Device for applying an insulating layer to a surface of an object
US5507869A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1993 |
| Grant date | Apr 16, 1996 |
| Priority date | — |
| Expiry date | Feb 26, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0015
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
According to a method for applying an insulating layer to a surface fibers, of an inorganic material an sprayed onto the surface under simultaneous wetting of the fibers with water and/or a binder so that the fibers stick to the surface whereafter the layer is formed and dryed/hardened. Prior to or after the drying/hardening a binder can be sprayed to the surface for the purpose of achieving a dustless and mechanically resistant surface layer. A device for applying of an insulation to a surface of an object (10), making use of the method, comprises a store (41) of fibers of an inorganic material, a conduit (20) for the transfer fibers from the store (41) to a spray nozzle (21) and device for generating an air flow in the conduit (20) directed towards the nozzle (21). Further, the device includes a first ejector (22) provided at the end of the conduit facing the store (41) for introducing air jets into the conduit (20) in the direction of the fiber stream but at an inclination with respect to the stream, a second ejector (23) disposed at the end of the conduit facing the spray nozzle (21) for the introduction of air jets directed so as to bring the fiber stream into rotation, and a …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.