Patent US3661680A successfully refreshed from Google Patents.
US3661680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for successively forming disposable diapers
Assignee: Riegel Textile Corp
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Filing: 1970-03-09
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Granted: 1972-05-09
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Expires: 1990-03-09
Abstract
Abstract An apparatus for successively forming disposable diapers including means for supplying an elongate moisture absorbent pad and for feeding it along a predetermined longitudinal path of travel, means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad and means for supplying and positioning an elongate backing sheet in superimposed relation to the other side of the pad. Means are provided for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, while additional means cooperate therewith for longitudinally sealing the side portions of the superimposed components, for transversely sealing the superimposed components at predetermined longitudinally spaced intervals to form successively interconnected diapers and for severing the same along successive transverse seals to form individual diapers.
Inventors
- 👤 Graves T Gore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:09
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/26; A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/15617; A61F13/15634; D21H27/00; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1734
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
280 words
An apparatus for successively forming disposable diapers wherein the diaper includes a fluid permeable front cover sheet, a moisture absorbent pad superimposed on the front cover sheet and a backing sheet superimposed on the other side of the pad and secured to the front cover sheet along longitudinal and transverse edges thereof, said apparatus comprising means for supplying an elongate moisture absorbent pad comprising a batt of fibrous material and for feeding it along a substantially predetermined longitudinal path of travel, suction means for removing transverse segments of the batt of fibrous material at predetermined longitudinally spaced intervals, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad, means cooperating with said pad supplying and feeding means for supplying and positioning a backing sheet in superimposed relation to the other side of the pad, means cooperating with said pad, front cover sheet and backing sheet supplying, positioning and feeding means for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, means cooperating with said receiving and feeding means for longitudinally sealing the side portions of the front cover sheet, pad and backing sheet in superimposed relation, means cooperating with said receiving and feeding means for transversely sealing the front cover sheet, pad and backing sheet in superimposed relation at predetermined longitudinally spaced intervals in registry with the removed transverse segments of the fibrous batt to form successively interconnected diapers, and means cooperating with said transverse sealing means for severing the successively interconnected diapers along successive transverse seals to form individual diapers.
Claim 2
Independent Claim
280 words
An apparatus for successively forming disposable diapers wherein the diaper includes a fluid permeable front cover sheet, a moisture absorbent pad superimposed on the front cover sheet and a backing sheet superimposed on the other side of the pad and secured to the front cover sheet along longitudinal and transverse edges thereof, said apparatus comprising means for supplying an elongate moisture absorbent pad comprising a batt of fibrous material and for feeding it along a substantially predetermined longitudinal path of travel, suction means for removing transverse segments of the batt of fibrous material at predetermined longitudinally spaced intervals, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad, means cooperating with said pad supplying and feeding means for supplying and positioning a backing sheet in superimposed relation to the other side of the pad, means cooperating with said pad, front cover sheet and backing sheet supplying, positioning and feeding means for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, means cooperating with said receiving and feeding means for longitudinally sealing the side portions of the front cover sheet, pad and backing sheet in superimposed relation, means cooperating with said receiving and feeding means for transversely sealing the front cover sheet, pad and backing sheet in superimposed relation at predetermined longitudinally spaced intervals in registry with the removed transverse segments of the fibrous batt to form successively interconnected diapers, and means cooperating with said transverse sealing means for severing the successively interconnected diapers along successive transverse seals to form individual diapers.
Claim 3
Dependent Claim
123 words
An apparatus, as set forth in claim 1, wherein said pad supplying and feeding means comprises means for supplying at least one elongate moisture absorbent sheet and feeding it along a substantially predetermined longitudinal path of travel, means for supplying an elongate web of moisture absorbent fibrous material and feeding it along a substantially predetermined path of travel, a fiberizing chamber disposed in the path of the fibrous web for receiving and fiberizing the web into generally individual fibers, and means including suction means communicating with said fiberizing chamber for withdrawing the fiberized fibers therefrom and depositing the fibers in superimposed batt form on a longitudinally extending central portion of the at least one moisture absorbent sheet to form the moisture absorbent pad.
Claim 4
Dependent Claim
40 words
An apparatus as set forth in claim 2, where in said pad supplyinG and feeding means includes means for supplying an additional elongate moisture absorbent sheet and positioning it in superimposed relation to the other side of the fiber batt.
Claim 5
Dependent Claim
45 words
An apparatus as set forth in claim 3, including severing means for trimming superimposed longitudinal side portions from the moisture absorbent sheets, and means for positioning the trimmed side portions in a superimposed, generally centrally located relation to the moisture absorbent sheets and fiber batt.
Claim 6
Dependent Claim
52 words
An apparatus as set forth in claim 1, including means cooperating with said front cover sheet supplying and positioning means for applying adhesive to the side of the front cover sheet that is positioned in superimposed relation to the pad to facilitate the securement of the front cover sheet to the pad.
Claim 7
Dependent Claim
73 words
An apparatus, as set forth in claim 1, wherein the backing sheet has a width in excess of the width of the moisture absorbent pad and front cover sheet and wherein said apparatus further includes a folding means cooperating with said receiving and feeding means for folding opposite longitudinal side portions of the backing sheet around longitudinal side edges of the pad and front cover sheet for securing by said longitudinal sealing means.
Claim 8
Dependent Claim
79 words
An apparatus, as set forth in claim 6, wherein said longitudinal sealing means comprises means for applying adhesive to opposite marginal longitudinal side portions of the front cover sheet prior to folding of opposite longitudinal side portions of the backing sheet in overlapping relation to the marginal side portions of the front cover sheet, and means for compressing the overlapping side portions of the front cover sheet and backing sheet together to facilitate the securement thereof by the adhesive.
Claim 9
Dependent Claim
62 words
An apparatus, as set forth in claim 1, wherein said transverse sealing means comprises embossing means disposed adjacent the predetermined path of travel of the superimposed front cover sheet, pad and backing sheet and being operative in timed relationship with said receiving and feeding means for transversely embossing the superimposed front cover sheet, pad and backing sheet at predetermined longitudinally spaced intervals.
Claim 10
Dependent Claim
36 words
An apparatus, as set forth in claim 8 wherein said severing means includes means cooperating with said embossing means for performing the superimposed front cover sheet, pad and backing sheet transversely thereof along successive transverse seals.
Claim 11
Dependent Claim
63 words
An apparatus, as set forth in claim 1, including means for folding opposite longitudinal side portions of the successively interconnected diapers inwardly over the central portion of same along first longitudinally extending fold lines and outer sections of the side portions outwardly back over inner sections of the side portions along second longitudinally extending fold lines to form a generally box pleat configuration.
Claim 12
Dependent Claim
84 words
An apparatus, as set forth in claim 10, wherein said last named folding means comprises means for folding opposite longitudinal side portions of the successively interconnected diapers along first longitudinally extending fold lines to extend substantially perpendicular to the central portion of same, and means for inwardly folding the opposite longitudinal side portions along second longitudinally extending fold lines positioned intermediate the first fold lines and side edges of same with the outer sections of said portions overlapping inner sections of the side portions.
Claim 13
Dependent Claim
109 words
An apparatus, as set forth in claim 10, wherein said severing means comprises means cooperating with said transverse sealing means for perforating the superimposed front cover sheet, pad and backing sheet transversely thereof along successive transverse seals, and conveyor means positioned in receiving relation to said feeding means and folding means for receiving the successively interconnected diapers from said feeding means after folding thereof by said last named folding means and feeding same alonG a predetermined path of travel, said conveyor means advancing the same at a faster rate than said feeding means so as to separate the successively interconnected diapers along successive transverse perforations to form individual diapers.
Claim 14
Dependent Claim
63 words
An apparatus, as set forth in claim 12, wherein said conveyor means comprises a pair of superimposed cooperating continuous conveyors, said conveyors being disposed adjacent said feeding means for receiving the successively interconnected diapers therebetween, and including means cooperating with said feeding means and cooperating conveyors for transversely folding the same intermediate adjacent transverse seals and for transferring same to said cooperating conveyors.
Claim 15
Dependent Claim
31 words
An apparatus, as set forth in claim 13, including accumulating means disposed adjacent said cooperating conveyors for successively receiving the individual folded diapers therefrom and for positioning same in side-by-side relation.
Claim 16
Dependent Claim
72 words
An apparatus, as set forth in claim 14, wherein said accumulating means comprises an accumulating box having an accumulating portion and a receiving portion, said receiving portion being disposed adjacent said cooperating conveyors for successively receiving the individual folded diapers therefrom, and means for successively transferring the individual folded diapers from said receiving portion to said accumulating portion of said accumulating box and positioning same in said accumulating portion in side-by-side relation.
Claim 17
Dependent Claim
26 words
An apparatus, as set forth in claim 14, including means operatively associated with said accumulating means for selectively ejecting a folded diaper from said accumulating means.
Claim 18
Independent Claim
426 words
An apparatus for successively forming disposable diapers wherein the diaper includes a fluid permeable front cover sheet, a moisture absorbent pad superimposed on the front cover sheet, and a backing sheet superimposed on the other side of the pad and secured to the front cover sheet along longitudinal and transverse edges thereof, said apparatus comprising means for supplying an elongate moisture absorbent pad and for feeding it along a substantially predetermined longitudinal path of travel, said means comprising means for supplying at least one elongate moisture absorbent sheet and feeding it along a substantially predetermined longitudinal path of travel, means for supplying an elongate web of moisture absorbent fibrous material and feeding it along a substantially predetermined path of travel, a fiberizing chamber disposed in the path of the fibrous web for receiving and fiberizing the web into generally individual fibers, means including suction means communicating with said fiberizing chamber for withdrawing the fiberized fibers therefrom and depositing the fibers in superimposed batt form on a longitudinally extending central portion of the at least one moisture absorbent sheet, additional suction means disposed adjacent the path of the at least one moisture absorbent sheet and superimposed fiber batt for removing transverse segments of the fiber batt at predetermined longitudinally spaced intervals, means for supplying an additional elongate moisture absorbent sheet and positioning it in superimposed relation to the other side of the fiber batt to form the moisture absorbent pad, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate backing sheet in superimposed relation to the other side of the pad, means cooperating with said pad, front cover sheet and backing sheet supplying, positioning and feeding means for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, means cooperating with said receiving and feeding means for longitudinaLly sealing the side portions of the front cover sheet, pad and backing sheet in superimposed relation, means cooperating with said receiving and feeding means and additional suction means for transversely sealing the front cover sheet, pad and backing sheet in superimposed relation at predetermined longitudinal spaced intervals in registry with the removed transverse segments of the fiber batt to form successively interconnected diapers, and means cooperating with said transverse sealing means for severing the successively interconnected diapers along successive transverse seals to form individual diapers.
Claim 19
Independent Claim
426 words
An apparatus for successively forming disposable diapers wherein the diaper includes a fluid permeable front cover sheet, a moisture absorbent pad superimposed on the front cover sheet, and a backing sheet superimposed on the other side of the pad and secured to the front cover sheet along longitudinal and transverse edges thereof, said apparatus comprising means for supplying an elongate moisture absorbent pad and for feeding it along a substantially predetermined longitudinal path of travel, said means comprising means for supplying at least one elongate moisture absorbent sheet and feeding it along a substantially predetermined longitudinal path of travel, means for supplying an elongate web of moisture absorbent fibrous material and feeding it along a substantially predetermined path of travel, a fiberizing chamber disposed in the path of the fibrous web for receiving and fiberizing the web into generally individual fibers, means including suction means communicating with said fiberizing chamber for withdrawing the fiberized fibers therefrom and depositing the fibers in superimposed batt form on a longitudinally extending central portion of the at least one moisture absorbent sheet, additional suction means disposed adjacent the path of the at least one moisture absorbent sheet and superimposed fiber batt for removing transverse segments of the fiber batt at predetermined longitudinally spaced intervals, means for supplying an additional elongate moisture absorbent sheet and positioning it in superimposed relation to the other side of the fiber batt to form the moisture absorbent pad, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate backing sheet in superimposed relation to the other side of the pad, means cooperating with said pad, front cover sheet and backing sheet supplying, positioning and feeding means for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, means cooperating with said receiving and feeding means for longitudinaLly sealing the side portions of the front cover sheet, pad and backing sheet in superimposed relation, means cooperating with said receiving and feeding means and additional suction means for transversely sealing the front cover sheet, pad and backing sheet in superimposed relation at predetermined longitudinal spaced intervals in registry with the removed transverse segments of the fiber batt to form successively interconnected diapers, and means cooperating with said transverse sealing means for severing the successively interconnected diapers along successive transverse seals to form individual diapers.
Claim 20
Dependent Claim
188 words
An apparatus, as set forth in claim 17, wherein the backing sheet has a width in excess of the width of the pad and front cover sheet and wherein said apparatus further includes a folding means cooperating with said receiving and feeding means for folding opposite longitudinal side portions of the backing sheet around longitudinal edges of the pad and front cover sheet; and wherein said longitudinal sealing means comprises means for applying adhesive to opposite longitudinal side portions of the front cover sheet prior to folding of opposite side portions of the backing sheet in overlapping relation to the marginal side portions of the front cover sheet, and means for compressing the overlapping side portions of the front cover sheet and backing sheet together to facilitate the securement thereof by the adhesive; and wherein said transverse sealing means comprises embossing means disposed adjacent the predetermined path of travel of the superimposed front cover sheet, pad and backing sheet and being operative in timed relationship with said receiving and feeding means for transversely embossing the superimposed front cover sheet, pad and backing sheet at predetermined longitudinally spaced intervals.
Claim 21
Independent Claim
416 words
An apparatus for successively forming disposable diapers wherein the diaper includes a fluid permeable front cover sheet, a moisture absorbent pad superimposed on the front cover and a backing sheet superimposed on the other side of the pad and secured to the front cover sheet along longitudinal and transverse edges thereof, said apparatus comprising means for supplying an elongate moisture absorbent pad and for feeding it along a substantially predetermined longitudinal path of travel, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate backing sheet in superimposed relation to the other side of the pad, means cooperating with said pad, front cover sheet and backing sheet supplying, positioning and feeding means for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, means cooperating with said receiving and feeding means for longitudinally sealing the side portions of the front cover sheet, pad and backing sheet in superimposed relation, means cooperating with said receiving and feeding means for transversely sealing the front cover sheet, pad and backing sheet in superimposed relation at predetermined longitudinally spaced intervals to form successively interconnected diapers, means cooperating with said transverse sealing means for perforating the superimposed front cover sheet, pad and backing sheet transversely thereof along successive transverse seals, means cooperating with said receiving means and feeding means and transverse sealing means for folding opposite longitudinal side portions of the successively interconnected diapers inwardly over the central portion of same along first longitudinally extending fold lines and outer sections of the side portions outwardly back over inner sections of side portions along second longitudinally extending fold lines, a pair of superimposed coopeRating continuous conveyors disposed adjacent said feeding means and folding means for receiving the successively interconnected diapers therebetween and feeding same along a predetermined path of travel, said conveyor means advancing the same at a faster rate than said feeding means so as to separate the successively interconnected diapers along successive transverse seals, means cooperating with said receiving and feeding means and cooperating conveyors for transversely folding the successively interconnected diapers intermediate adjacent transverse seals and for transferring same to said cooperating conveyors, and accumulating means disposed adjacent said cooperating conveyors for successively receiving the individual folded diapers therefrom and for positioning same in side-by-side relation.
Claim 22
Independent Claim
416 words
An apparatus for successively forming disposable diapers wherein the diaper includes a fluid permeable front cover sheet, a moisture absorbent pad superimposed on the front cover and a backing sheet superimposed on the other side of the pad and secured to the front cover sheet along longitudinal and transverse edges thereof, said apparatus comprising means for supplying an elongate moisture absorbent pad and for feeding it along a substantially predetermined longitudinal path of travel, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate fluid permeable front cover sheet in superimposed relation to one side of the pad, means cooperating with said pad supplying and feeding means for supplying and positioning an elongate backing sheet in superimposed relation to the other side of the pad, means cooperating with said pad, front cover sheet and backing sheet supplying, positioning and feeding means for receiving and feeding the superimposed front cover sheet, pad and backing sheet along a predetermined longitudinal path of travel, means cooperating with said receiving and feeding means for longitudinally sealing the side portions of the front cover sheet, pad and backing sheet in superimposed relation, means cooperating with said receiving and feeding means for transversely sealing the front cover sheet, pad and backing sheet in superimposed relation at predetermined longitudinally spaced intervals to form successively interconnected diapers, means cooperating with said transverse sealing means for perforating the superimposed front cover sheet, pad and backing sheet transversely thereof along successive transverse seals, means cooperating with said receiving means and feeding means and transverse sealing means for folding opposite longitudinal side portions of the successively interconnected diapers inwardly over the central portion of same along first longitudinally extending fold lines and outer sections of the side portions outwardly back over inner sections of side portions along second longitudinally extending fold lines, a pair of superimposed coopeRating continuous conveyors disposed adjacent said feeding means and folding means for receiving the successively interconnected diapers therebetween and feeding same along a predetermined path of travel, said conveyor means advancing the same at a faster rate than said feeding means so as to separate the successively interconnected diapers along successive transverse seals, means cooperating with said receiving and feeding means and cooperating conveyors for transversely folding the successively interconnected diapers intermediate adjacent transverse seals and for transferring same to said cooperating conveyors, and accumulating means disposed adjacent said cooperating conveyors for successively receiving the individual folded diapers therefrom and for positioning same in side-by-side relation.
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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) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |