US3921827A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arms for stacking machine
Assignee: FMC Corp
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Filing: 1974-04-10
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Granted: 1975-11-25
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Expires: 1994-04-10
Abstract
Abstract Arms are mounted on a rotary hub which is driven so that the arms take up bags newly made by a bag-making machine and deliver the bags in regular order for stacking in a basket or for delivery onto mounting wickets. The arms have two faces which can be positioned so that one of the faces selectively engages the newly-made bag. Which of the faces is employed is determined by whether the bags are to be stacked in baskets or wicketed. The rotary hub carrying the arms rotates adjacent a manifold which controls the vacuum supply to the arms. The manifold is connected by two pipes to the vacuum source to maintain vacuum supply through the manifold.
Inventors
- 👤 Richard L Joice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:34
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/26; B65H29/32; B31; B31B; B31B70/00; B31B70/74; B31B70/92; B31B70/98; B31B70/984; B65H2301/00; B65H2301/40; B65H2301/42; B65H2301/421; B65H2301/4212; B65H2404/00; B65H2404/60; B65H2404/65; B65H2404/655; B65H2404/6551; B65H2701/00; B65H2701/10; B65H2701/12; B65H2701/121; B65H2701/1212; B65H2701/19; B65H2701/191
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
121 words
In a stacking machine for picking up bags and moving them to the delivery position, the stacking machine having a central shaft upon which are mounted hub means for rotation about the axis of said shaft, first and second arms being mounted in said hub means, the improvement comprising: said first and second arms having a first working face with first vacuum holes therein, and said arms having a second working face with second vacuum holes therein, said second working face being angularly disposed with respect to said first working face, each of said arms being selectively positionable within its hub means so that said arms can carry either said first working face or said second working face in bag-engaging position.
Claim 2
Dependent Claim
121 words
In a stacking machine for picking up bags and moving them to the delivery position, the stacking machine having a central shaft upon which are mounted hub means for rotation about the axis of said shaft, first and second arms being mounted in said hub means, the improvement comprising: said first and second arms having a first working face with first vacuum holes therein, and said arms having a second working face with second vacuum holes therein, said second working face being angularly disposed with respect to said first working face, each of said arms being selectively positionable within its hub means so that said arms can carry either said first working face or said second working face in bag-engaging position.
Claim 3
Dependent Claim
49 words
The apparatus of claim 1 wherein said second working face is comprised of a plurality of fingers extending from said arm, said plurality of fingers each having a secoNd vacuum hole therein, said plurality of fingers being aligned so that several fingers can engage the edge of a bag.
Claim 4
Dependent Claim
62 words
The apparatus of claim 2 wherein said first arm is rotatably mounted in a first hub on a first axis substantially at right angles to the rotational axis of said hub, so that said arm can be rotated from a position wherein said first working face is in engagement position to a position where said second working face is in engagement position.
Claim 5
Dependent Claim
25 words
The apparatus of claim 3 wherein said first arm is hollow and wherein said first arm is connected through said first hub for vacuum connection.
Claim 6
Dependent Claim
38 words
The apparatus of claim 4 wherein said first hub faces a first manifold, said first manifold having an arcuate port therein for communication with said first arm, said arcuate port having a vacuum connection adjacent each end thereof.
Claim 7
Dependent Claim
25 words
The apparatus of claim 2 wherein said first arm is hollow and wherein said first arm is connected through said first hub for vacuum connection.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |