US4378938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Document stacking device
Assignee: Sweda International Inc
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Filing: 1981-05-26
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Granted: 1983-04-05
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Expires: 2001-05-26
Abstract
Abstract Document stacking device for tags or other documents, which device may comprise counter-rotating helical stacker members, is provided with a gripper mounted thereon for removing the documents from the stacker members. The hopper in which the stacking device stacks the documents is provided with laterally adjustable side walls to accommodate documents of different widths.
Inventors
- 👤 Tadeusz Staniszewski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:05
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/38; B65H29/42
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
A document stacking device for stacking documents comprising: a document stacker member mounted for rotation about an axis of rotation; and means for rotating said stacker member about said axis of rotation; said stacker member including a portion extending obliquely to said axis of rotation and effective upon rotation of said stacker member to move said documents along the direction of said axis of rotation; said stacking device including means for gripping said documents and moving them in a given direction away from said said stacker member; said given direction extending transversely to said axis of rotation; said gripping means being mounted on said stacker member and contacting said obliquely extending portion, whereby said documents are gripped between said gripping means and said obliquely extending portion.
Claim 2
Dependent Claim
126 words
A document stacking device for stacking documents comprising: a document stacker member mounted for rotation about an axis of rotation; and means for rotating said stacker member about said axis of rotation; said stacker member including a portion extending obliquely to said axis of rotation and effective upon rotation of said stacker member to move said documents along the direction of said axis of rotation; said stacking device including means for gripping said documents and moving them in a given direction away from said said stacker member; said given direction extending transversely to said axis of rotation; said gripping means being mounted on said stacker member and contacting said obliquely extending portion, whereby said documents are gripped between said gripping means and said obliquely extending portion.
Claim 3
Dependent Claim
13 words
The combination according to claim 1, wherein: said gripping means comprises brush means.
Claim 4
Dependent Claim
24 words
The combination according to claim 1, wherein: said stacker member is a helical member, said obliquely extending portion thereof comprising substantially a helix portion.
Claim 5
Dependent Claim
15 words
The combination according to claim 3, wherein: said stacker member comprises an open annular band.
Claim 6
Dependent Claim
22 words
The combination according to claim 4, wherein: said stacker member further comprises a bottom plate on which said annular band is mounted.
Claim 7
Dependent Claim
29 words
The combination according to claim 4, including: stationary guide means for guiding said documents for movement in said given direction; said guide means being surrounded by said annular band.
Claim 8
Dependent Claim
14 words
The combination according to claim 6, wherein: said guide means comprises a guide plate.
Claim 9
Dependent Claim
29 words
The combination according to claim 4, including: stationary support means adjacent said stacker member for preventing said documents from inadvertently falling under said helix portion of said stacker member.
Claim 10
Dependent Claim
20 words
The combination according to claim 8, wherein: said stationary support means comprises a sloping ramp disposed alongside said stacker member.
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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) | 1986-04-04 | 1986-10-04 | 1987-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-04-04 | 1990-10-04 | 1991-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-04-04 | 1994-10-04 | 1995-04-05 | $7700.00 | Window Closed / Lapsed |