Filter manufacturing machine

Manufacturing container or tube from paper; or other manufacturi – Cigarette filter making

Reexamination Certificate

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Details

C493S042000, C493S044000

Reexamination Certificate

active

06908421

ABSTRACT:
A filter-manufacturing machine comprises spray nozzles located on both sides of a feeding path of sheet material made of filter fibers, respectively, and the spray nozzles each have a line of spray holes of a liquid binder with high viscosity and a plurality of air jetting openings for jetting compressed air. The liquid binder sprayed from the lines of the spray holes is subdivided into particles by the compressed air, thereby spraying the particles of the liquid binder evenly on both surfaces of the sheet material.

REFERENCES:
patent: 3741846 (1973-06-01), Greve
patent: 3744108 (1973-07-01), Greve
patent: 3774508 (1973-11-01), Berger et al.
patent: 3847064 (1974-11-01), Berger
patent: RE28487 (1975-07-01), Muller
patent: 3960645 (1976-06-01), Brackmann et al.
patent: 4179323 (1979-12-01), Sigmon
patent: 4281671 (1981-08-01), Bynre et al.
patent: 4537583 (1985-08-01), Pryor
patent: 4549875 (1985-10-01), Pryor
patent: 5163452 (1992-11-01), Marritt et al.
patent: 6-327455 (1994-11-01), None
patent: 7-203935 (1995-08-01), None
patent: 8-187073 (1996-07-01), None
patent: 20000-83642 (2000-03-01), None
patent: 2000-157247 (2000-06-01), None

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