US3690645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating a stack of folded printed products or printed products bound at one side
Assignee: Ferag AG
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Filing: 1970-07-24
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Granted: 1972-09-12
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Expires: 1990-07-24
Abstract
Abstract An apparatus for separating a stack of individual sheets or folded and/or one-side bound printed products with the aid of a least one separation element suitable for initiating the separation operation and acting directly at the printed product to be separated. According to the invention, the separation element possesses a substantially lance-shaped constructed leading end portion driven to move in a plane substantially parallel to the printed products with respect to the stack thereof. This separation element is destined to engage with one so-called cut side edge portion of the printed product to be separated from the stack thereof or above such cut side edge of the printed product to be separated.
Inventors
- 👤 Walter Reist
- 👤 Hans Rudolf Kuratle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:47
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/28
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
180 words
Apparatus for separating a flat article, such as a folded printed article, from a stack of such articles comprising stack support means including at least one disc means rotatable under the stack, said disc means having an upper and lower side, said upper side at least partially supporting the stack, said disc means having at least one radially extending cut-out portion arranged for movement across the supported surface of the stack at each revolution of said disc means, separation element means rotatable about an axis intersecting said upper side of said disc means and arranged for movement in unison with said cut-out portion, said separation element means having a leading portion positioned above said upper side of said disc means and a trailing end portion extending below said lower side of said disc means, said leading portion and said trailing end portion of said separation element means being arranged to engage the lowermost article of the stack at a side edge thereof at each revolution immediately before said cut-out portion of said disc means moves across the supported stack surface.
Claim 2
Dependent Claim
180 words
Apparatus for separating a flat article, such as a folded printed article, from a stack of such articles comprising stack support means including at least one disc means rotatable under the stack, said disc means having an upper and lower side, said upper side at least partially supporting the stack, said disc means having at least one radially extending cut-out portion arranged for movement across the supported surface of the stack at each revolution of said disc means, separation element means rotatable about an axis intersecting said upper side of said disc means and arranged for movement in unison with said cut-out portion, said separation element means having a leading portion positioned above said upper side of said disc means and a trailing end portion extending below said lower side of said disc means, said leading portion and said trailing end portion of said separation element means being arranged to engage the lowermost article of the stack at a side edge thereof at each revolution immediately before said cut-out portion of said disc means moves across the supported stack surface.
Claim 3
Dependent Claim
34 words
Apparatus as defined in claim 1 further comprising a means for rotating said disc means and said separation element means, and abutment means for holding the stack in position and for preventing rotation thereof.
Claim 4
Dependent Claim
21 words
Apparatus as defined in claim 2 wherein said separation element means is mounted on said disc means for coaxial rotation therewith.
Claim 5
Dependent Claim
26 words
Apparatus as defined in claim 3 wherein said leading portion of said separation element means is tapered and said separation element means has a helicoid configuration.
Claim 6
Dependent Claim
26 words
Apparatus as defined in claim 3 further comprising means for adjustably positioning the height of said leading portion above said upper side of said disc means.
Claim 7
Dependent Claim
46 words
Apparatus as defined in claim 2 wherein the flat article is provided with at least one cut side edge and said leading portion of said separation element means is arranged for engagement with said cut side edge of the article to be separated from the stack.
Claim 8
Dependent Claim
47 words
Apparatus as defined in claim 2 wherein the flat article is provided with at least one cut side edge and said leading portion of said separation of element means being arranged for engagement above said cut side edge of the article to be separated from a stack.
Claim 9
Dependent Claim
85 words
Apparatus as defined in claim 2 wherein said stack support means comprises two disc means in the form of two synchronOusly and counter-rotatably driven rotary disc members, each of said members being arranged centrally symmetrical with respect to the axis of rotation thereof, each of said rotary disc members being provided with at least one radially extending cut-out portion and a respective separation element means associated with each of said cut-out portions, said rotary disc members being constructed as the mirror image of the other.
Claim 10
Dependent Claim
92 words
Apparatus as defined in claim 2 wherein said stack support means comprises a pair of rotatably driven disc members, each of said members being provided with a respective cutout portion, said disc members being synchronously driven in opposite directions of rotation, one of said disc members supporting said separation element means which is associated with said cut-out portion thereof, said cut-out portion of said disc member carrying said separation element means being positioned in front of said cut-out portion of said other disc member with respect to the direction of rotation thereof.
Claim 11
Dependent Claim
88 words
Apparatus as defined in claim 2 wherein said cut-out portion of said disc means is arranged in the region of said separation element means, said cut-out portion having a boundry edge, said rotatable disc means being provided at its surface in the region of said boundry edge with a recess which is positioned forwardly of said leading portion with respect to the direction of rotation of said disc means, and means defining suction openings communicating with said recess for subjecting said recess to a source of negative pressure.
Claim 12
Dependent Claim
40 words
Apparatus as defined in claim 8 wherein each of said disc members is provided with two cut-out portions and said separation element means is associated with each of said cut-out portions and mounted for coaxial rotation with said disc member.
Claim 13
Dependent Claim
40 words
Apparatus as defined in claim 8 wherein each of said disc members is provided with three cut-out portions and said separation element means is associated with each of said cut-out portions and mounted for coaxial rotation with said disc member.
References Cited (Backward Citations)
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Cited
US2797092A
Cited
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Cited
US3160293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |