Film fasteners for flexible sheets
US4472862A · kind A · utility
25Cited by
18References
3Claims
0Family size
Inventors
Key dates
| Filing date | Aug 9, 1983 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Aug 9, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44077
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A film fastening system including a rigid base extrusion, and a locking member which fits into the extrusion to securely hold a sheet such as polyethylene or the like along edges or at its midportions relative to a support. The fastener includes a hinged locking cover which places a clamping force on the sheet being held. The cover also covers the free edge of the sheet material when installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.