Roofing membrane
US4977673A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 3, 1989 |
| Grant date | Dec 18, 1990 |
| Priority date | — |
| Expiry date | Mar 3, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D15/04
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for cutting a roofing membrane is described. The apparatus includes a frame, means coupled to the frame for facilitating movement of the frame over a roofing membrane, a blade coupled to the frame for cutting the roofing membrane, and a guide member coupled to the frame for guiding the frame over the membrane. The guide member may include an edge guide and a bar coupling the edge guide to the frame. The edge guide is adapted to cooperate with an edge of the roofing membrane to move the frame along and parallel to the edge of the membrane. The guide member may be adjustable to permit the edge guide to be moved relative to the blade.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.