US3748973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A depositing cylinder apparatus for collecting and withdrawing stacks of bags delivered by
Assignee: Windmoeller and Hoelscher KG
•
Filing: 1971-07-29
•
Granted: 1973-07-31
•
Expires: 1991-07-29
Abstract
Abstract In a bag-making machine where the bags are discharged by a cylinder and deposited on a substantially horizontal table disposed at the cylinder periphery, apparatus for collecting and withdrawing stacks of the deposited bags comprises gripping units effective to take successive stacks from the table and withdraw them from the cylinder and holding fingers for engaging the successive stacks, the holding fingers projecting upwardly through apertures in the table, being movable lengthwise of the table, being spring-influenced towards the cylinder, having their ends spaced from the cylinder periphery and being dimensioned so that they slide off each stack during initial withdrawal movement of the stack by one of the gripping units. Further but longer holding fingers are preferably adapted to slide off the stack during subsequent withdrawal movement of the stack.
Inventors
- 👤 H Kuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:11
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/54; B65H33/00; B65H33/16
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
161 words
An apparatus having a delivery cylinder of a bag making machine for delivering individual bags made thereby and an apparatus for receiving and withdrawing a predetermined number of said bags as a stack, said apparatus comprising a substantially horizontal table positioned at the periphery of said cylinder and adapted to receive said bags, said table having a plurality of apertures therein, gripping means adapted to grip successive stacks from said table and withdraw said stacks from said cylinder, and a plurality of spring-biased holding fingers having one end positioned below said table and the other end projecting upwardly through said apertures in said table and spaced from the periphery of said cylinder, said holding fingers being adapted to engage the successive stacks and being moveable in a direction away from said cylinder, said holding fingers being dimensioned such that they slide off of each of said stacks during the initial withdrawal of said stacks from said cylinder by said gripping means.
Claim 2
Independent Claim
161 words
An apparatus having a delivery cylinder of a bag making machine for delivering individual bags made thereby and an apparatus for receiving and withdrawing a predetermined number of said bags as a stack, said apparatus comprising a substantially horizontal table positioned at the periphery of said cylinder and adapted to receive said bags, said table having a plurality of apertures therein, gripping means adapted to grip successive stacks from said table and withdraw said stacks from said cylinder, and a plurality of spring-biased holding fingers having one end positioned below said table and the other end projecting upwardly through said apertures in said table and spaced from the periphery of said cylinder, said holding fingers being adapted to engage the successive stacks and being moveable in a direction away from said cylinder, said holding fingers being dimensioned such that they slide off of each of said stacks during the initial withdrawal of said stacks from said cylinder by said gripping means.
Claim 3
Dependent Claim
62 words
The apparatus of claim 1 in which at least one of said plurality of holding fingers has one end projecting upwardly through said apertures in said table to a point which is above the upper ends of the remaining of said holding fingers such that at least one of said holding fingers slides off of said stack after said remaining holding fingers.
Claim 4
Dependent Claim
50 words
The apparatus of claim 2 in which said holding fingers are leaf springs which have said one end attached at a point beneath said table and in which said other end of said holding fingers is bent such that said other end points in a direction away from said cylinder.
Claim 5
Dependent Claim
43 words
The apparatus of claim 1 in which said gripping means comprises first and second jaws adapted to grip a stack and in which said first jaw is moveable toward said second jaw in an oblique upward direction during the withdrawal of said stack.
Claim 6
Dependent Claim
19 words
The apparatus of claim 1 in which each of said gripping units is mounted on an intermittently moveable conveyor.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |