Repair method for drywalls and like construction materials
US4776906A · kind A · utility
23Cited by
7References
2Claims
0Family size
Inventor
Key dates
| Filing date | Dec 29, 1986 |
| Grant date | Oct 11, 1988 |
| Priority date | — |
| Expiry date | Dec 29, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is provided for masking a crack in a drywall or plaster surface of a dwelling, comprising the steps of die cutting a repair patch from a heat-shrinkable plastic film of a defined size presenting a surface area adapted to be placed in covering relation over the crack and bounded about its periphery by surrounding edges. The patch is prepared with an adhesive confined to the surrounding edges only and is placed over the crack making an initial attachment to the drywall and heat is applied to the patch, to cause a contraction in size of the patch while exerting a pressure normal in size in the patch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.