Compact envelope handling device

Claim 2

Envelope handling apparatus for feeding to and delivering from an operating station comprising: first hopper means for holding a stack of envelopes in an orientation transverse to that of said operating station; means for separating the topmost envelope in the stack; first means for pivoting the separated envelope 90° comprising a first restraint member in the feed direction acting as a pivot point, and an upwardly angled guide surface adjacent said first hopper for guiding the trailing edge, and a gate, operable in response to a feed signal developed by said operating station, adjacent said guide for restraining rotation about said pivot point; means for feeding the separated envelope past said operating station; second hopper means disposed directly over said first hopper; second means; positioned between said operating station and said second hopper means, for pivoting said envelope 90°, and means for conveying said envelope to said second hopper.

Claim 3

The apparatus of claim 1 wherein said second means for pivoting for said envelope 90° includes: means connected to said second hopper for providing a normal load; a notch in one upright wall of said second hopper, said notch being located beneath the means providing a normal load; a drive means located beneath said normal load providing means and spaced from the notched wall for engaging a point on one edge of an envelope, exiting said means for conveying to said second hopper, in the notch while the envelope is driven between said driving means and said normal load providing means, whereby continued operation of said driving means moves the envelope 90° about said point engaged in the notch.

Claim 5

Apparatus for feeding the topmost envelope in a stack of said envelopes in a first hopper past an operating station and delivering said envelope to a second hopper positioned directly above said first hopper, both said hoppers being arranged so that the envelopes are disposed perpendicularly to the orientation of the operating station including: restraint means adjacent said first hopper for restraining envelopes in the feed direction; means for driving said envelope counterclockwise about a point coincident with said restraint means; selectively operable gate means adjacent said first hopper; means located between said hoppers and the operating station for feeding envelopes to and from said operating station; stop means in the exit path adjacent the entry area of the second hopper; pivot means located at the entry to said second hopper; and second driving means for urging the envelope counterclockwise about said pivot means and into said second hopper.

Claim 6

Apparatus for feeding the topmost envelope in a stack of said envelopes in a first hopper past an operating station and delivering said envelope to a second hopper positioned directly above said first hopper, both said hoppers being arranged so that the envelopes are disposed perpendicularly to the orientation of the operating station including: restraint means adjacent said first hopper for restraining envelopes in the feed direction; means for driving said envelope counterclockwise about a point coincident with said restraint means; selectively operable gate means adjacent said first hopper; means located between said hoppers and the operating station for feeding envelopes to and from said operating station; stop means in the exit path adjacent the entry area of the second hopper; pivot means located at the entry to said second hopper; and second driving means for urging the envelope counterclockwise about said pivot means and into said second hopper.

Claim 7

The apparatus of claim 4 wherein said second driving means is an elastomeric paddle wheel cooperatively associated with a backup plate formed integrally with said second hopper.

Claim 9

For use in combination with a device for feeding and delivering cut sheets, apparatus for delivering to and from a print station envelopes kept at an orientation transverse to that of the print direction, said apparatus being positioned adjacent to said cut sheet handling device and including: means for storing fresh envelopes; means for stacking printed envelopes; an envelope transport path connecting said storing means said print station and said stacking means; means cooperating with said storing means for causing an envelope to rotate a quarter turn as it exits said storing means and enters said transport path; and means located adjacent said stacking means for engaging a printed envelope as it exits said transport path and causing it to rotate a quarter turn as it enters said stacking means.

Claim 10

For use in combination with a device for feeding and delivering cut sheets, apparatus for delivering to and from a print station envelopes kept at an orientation transverse to that of the print direction, said apparatus being positioned adjacent to said cut sheet handling device and including: means for storing fresh envelopes; means for stacking printed envelopes; an envelope transport path connecting said storing means said print station and said stacking means; means cooperating with said storing means for causing an envelope to rotate a quarter turn as it exits said storing means and enters said transport path; and means located adjacent said stacking means for engaging a printed envelope as it exits said transport path and causing it to rotate a quarter turn as it enters said stacking means.