US3784191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Convertible power stacker
Assignee: Bell and Howell Co
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Filing: 1972-03-16
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Granted: 1974-01-08
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Expires: 1992-03-16
Abstract
Abstract A document stacker at the exit of a processing device for business or other forms which accommodates automatic sequential vertical stacking of the forms, and is readily convertible to conventionally and horizontally stack larger size documents. Power stacking means are provided during the vertical stacker mode of operation of the invention to drive the lower edge of each form into the stack.
Inventors
- 👤 J Thiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:57
CPC Classifications
B; B65; B65H; B65H31/00; B65H31/04; B65H31/06; B65H29/00; B65H29/20; B65H29/22; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4214; B65H2301/42142
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
146 words
In an apparaus for stacking forms: stop means engageable by the leading edge of each form; drive means for advancing the forms vertically and successively toward contact with said stop means; means porviding a surface for stacking said forms in side-byside relation; and guide means selectively movable from a first inoperative position at which engagement with said forms is avoided to a second operative position in the path of travel of forms advancing from said drive means at which engagement with said forms is effected, whereby said forms contact said stop means and are fed to said stacking surface in a vertical position when said selectively movable guide means is in its first inoperative position and said forms are deflected away from said stop means and are fed to said stacking surface in a horizontal position when said guide means is in its second operative position.
Claim 2
Dependent Claim
146 words
In an apparaus for stacking forms: stop means engageable by the leading edge of each form; drive means for advancing the forms vertically and successively toward contact with said stop means; means porviding a surface for stacking said forms in side-byside relation; and guide means selectively movable from a first inoperative position at which engagement with said forms is avoided to a second operative position in the path of travel of forms advancing from said drive means at which engagement with said forms is effected, whereby said forms contact said stop means and are fed to said stacking surface in a vertical position when said selectively movable guide means is in its first inoperative position and said forms are deflected away from said stop means and are fed to said stacking surface in a horizontal position when said guide means is in its second operative position.
Claim 3
Dependent Claim
45 words
The apparatus of claim 1 wherein said drive means includes opposed oppositely driven roller means for successively engaging each form wherein one of said rollers drives the lower edge of each form downwardly into said stack when said guide means is in said first position.
Claim 4
Dependent Claim
82 words
The apparatus of claim 1 wherein: said drive means includes a first pair of opposed oppositely driven roller means for successively engaging and advancing each form and second roller means spacially disposed from said first roller means; and said guide means includes third roller means tangentially engageable with said second roller means when said guide means are in said second position whereby said second and third roller means successively engage said forms as they advance from said first pair of roller means.
Claim 5
Dependent Claim
57 words
The apparatus of claim 2 including: a variable positionable upright assembly means slidably attached to said surface for receiving and stacking said forms after said forms engage said stop means; spring means yieldably forcing said upright assembly toward said roller means whereby said forms are maintained in a stack between said upright assembly and said roller means.
Claim 6
Dependent Claim
37 words
The apparatus of claim 4 wherein said upright assembly means is alternately adapted to be fixedly positioned on said stacking surface for receiving forms advanced by said apparatus when said guide means is in said second position.
References Cited (Backward Citations)
US3325165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |