1975-10-20
1976-10-05
Wood, Jr., M. H.
Cutlery
F16C 3372
Patent
active
039841502
ABSTRACT:
An improved sealing apparatus for permitting the continuous passage of a web material through a gap in a wall separating two zones at different pressures while minimizing the flow of air from one zone to the other.
REFERENCES:
patent: 3638845 (1972-02-01), Herzhott et al.
patent: 3920287 (1975-11-01), Jamin
Church Gene A.
Imperial Chemical Industries Limited
Wood, Jr. M. H.
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