Patent EP0309797B1 successfully refreshed from Google Patents.
US4286907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grid extensions on a rotary stacker
Assignee: Gloucester Engineering Co Inc
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Filing: 1979-09-17
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Granted: 1981-09-01
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Expires: 1999-09-17
Abstract
Abstract A rotary stacker device for sequentially picking up and sequentially delivering plastic film products, onto mounting wickets. The rotary stacking device comprises a rotary hub upon which are mounted radially disposed work arms, with the arms having grid-like extension members for controllably positioning the film products during delivery and reducing air turbulence during the stacking process.
Inventors
- 👤 Philip J. Houle
- 👤 Robert G. Oliver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:37
CPC Classifications
B; B65; B65H; B65H29/00; B65H29/38; B65H29/40; 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: 8
Claim 1
Independent Claim
121 words
In a stacking machine for sequentially transporting plastic film workpieces to a product receiving station: (a) a pair of arms extending radially from an axis in a common plane and spaced along said axis to jointly define a quadrilateral working surface; (b) means for causing unitary rotation of said arms about said axis to rotate said working surface; (c) means for releasably securing ends of a workpiece to said arms for rotation therewith, to result in turbulence of the air ambient thereto; (d) and extension means secured to at least one of said arms to extend said working surface in the direction of said axis away from the other arm, so as to reduce the air turbulence resulting from said rotation.
Claim 2
Dependent Claim
121 words
In a stacking machine for sequentially transporting plastic film workpieces to a product receiving station: (a) a pair of arms extending radially from an axis in a common plane and spaced along said axis to jointly define a quadrilateral working surface; (b) means for causing unitary rotation of said arms about said axis to rotate said working surface; (c) means for releasably securing ends of a workpiece to said arms for rotation therewith, to result in turbulence of the air ambient thereto; (d) and extension means secured to at least one of said arms to extend said working surface in the direction of said axis away from the other arm, so as to reduce the air turbulence resulting from said rotation.
Claim 3
Dependent Claim
18 words
A machine according to claim 1 in which said extension means are secured to both of said arms.
Claim 4
Dependent Claim
36 words
A machine according to claim 1 including a plurality of pairs of said arms, extending from said axis in angularly spaced directions, and extension means secured to at least one of the arms of each pair.
Claim 5
Dependent Claim
21 words
A machine according to claim 3 in which said extension means are secured to both of the arms of each pair.
Claim 6
Dependent Claim
34 words
A machine according to claim 1 in which said extension means includes a plurality of spaced, substantially coplanar linear members extending away from said one arm in a direction generally parallel to said axis.
Claim 7
Dependent Claim
63 words
Means for reducing turbulence, in a stacking machine for plastic film workpieces in which the pieces are transported sequentially by radial arms rotated jointly about an axis and releasably secured to the ends of said pieces, said means comprising extension means secured to at least one of said arms and extending therefrom in the direction of said axis away from the other arm.
Claim 8
Dependent Claim
63 words
Means for reducing turbulence, in a stacking machine for plastic film workpieces in which the pieces are transported sequentially by radial arms rotated jointly about an axis and releasably secured to the ends of said pieces, said means comprising extension means secured to at least one of said arms and extending therefrom in the direction of said axis away from the other arm.
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) | 1984-08-31 | 1985-03-02 | 1985-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-31 | 1989-03-02 | 1989-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-31 | 1993-03-02 | 1993-09-01 | $7700.00 | Window Closed / Lapsed |