Method and apparatus for hollow metal fabrication
US6698156B2 · kind B2 · utility
1Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2001 |
| Grant date | Mar 2, 2004 |
| Priority date | — |
| Expiry date | Jul 15, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06B1/52
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for constructing hollow metal frames having a grout filled interior is disclosed. An apparatus includes a substantially planar body having an upper and lower surface. The upper surface includes at least one grip. The lower surface includes a gasket and a number of protrusions. The protrusions are placed into holes on the hollow metal frame into which additional components such as hinges are to be added. Grout is added to the frame and allowed to harden. Once the grout is hardened, the grout guard is removed and air spaces are retained. Screws and other components are typically filled into the air spaces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.