Flexible high collar roof flashing
US5390451A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 1992 |
| Grant date | Feb 21, 1995 |
| Priority date | — |
| Expiry date | Sep 2, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D13/1471
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A roof flashing for sealing an opening in a roof through which an upstanding pipe extends includes a base member having an opening for passage of the pipe and a collar attached to the base member surrounding the opening in the base member for receipt of the pipe when the base member is attached to the roof. The collar has corrugations which permit the collar to be expanded and compressed to different lengths to accommodate different length pipes within the collar. The corrugations at the outer end of the collar are flattened out to facilitate folding of the outer end over an upper end of the pipe to form a watertight seal between the collar and pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.