| 摘要 |
An apparatus for injecting bead insulation into cavity walls. The apparatus comprises a pump and a dispensing head, the pump being located between a source of bead insulation and the dispensing head. In use, the pump draws bead insulation from the source into the pump, and pumps the drawn bead insulation to the dispensing head. The preferred apparatus is connectable to a source of adhesive and further including means for introducing said adhesive into said bead insulation at the dispensing head. |
