US3790161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for individually feeding sheets, cards, banknotes and the like
Assignee: Arbman Development AB
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Filing: 1972-02-14
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Granted: 1974-02-05
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Expires: 1992-02-14
Abstract
Abstract An apparatus for feeding sheets, cards, banknotes and the like from a stack comprises a rotary roll which engages the lowermost sheet, card or banknote in the stack, a further roll spaced from and preferably slightly above the first roll, and a strip having a rough coating and so arranged between the two rolls as to extend inside a plane tangent to the peripheries of the rolls.
Inventors
- 👤 K Ericsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/46; B65H3/52; B65H3/5207; B65H3/523; B65H3/5238; B65H3/02; B65H3/06; B65H3/063; B65H2701/00; B65H2701/10; B65H2701/19; B65H2701/1912
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
274 words
An apparatus for individually feeding sheets, one at a time, to a delivery zone, which comprises a pair of feed rolls disposed in spaced apart relation and rotatably driven, said feed rolls having rough friction surfaces; a container adapted to hold a stack of sheets to be fed to the delivery zone, said container having an opening positioned to accommodate with-drawal of each successive lowermost sheet in the stack, said container being positioned to present said opening to the first of said feed rolls for contact of said lower-most sheet therewith whereby rotation of said first feed roll advances the lowermost sheet out of the container to the second feed roll, said second feed roll being operable to contact said sheet to advance same to including delivery zone; means disposed to support said container, said support means being adjustable from a position in which the lower-most is presented to said first feed roll for feeding sheets, to a withdrawn position away from said first feed roll; and a transverse strip of rough friction material positioned between said feed rolls and extending beyond a common plane tangent to said feed rolls, said transverse strip being disposed to exert frictional forces on the next overlying sheet in the container greater than the friction force between said next sheet and the sheet being fed to the delivery station to retain said next sheet in the container until the lowermost sheet being fed to the delivery zone has been completely withdrawn from the container; and guide means positioned in juxtaposition to said transverse strip and feed rolls to define a passage directing the sheets to the delivery zone.
Claim 2
Independent Claim
274 words
An apparatus for individually feeding sheets, one at a time, to a delivery zone, which comprises a pair of feed rolls disposed in spaced apart relation and rotatably driven, said feed rolls having rough friction surfaces; a container adapted to hold a stack of sheets to be fed to the delivery zone, said container having an opening positioned to accommodate with-drawal of each successive lowermost sheet in the stack, said container being positioned to present said opening to the first of said feed rolls for contact of said lower-most sheet therewith whereby rotation of said first feed roll advances the lowermost sheet out of the container to the second feed roll, said second feed roll being operable to contact said sheet to advance same to including delivery zone; means disposed to support said container, said support means being adjustable from a position in which the lower-most is presented to said first feed roll for feeding sheets, to a withdrawn position away from said first feed roll; and a transverse strip of rough friction material positioned between said feed rolls and extending beyond a common plane tangent to said feed rolls, said transverse strip being disposed to exert frictional forces on the next overlying sheet in the container greater than the friction force between said next sheet and the sheet being fed to the delivery station to retain said next sheet in the container until the lowermost sheet being fed to the delivery zone has been completely withdrawn from the container; and guide means positioned in juxtaposition to said transverse strip and feed rolls to define a passage directing the sheets to the delivery zone.
Claim 3
Dependent Claim
54 words
An apparatus according to claim 1 wherein said container has a bottom surface with a rough friction coating disposed to engage the lowermost sheet in the stack and including means disposed to press against the uppermost sheet in the stack to increase the friction force load on the lowermost sheet by said bottom coating.
Claim 4
Dependent Claim
57 words
An apparatus according to claim 1 including a plurality of containers each adapted to hold a stack of sheets to be fed to a corresponding delivery zone, said containers being arranged in spaced apart relation along the axial direction of said feed rolls and said transverse strip of rough frictional material being elongated along said axial direction.
Claim 5
Dependent Claim
23 words
An apparatus according to claim 1 including sensing means disposed for actuation by sheets advanced by said feed rolls to the delivery zone.
Claim 6
Dependent Claim
25 words
An apparatus according to claim 1 including means for rotatably driving said second feed roll at a higher peripheral speed than the first feed roll.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |