Apparatus and method for welding overlapping water-proof membranes to each other
US7094298B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2004 |
| Grant date | Aug 22, 2006 |
| Priority date | — |
| Expiry date | Jul 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1788
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus for heat welding together thermoplastic membranes mounted on a surface includes a frame, a support member connected to the frame, a nozzle mounted on the support member to receive heated air, weld wheels mounted on the support member adjacent to, and immediately following, the nozzle for pushing a heated portion of an upper membrane toward a lower membrane to effect a weld, wherein the support member is adapted to be fixed to the frame member in a first position proximate a first side of the frame for welding the two membranes together, is releasable from the first position, is movable to a second position nearer a second side of the frame, and adapted to be releasably fixed to the frame at the second position for welding a membrane to an underlying edge piece mounted on a free edge of the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.