Apparatus for expelling gases from liquid adhesives

Details Apparatus for expelling gases from liquid adhesives Apparatus for expelling gases from liquid adhesives

1977-06-07

1978-09-19

Spear, Jr., Frank A.

Gas separation

Means within gas stream for conducting concentrate to collector

55206, 118603, 118610, B01D 1900

Patent

active

041150856

ABSTRACT:
Apparatus for expelling gas bubbles from liquid adhesive which is conveyed through a conduit connecting an adhesive-containing vessel with a nozzle which applies adhesive to the running web of wrapping material in a tobacco or filter material processing machine. The conduit has a first section which contains a large-capacity pump and discharges adhesive into the enlarged portion of an annular channel defined by the cylinder and core of a gas evacuating device. The enlarged portion is followed by a second portion of smaller cross-sectional area which communicates with a radially inwardly extending gap of the core to admit some adhesive and the gases into a passage serving to return the gases and escaping adhesive to the vessel. A second section of the conduit contains a smaller-capacity pump and serves to feed degasified adhesive from the second portion of the channel to the nozzle.

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