor includes a load cable and a first chock attached to an end of the load cable. A second chock resides adjacent to the first chock, and is adapted for movement between an anchor-contracting position and an anchor-expanding position. In the anchor-contracting position, the anchor is readily inserted into and removed from the hole of the structure. In the anchor-expanding position, the anchor is locked inside the hole of the structure. A chock-release column bears against at least one of the first and second chocks and has an enlarged head adapted for locating outside of the hole. The enlarged head defines a striking surface adapted for receiving a sudden force. This force is transferred through the chock-release column to the first or second chocks, such that the second chock is movable from the anchor-expanding position to the anchor-contracting position to thereby dislodge the anchor from the hole of the structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.