J-channel member for siding
US4920709A · kind A · utility
37Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 1989 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Apr 11, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04F19/061
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
J-channel member comprises a relatively rigid plastic back leg and channel bottom wall, with spaced apart slits along the length of the back leg to permit bending of the bottom wall around a radiused opening, and a relatively flexible plastic front leg which permits stretching of the front leg during such bending of the bottom wall while leaving the front leg intact. At the outer end of the front leg is an inturned annular lip which is urged radially inwardly into engagement with the trimmed ends of vinyl or aluminum siding received in the channel to help hold the siding down and enhance the overall appearance of the joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.