Patent US3831501A successfully refreshed from Google Patents.
US3831501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet plicating device
Assignee: Eastman Kodak Co
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Filing: 1973-07-16
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Granted: 1974-08-27
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Expires: 1993-07-16
Abstract
Abstract Plicating device or jet for receiving a material in continuous, band, ribbon or sheet-like form, uniformly plicating and compacting the material into a shape of relatively low crosssectional area, and presenting the plicated and compacted material through an exit for further processing. The jet folds and condenses the material so that the axis of the fold is generally parallel to the direction of travel of the material. The position and amplitude of each fold as well as the degree of compacting is highly controlled. The device is formed to provide a slot-like band inlet communicating with a venturi connected to a gas inlet to transport the band to a folding cavity having nested vanes around which the band is plicated along its direction of travel.
Inventors
- 👤 R Bevington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:53
CPC Classifications
A; A24; A24D; A24D3/00; A24D3/02; A24D3/0229; A24D3/0233; B; B31; B31F; B31F1/00; B31F1/20; B31F1/22
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
197 words
A band plicating device comprising a housing having upper, lower and side wall means defining a folding cavity, said wall means further providing a band feeding slot opening into one end of said cavity, a plicated band outlet exiting from the other end, and a gas inlet communicating with said slot, the ratio of height to width of said outlet being greater than that of said slot, a plurality of upper vanes spaced across said cavity and supported by said upper wall means, said vanes extending generally toward said band outlet from a point adjacent the junction of said feeding slot and said cavity and extending downwardly into said cavity to a point spaced from said lower wall means, a plurality of lower vanes spaced across said cavity and supported by said lower wall means, said lower vanes extending generally toward said band outlet from a point adjacent the junction of said feeding slot and said cavity and extending upwardly into said cavity to a point spaced from said upper wall means, said upper and lower vanes being spaced from and projecting between each other to give an undulated configuration to said cavity along its transverse axis.
Claim 2
Dependent Claim
197 words
A band plicating device comprising a housing having upper, lower and side wall means defining a folding cavity, said wall means further providing a band feeding slot opening into one end of said cavity, a plicated band outlet exiting from the other end, and a gas inlet communicating with said slot, the ratio of height to width of said outlet being greater than that of said slot, a plurality of upper vanes spaced across said cavity and supported by said upper wall means, said vanes extending generally toward said band outlet from a point adjacent the junction of said feeding slot and said cavity and extending downwardly into said cavity to a point spaced from said lower wall means, a plurality of lower vanes spaced across said cavity and supported by said lower wall means, said lower vanes extending generally toward said band outlet from a point adjacent the junction of said feeding slot and said cavity and extending upwardly into said cavity to a point spaced from said upper wall means, said upper and lower vanes being spaced from and projecting between each other to give an undulated configuration to said cavity along its transverse axis.
Claim 3
Dependent Claim
18 words
The device of claim 1 wherein said feeding slot extends substantially across the full width of said cavity.
Claim 4
Dependent Claim
25 words
The device of claim 1 wherein said upper and lower vanes project into said cavity substantially normally to the transverse axis of said feeding slot.
Claim 5
Dependent Claim
30 words
The device of claim 1 wherein the depth of said upper and lower vanes increases over at least a substantial portion of their length from said point adjacent said juction.
Claim 6
Dependent Claim
65 words
The device of claim 1 wherein the forward portion of at least one of said upper and lower wall means is formed to provide said gas inlet which communicates directly with said slot substantially along the entire width of said slot, and is oriented relative to said slot and said folding cavity to direct gas into said slot in the general direction of said cavity.
Claim 7
Dependent Claim
15 words
The device of claim 1 wherein the longitudinal axes of said ridges converge downstream thereof.
Claim 8
Dependent Claim
30 words
The device of claim 1 wherein said side wall means converge from points approximately adjacent the transverse ends of said band feeding slot to the sides of said band outlet.
Claim 9
Dependent Claim
25 words
The device of claim 2 wherein said upper and lower vanes project into said cavity substantially normally to the transverse axis of said feeding slot.
Claim 10
Dependent Claim
30 words
The device of claim 8 wherein the depth of said upper and lower vanes increases over at least a substantial portion of their length from said point adjacent said junction.
Claim 11
Dependent Claim
65 words
The device of claim 9 wherein the forward portion of at least one of said upper and lower wall means is formed to provide said gas inlet which communicates directly with said slot substantially along the entire width of said slot, and is oriented relative to said slot and said foldIng cavity to direct gas into said slot in the general direction of said cavity.
Claim 12
Dependent Claim
15 words
The device of claim 10 wherein the longitudinal axes of said vanes converge downstream thereof.
Claim 13
Dependent Claim
30 words
The device of claim 11 wherein said side wall means converge from points approximately adjacent the transverse ends of said band feeding slot to the sides of said band outlet.
Claim 14
Dependent Claim
22 words
The device of claim 4 wherein the forward ends of said upper and lower vanes are tangential to their supporting wall means.
Claim 15
Dependent Claim
12 words
The device of claim 1 wherein said band outlet is substantially round.
Claim 16
Dependent Claim
30 words
The device of claim 1 wherein said wall means are formed to provide a baffled plenum chamber for distributing gas substantially uniformly to said slot across substantially its full width.
Claim 17
Dependent Claim
24 words
The device of claim 1 assembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
Claim 18
Dependent Claim
24 words
The device of claim 8 assembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
Claim 19
Dependent Claim
24 words
The device of claim 9 assembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
Claim 20
Dependent Claim
24 words
The device of claim 10 assembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
Claim 21
Dependent Claim
24 words
The device of claim 11 asembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
Claim 22
Dependent Claim
24 words
The device of claim 12 assembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
Claim 23
Dependent Claim
24 words
The device of claim 15 assembled on a filter rod making machine with the outlet of the device adjacent the tongue of the garniture.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |