Typewriting machines – Sheet or web – For feeding sheet from stack or pack holder
Patent
1980-06-24
1982-07-20
Sewell, Paul T.
Typewriting machines
Sheet or web
For feeding sheet from stack or pack holder
271 3, 400629, B41J 1158
Patent
active
043403140
ABSTRACT:
A compact substantially self contained envelope feeding apparatus includes a magazine for holding a plurality of stacked envelopes which are dispensed through a bottom outlet by a two stage dispensing mechanism comprising spaced apart sets of drive rollers arranged along an envelope feed path. The second set of drive rollers includes resiliently biased idler rollers for guiding the envelopes along a curved portion of the feed path to a holding plate which holds each envelope momentarily stationary for engagement by endless feed belts which feed the envelope to a platen of a printer. A support unit is provided with quick release clamps for securing the feeding apparatus to the support shaft of the printer platen. Drive gearing is provided for engagement with a platen gear to drive the feed belts in timed relation to the platen for feeding envelopes to the platen and returning envelopes from the platen back to the magazine. A control circuit includes a photosensor for timing the operation of the dispensing mechanism relative to the position of envelope engaging lugs on the feed belts, and a photosensor for signalling a jammed or out of paper condition.
REFERENCES:
patent: 1017134 (1912-02-01), Carter
patent: 1135140 (1915-04-01), Roberts
patent: 1182052 (1916-05-01), Stocking et al.
patent: 2242268 (1941-05-01), Sherman
patent: 2282411 (1942-05-01), Sundstrand
patent: 2896946 (1959-07-01), Barratt et al.
patent: 3430748 (1969-03-01), Parri
patent: 3586312 (1971-06-01), Sammons
patent: 4067566 (1978-01-01), Williams
patent: 4082595 (1978-04-01), Slater
patent: 4143981 (1979-03-01), Hansen et al.
patent: 4222557 (1980-09-01), Wu
patent: 4275969 (1981-06-01), Matsuhisa et al.
Datamarc, Inc.
Sewell Paul T.
LandOfFree
Envelope feeding apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Envelope feeding apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Envelope feeding apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-248123