Envelope drying machine

Details Envelope drying machine Envelope drying machine

1975-07-31

1978-11-28

O'Dea, William F.

Drying and gas or vapor contact with solids

Apparatus

Rotary drums or receptacles

34187, 93 74, 271187, F26B 1508

Patent

active

041269489

ABSTRACT:
This apparatus is used for drying the gummed flaps of envelopes and includes a drying wheel that rotates within an embracing plenum chamber from which hot air is directed across envelopes carried by the wheel. The wheel includes spaced discs having slots into which the envelopes are guided and held during the drying process, and from which the envelopes are discharged following drying. The slots are of a configuration to apply pressure to the envelopes and thereby ensure that they are retained within the slots against the action of centrifugal forces.

REFERENCES:
patent: 212634 (1879-02-01), Swift
patent: 1426095 (1922-08-01), Parker
patent: 1830287 (1931-11-01), Ohlin
patent: 2140112 (1938-12-01), Novick
patent: 2709951 (1955-06-01), Skow
patent: 3162438 (1964-12-01), Perry, Jr.
patent: 3409290 (1968-11-01), Bergland
patent: 3537362 (1970-11-01), Harper
patent: 3847384 (1974-11-01), Bethke

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