Stone post guide system
US5551662A · kind A · utility
Inventor
Key dates
| Filing date | Oct 17, 1995 |
| Grant date | Sep 3, 1996 |
| Priority date | — |
| Expiry date | Oct 17, 2015 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/1841
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A jig having top and bottom collar with the top collar being either smaller than the bottom collar or the same size. The collars are joined by four stakes welded to the bottom collar which are used to level the jig. A third collar, called a centering collar, is attached to the top collar and has a pipe attached to it which extends down into the center of the jig to suspend a second pipe in the exact center of the jig. The centering collar and pipe have a lifting eye attached thereto, so a crane can lift the jig and completed stone post and move it to a new location. The stakes of the jig can be used as a guide to plumb and level stone which can be laid to form a stone post.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.