Patent US3652084A successfully refreshed from Google Patents.
US3652084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating a stack of flat articles into single articles
Assignee: Ferag Fehr and Reist AG
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Filing: 1970-04-20
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Granted: 1972-03-28
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Expires: 1990-04-20
Abstract
Abstract An apparatus for removing articles one-by-one from a stack comprises a rotating table on which the stack is placed, the stack being held still. The table is formed with an opening through which the lowermost article in the stack passes on each revolution of the stack. The stack covers the axis of rotation of the table and the opening is specially shaped with a central hole connected by a generally radial slit to a part annular slit, the radial slit extending outwardly of the part annular slit to pass the article through the opening.
Inventors
- 👤 Jurg Eberle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:56
CPC Classifications
B; B65; B65H; B65H3/00; B65H3/28
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
191 words
Apparatus for separating single flat articles from a stack of such articles which comprises a table having an upper side for supporting said stack in a predetermined position thereon and a lower side, said table being rotatable about an axis under a supported stack and being provided with an opening leading from said upper side to said lower side and of a contour which embraces said axis and intersects the base outline of the supported stack in at least two points regardless of the rotational position of the table relative to the stack; a leading edge on said table at the periphery of said opening for releasing an edge of the lowermost article in said stack; gripping means for introducing a side edge of the lowermost article in said stack into said opening in the table from the upper side thereof when said leading edge is approaching the base outline of said stack; drive means engaging said table to rotate the table about said axis; and holder means for positioning said stack in said predetermined position on said table and for preventing rotation of said stack while the table is rotating.
Claim 2
Dependent Claim
191 words
Apparatus for separating single flat articles from a stack of such articles which comprises a table having an upper side for supporting said stack in a predetermined position thereon and a lower side, said table being rotatable about an axis under a supported stack and being provided with an opening leading from said upper side to said lower side and of a contour which embraces said axis and intersects the base outline of the supported stack in at least two points regardless of the rotational position of the table relative to the stack; a leading edge on said table at the periphery of said opening for releasing an edge of the lowermost article in said stack; gripping means for introducing a side edge of the lowermost article in said stack into said opening in the table from the upper side thereof when said leading edge is approaching the base outline of said stack; drive means engaging said table to rotate the table about said axis; and holder means for positioning said stack in said predetermined position on said table and for preventing rotation of said stack while the table is rotating.
Claim 3
Dependent Claim
46 words
Apparatus as claimed in claim 1, wherein the opening is in the form of a central hole which is concentrically surrounded by a ring-sector slit, there being a connecting slit which extends from the hole through the end of the ring-sector slit and radially outwards therefrom.
Claim 4
Dependent Claim
26 words
Apparatus as claimed in claim 1, wherein the base outline of the stack on the side towards the table lies within the periphery of the table.
Claim 5
Dependent Claim
51 words
Apparatus as claimed in claim 1, wherein said gripping means is a blade pivotally linked to the table at the periphery of the opening, the blade being elastically pretensioned toward the stack supporting side of the table and being adapted to guide the respective article to be separated into the opening.
Claim 6
Dependent Claim
42 words
Apparatus as claimed in claim 1, wherein said gripping means is a disconnectable gripping device arranged on the side of the table away from the side supporting the stack so that the gripping device can be made to project through the opening.
Claim 7
Dependent Claim
25 words
Apparatus as claimed in claim 5, wherein the gripping device includes a finger adapted to guide the respective article to be separated into the opening.
Claim 8
Dependent Claim
15 words
Apparatus as claimed in claim 5, wherein the disconnectable gripping device is a suction device.
Claim 9
Dependent Claim
36 words
Apparatus as claimed in claim 1, wherein the table is in the form of a disc within a rim which is supported and centered by rollers and with which the drive means of the table engages.
References Cited (Backward Citations)
US2731271A
Cited
US3109642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |