초록 ▼

An expanding device for expanding strand material into a wool-type product includes outer and internal nozzle sections. The outer nozzle section has an entrance portion, an intermediate portion and an exit portion. At least a portion of the internal nozzle section is adapted to be received in the ou

An expanding device for expanding strand material into a wool-type product includes outer and internal nozzle sections. The outer nozzle section has an entrance portion, an intermediate portion and an exit portion. At least a portion of the internal nozzle section is adapted to be received in the outer nozzle section. It includes a main body portion and a needle portion extending from the main body portion. The main body and needle portions include a first inner passage through which strand material passes to be expanded into a wool-type product. The needle and main body portions define with inner surfaces of the entrance and intermediate portions of the outer nozzle section an inner chamber. The main body portion has at least two bores extending through the main body portion which receive gas supplied by a gas stream source. The at least two bores communicate with the inner chamber and define a path for gas to travel to the inner chamber. The gas passes into the inner chamber and causes the strand material to move through the first passage. The gas also effects expansion of the strand material into a wool-type product.

대표청구항 ▼

[ What is claimed is:] [25.] A process for expanding strand material into a wool-type product comprising:providing a device for expanding strand material into a wool-type product comprising an outer nozzle section having an entrance portion, an intermediate portion and an exit portion; and an intern

[ What is claimed is:] [25.] A process for expanding strand material into a wool-type product comprising:providing a device for expanding strand material into a wool-type product comprising an outer nozzle section having an entrance portion, an intermediate portion and an exit portion; and an internal nozzle section adapted to be received in said outer nozzle section and including a main body portion and a needle portion extending from said main body portion, said main body and needle portions including a first inner passage through which strand material passes to be expanded into a wool-type product, said needle and main body portions defining with inner surfaces of said entrance and intermediate portions of said outer nozzle section an inner chamber, said main body portion having at least two bores extending through said main body portion which are adapted to receive gas, said at least two bores communicate with said inner chamber and define a path for gas to travel to said inner chamber; andsupplying pressurized gas to said at least two bores such that said pressurized gas passes into said inner chamber and causes said strand material to move through said first inner passage, said pressurized gas also effecting expansion of said strand material into a wool-type product.