Envelope opener

Details Envelope opener Envelope opener

1977-08-22

1979-03-06

Meister, J. M.

Cutting

Processes

With subsequent handling

83 35, 83 61, 83 63, 83 71, 83256, 83262, 83912, B43M 702

Patent

active

041424301

ABSTRACT:
An envelope opener comprising first, second and third shear stations for shearing three edges of an envelope in sequence one edge at a time. Each shear station sequentially aligns the envelope by contacting the edge to be sheared, shears the contacted edge, and then releases the envelope. A microcomputer monitors the advance of the envelope through and between the shear stations and causes the shear stations to cyclically align, shear and release the envelope. A peel back station downstream of the shear station peels back a panel of the envelope to expose the contents thereof. If an envelope is jammed at or between any of the stations, the microcomputer actuates a display to indicate a jam condition. The microcomputer also shuts off power to the opener to prevent damage to the envelope.

REFERENCES:
patent: 3116718 (1964-01-01), Krupotich
patent: 3143100 (1964-08-01), Krupotich
patent: 3238926 (1966-03-01), Huck
patent: 3301116 (1967-01-01), Owen
patent: 3822523 (1974-07-01), Russell

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