US3502322A - Folding of sheet material - Google Patents

Folding of sheet material Download PDF

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US3502322A
US3502322A US659744A US3502322DA US3502322A US 3502322 A US3502322 A US 3502322A US 659744 A US659744 A US 659744A US 3502322D A US3502322D A US 3502322DA US 3502322 A US3502322 A US 3502322A
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fold line
folding
conveyor
air
folded
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US659744A
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William Broadbent Gordon Cran
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Thomas Broadbent and Sons Ltd
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Thomas Broadbent and Sons Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/02—Folding limp material without application of pressure to define or form crease lines
    • B65H45/04—Folding sheets
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F89/00—Apparatus for folding textile articles with or without stapling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/937—Textile

Definitions

  • a method of folding foldable limp sheet material for example laundry workpieces, which comprises supporting the sheet material in an open condition, restraining it along a fold line against upward movement, directing a curtain of air upwardly against the material from below along a line to one side of the fold line to raise the material at said one side of the fold line from its supported position and causing the raised material to swing across the fold line and then downwardly by constraining at least some of the air of the curtain to flow across the fold line.
  • two marginal portions of the material are folded inwardly towards one another about spaced parallel fold lines.
  • the disclosure includes apparatus for performing the method.
  • the present invention relates to folding of foldable limp sheet material and especially of laundry workreces.
  • limp sheet material is folded by supporting it in an open condition, restraining it along a fold line against upward movement, directing a curtain of air upwardly against the material from below along a line to one side of the fold line to raise the material at said one side of the fold line from its supported position and causing the raised material to swing across the fold line andthen downwardly by constraining at least some of the air of the curtain to flow across the fold line.
  • at least some of the air curtain is constrained to flow across the fold line and then downwardly towards that part of the material at the other side of the fold line.
  • the air curtain may be directed upwardly along a line immediately to one side of the fold line.
  • a further feature of the invention resides in folding limp sheet material on itself to a prescribed width by folding two marginal portions of the material inwardly towards one another in the manner set forth above about parallel fold lines which are spaced to correspond with said prescribed width. If said marginal portions are to overlap when folded then one curtain of air may be directed upwardly against one of said marginal portions before a second curtain of air is directed upwardly against the other.
  • the method of the present invention may be carried out while the material is stationarily supported for example on a platform or while supported on a travelling conveyor.
  • the material may be restrained against upward movement along the fold line by a rod, rail or the like.
  • Apparatus for folding limp foldable sheet material comprises means for supporting the sheet material in an open condition, means for restraining the sheet material along a fold line against upward movement, a slot or gap in said supporting means to one side of the fold line, last means for directing a curtain of air upwardly from or through said slot or United States Patent 0 gap and guide means located above the fold line for constraining at least some of the air of the curtain to flow across the fold line.
  • the said guide means may be arched transversely of the fold line in order to constrain at least some of the air of the curtain to flow across the fold line and then downwardly towards the supporting means at the other side of the fold line.
  • a folding device may comprise means for restraining the sheet material along two spaced parallel fold lines (for example two parallel rods), a slot or gap in the supporting means to that side of each of the fold lines remote from the other, blast means for directing a curtain of air upwardly from or through each said slot or gap and guide means above each fold line.
  • two spaced parallel fold lines for example two parallel rods
  • blast means for directing a curtain of air upwardly from or through each said slot or gap and guide means above each fold line.
  • the material to be folded may be conveyed to a folding location beneath said restraining means by a con veyor which comprises conveyor tapes which provide therebetween a slot or gap or slots or gaps through which an air curtain or curtains may be directed.
  • a con veyor which comprises conveyor tapes which provide therebetween a slot or gap or slots or gaps through which an air curtain or curtains may be directed.
  • the said constraining rods may be smoothly surfaced and conveyor tapes may be roughly surfaced.
  • FIGS.1 and 2 are a diagrammatic perspective and an end view illustrating the general principle of the invention
  • FIG. 3 illustrates a sheet of material folded by means of the invention
  • FIGS. 4 to 7 are diagrammatic side views illustrating one form of device according to the present invention at different stages of operation
  • FIG. 8 is a diagrammatic end view illustrating a portion of the device of FIG. 4;
  • FIG. 9 is a plan view illustrating a modification of a part of the invention.
  • FIG. 10 is a perspective view illustrating a folding device according to the invention for folding sheet material whilst moving on a travelling conveyor;
  • FIG. 11 is a perspective view illustrating a folding device, somewhat different from that of FIGS. 4 to 7, for folding sheet material whilst stationary.
  • FIG. 1 a pair of parallel restraining rods 1 are connected by a yoke 2 and supported from above by an upward projection 3 extending from the middle of the yoke 2.
  • the rods 1 are arranged above and extend longitudinally of a tape conveyor 4 supported by conveyor rolls 5, 6.
  • Each of the rods 1 is arranged parallel to and inwardly of a gap 8 between two of the tapes of the conveyor.
  • a transverse presser roll 10 is disposed just beyond the rods 1 in order to crease the folded material as it leaves the rods 1.
  • FIG. 2 For the sake of simplicity of description a sheet of material 12 is shown in FIG. 2 supported on a platform 13 instead of on a belt.
  • Parallel linear slots 14 run lengthwise of the platform 13 and rods 15 extend along and above the inner margins of the slots 14.
  • a blast pipe 16 is disposed beneath each of the slots 14.
  • each blast pipe 16 and rod 15 there is a transversely arched guide sheet 17 which extends inwardly and upwardly to a locality beyond rod 15 and then descends towards the platform 13.
  • Margins of the material to be folded are shown in a flat condition at 20, in a fully folded condition at 21 and in an intermediate condition at 2 2. From this it will be appreciated that the folding is achieved by constraining the air curtain to blow firstly inwardly and upwardly and then inwardly and downwardly.
  • FIG. 3 illustrates the sheet 12 when folded.
  • FIGS. 4 to 7 incorporates the tape conveyor 4 of FIG. 1 supported by conveyor rolls 5, 6, a pair of parallel rods 1 supported from an upward projection 3 and a presser roll 10'.
  • a feeler device for sensing the arrival at the folding position of a piece of material 25 to be folded is diagrammatically illustrated at 26.
  • a platform 27 disposed between the upper and lower runs of the conveyor 4 is supported by two transversely spaced rams 28 which are capable of raising the platform as illustrated in FIG. 5 and of lowering it again as illustrated in FIG. 7.
  • the appearance of the platform in end view is illustrated in FIG. 8 from which the rams 28 are omitted.
  • the platform has narrower parallel channels 30 in its upper surface each capable of receiving one of the tapes of the conveyor 4 and it also has wider parallel channels 31 each capable of receiving a tape of the conveyor and one of the blast pipes 16 of FIG. 2.
  • Arched guide sheets 32 (not shown in FIGS. 4 to 7) substantially similar to the guide sheets 17 of FIG. 2 are arranged respectively above the blast pipes 16.
  • a timing mechanism is set in operation which first of all causes the conveyor 4 to stop.
  • the platform 27 is then automatically caused to rise as indicated by the arrow 33 to the position shown in FIG. 5 so as to bring the surface of the platform into abutment with the rods 1 whereby to clamp the piece 25 therebetween.
  • An air curtain is then caused to issue upwardly from blast pipes 16 (not shown in FIGS. 4 to 7).
  • the material is thereupon caused to move as indicated by the broken lines in FIG. 8 to reach a folded condition as illustrated in FIG. 6.
  • the timing mechanism then causes the platform 27 to descend as illustrated by the arrow 34 to its original position and re-starts the conveyor 4 to pass the folded piece 25 between a presser platform 35 and presser roll 10.
  • FIG. 9 diagrammatically illustrates part of an alternative form of device in which the restraining rods 1 are provided with slightly divergent extensions 40 to enhance the neatness of the fold prior to the arrival of the folded material beneath the presser roll 10.
  • FIG. 9 illustrates a case where the folded margins 41, 42 overlap.
  • the restraining means comprises a pair of parallel rods 1 connected by a yoke 2 and supported from above by a projection 3 from the middle of the yoke 2.
  • the rods 1 are arranged above and extend longitudinally of a tape conveyor 4 supported by conveyor rolls 5, 6.
  • Each of the rods 1 is arranged parallel to and at the inner edge of a gap -8 between two of the tapes of the conveyor.
  • a blast pipe 16 is arranged in each of the gaps 8. Guide means 17 are arched transversely over each of the rods 1.
  • the supply of air to the blast pipes 16 is controlled by a sensing device 26 which is capable of detecting the arrival beneath the restraining rods 1 of a piece of material to be folded.
  • the rods 1 are smoothly surfaced and the conveyor tapes more roughly surfaced.
  • Transverse presser roll 10 extends across the conveyor 4 at the downstream side of the rods 1 and guides 17.
  • the device of FIG. 10 folds the workpiece while travelling on the conveyor 4.
  • the folding device illustrated in FIG; 11 is largely similar to that of FIG. 10 but is adapted for folding a workpiece when stationary and it differs from that of FIGS. 4 to 7 in that the platform 27 of FIGS. 4 to 7 is replaced by a set of interconnected spaced parallel lifter bars 45 located in gaps between the tapes of the conveyor 4.
  • the set of lifter bars 45 are raised and lowered by a set of four pneumatic jacks 46 (of which only three can be seen in FIG. 11).
  • the sensing device 26 is capable of detecting the arrival beneath the rods 1 of a sheet of material to be folded and with the aid of a timing device controls first of all the raising of the jacks 46 to raise the lifter bars 45, then the supply of air to the blast pipes 16, then the discontinuance of the air supply to the blast pipes and the lowering of the jacks 46.
  • a method of folding limp sheet material for example laundry workpieces wherein the sheet material is supported in an open condition and is folded across a fold line along which it is restrained against upward movement characterized by directing a curtain of air upwardly against the material from below along a line to one side of the fold line to raise the material at said one side of the fold line from its supported position and at some distance above the fold line causing the air curtain to change direction to constrain at least some of the air of the curtain to flow across the fold line and thus to cause the raised material to swing across the fold line.
  • Apparatus for folding limp sheet material for example laundry workpieces comprising means for supporting the sheet material in a fiat open condition, means for restraining the sheet material along a fold line against upward movement, a slot in said supporting means to one side of the fold line, blast means for directing a curtain of air upwardly through said slot, and air guide means located above the fold line for constraining at least some of the air of the curtain to flow across the fold line for folding a portion of the sheet material inwardly about the fold line.
  • Apparatus according to claim 6 comprising means for restraining the sheet material along two spaced parallel fold lines, a gap in said supporting means to that side of each of the fold lines remote from the other, blast means for causing a curtain of air to flow upwardly from each of said gaps and guide means above each fold line.
  • Apparatus according to claim 6 in which the material to be folded is conveyed to a folding location beneath said restraining means by means of a conveyor which comprises conveyor tapes which provide therebetween a gap through which an air curtain may be directed.
  • Apparatus according to claim 10 comprising a tape conveyor, a platform located beneath said restraining means and between the upper and lower runs of the con veyor and capable of being raised into abutment with the restraining means and of being lowered therefrom and formed with channels to accommodate the tapes of the conveyor and to accommodate at least one blast air supply pipe running parallel with said restraining means and with the tapes of the conveyor.
  • Apparatus according to claim 10 comprising a tape conveyor, a set of interconnected spaced parallel lifter bars located beneath said restraining means and between the upper and lower runs of the conveyor and capable of being raised into abutment with the restraining means and of being lowered therefrom, each of said lifter bars being References Cited located between two adjacent tapes of the conveyor, and UNITED STATES PATENTS a blast air supply pipe or pipes running parallel with 908 5 955 h 70 9 sa d restraining means and with the tapes of the con- 5 39 2 2x963 g rlst 2 6 6% veyor. rer
  • Apparatus according to claim 6 o ri in a 5 3,110,232 11/ 1963
  • Fr l 93-49 sensing means controlling the supply of air to i blast 3,371,585 968 Mo er et a1 93-52 means and capable of detecting the arrival beneath said restraining means of material to be folded.
  • FOREIGN PATENTS 14. Apparatus according to claim 6 comprising a 10 1,091,846 10/1960 Germany.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

March 24, 1970 w. B. G. CRAN FOLDING O F SHEET MATERIAL 5 Sheets-Sheet 1 Filed Aug. 10, 1967 INVENTOR.
WILLIAM BROADBEN GORDON GRAN FIGS.
BY 754m, 922 a fiemld e,
March 24, 1970 w. B. a. CRAN 3,
FOLDING OF sxmm MATERIAL Filed Aug. 10. 1967 5 Sheets-Sheet 2 70 25' I a 1 25 3 a a 4 4 I (/D 27* L \27Q FIGS.
WILLIAM URDADBENT GORDON GRAN BY 640mm, any! 4- um/4 INVENTOR.
March 24, 1970 w. B. 'G. CRAN 3,502,322
FOLDING OF SHEET MATERIAL Filed Aug. 10, 1967 5 Sheets-Sheet 3 FIGS.
INVENTOR. blmmm BROAMENT Gomon GRAN March 24, 1970 w. B. is. CRAN 3,502,322
FOLDING OF SHEET MATERIAL Filed Aug. 10, 1967 5 Sheets-Sheet 4 NV ENTOR. WILUAP'I BROADBENT GORDON CRAN BY mme, rrgwad March 24, 1970 w. B. a. CRAN 3,502,322
FOLDING OF SHEET MATERIAL Filed Aug. 10, 1967 5 Sheets-Sheet 5 I INVENTOR. WILLIAM BROADBENT some: cm!
3,502,322 FOLDING F SHEET MATERIAL William Broadbent Gordon Cran, Shelley, near Huddersfield, England, assignor to Thomas Broadbent 8: Sons Limited, Huddersfield, England Filed Aug. 10, 1967, Ser. No. 659,744 Claims priority, application Great Britain, Aug. 17, 1966, 36,751/66 Int. Cl. B65h 45/22 US. Cl. 270-69 14 Claims ABSTRACT OF THE DISCLOSURE A method of folding foldable limp sheet material, for example laundry workpieces, which comprises supporting the sheet material in an open condition, restraining it along a fold line against upward movement, directing a curtain of air upwardly against the material from below along a line to one side of the fold line to raise the material at said one side of the fold line from its supported position and causing the raised material to swing across the fold line and then downwardly by constraining at least some of the air of the curtain to flow across the fold line.
In a preferred method two marginal portions of the material are folded inwardly towards one another about spaced parallel fold lines.
The disclosure includes apparatus for performing the method.
The present invention relates to folding of foldable limp sheet material and especially of laundry workreces.
p According to the present invention limp sheet material is folded by supporting it in an open condition, restraining it along a fold line against upward movement, directing a curtain of air upwardly against the material from below along a line to one side of the fold line to raise the material at said one side of the fold line from its supported position and causing the raised material to swing across the fold line andthen downwardly by constraining at least some of the air of the curtain to flow across the fold line. Preferably at least some of the air curtain is constrained to flow across the fold line and then downwardly towards that part of the material at the other side of the fold line. The air curtain may be directed upwardly along a line immediately to one side of the fold line.
A further feature of the invention resides in folding limp sheet material on itself to a prescribed width by folding two marginal portions of the material inwardly towards one another in the manner set forth above about parallel fold lines which are spaced to correspond with said prescribed width. If said marginal portions are to overlap when folded then one curtain of air may be directed upwardly against one of said marginal portions before a second curtain of air is directed upwardly against the other.
The method of the present invention may be carried out while the material is stationarily supported for example on a platform or while supported on a travelling conveyor. The material may be restrained against upward movement along the fold line by a rod, rail or the like.
Apparatus for folding limp foldable sheet material according to the present invention comprises means for supporting the sheet material in an open condition, means for restraining the sheet material along a fold line against upward movement, a slot or gap in said supporting means to one side of the fold line, last means for directing a curtain of air upwardly from or through said slot or United States Patent 0 gap and guide means located above the fold line for constraining at least some of the air of the curtain to flow across the fold line. The said guide means may be arched transversely of the fold line in order to constrain at least some of the air of the curtain to flow across the fold line and then downwardly towards the supporting means at the other side of the fold line.
A folding device according to the invention may comprise means for restraining the sheet material along two spaced parallel fold lines (for example two parallel rods), a slot or gap in the supporting means to that side of each of the fold lines remote from the other, blast means for directing a curtain of air upwardly from or through each said slot or gap and guide means above each fold line.
The material to be folded may be conveyed to a folding location beneath said restraining means by a con veyor which comprises conveyor tapes which provide therebetween a slot or gap or slots or gaps through which an air curtain or curtains may be directed.
To enable the material to be folded whilst travelling on the conveyor the said constraining rods may be smoothly surfaced and conveyor tapes may be roughly surfaced.
The invention is further described by way of ex ample with reference to the accompanying drawings, in which:
FIGS.1 and 2 are a diagrammatic perspective and an end view illustrating the general principle of the invention;
FIG. 3 illustrates a sheet of material folded by means of the invention;
FIGS. 4 to 7 are diagrammatic side views illustrating one form of device according to the present invention at different stages of operation;
FIG. 8 is a diagrammatic end view illustrating a portion of the device of FIG. 4;
FIG. 9 is a plan view illustrating a modification of a part of the invention;
FIG. 10 is a perspective view illustrating a folding device according to the invention for folding sheet material whilst moving on a travelling conveyor; and
FIG. 11 is a perspective view illustrating a folding device, somewhat different from that of FIGS. 4 to 7, for folding sheet material whilst stationary.
In FIG. 1 a pair of parallel restraining rods 1 are connected by a yoke 2 and supported from above by an upward projection 3 extending from the middle of the yoke 2. The rods 1 are arranged above and extend longitudinally of a tape conveyor 4 supported by conveyor rolls 5, 6. Each of the rods 1 is arranged parallel to and inwardly of a gap 8 between two of the tapes of the conveyor. A transverse presser roll 10 is disposed just beyond the rods 1 in order to crease the folded material as it leaves the rods 1.
For the sake of simplicity of description a sheet of material 12 is shown in FIG. 2 supported on a platform 13 instead of on a belt. Parallel linear slots 14 run lengthwise of the platform 13 and rods 15 extend along and above the inner margins of the slots 14. A blast pipe 16 is disposed beneath each of the slots 14.
Above each blast pipe 16 and rod 15 there is a transversely arched guide sheet 17 which extends inwardly and upwardly to a locality beyond rod 15 and then descends towards the platform 13. Margins of the material to be folded are shown in a flat condition at 20, in a fully folded condition at 21 and in an intermediate condition at 2 2. From this it will be appreciated that the folding is achieved by constraining the air curtain to blow firstly inwardly and upwardly and then inwardly and downwardly. FIG. 3 illustrates the sheet 12 when folded.
The device illustrated in FIGS. 4 to 7 incorporates the tape conveyor 4 of FIG. 1 supported by conveyor rolls 5, 6, a pair of parallel rods 1 supported from an upward projection 3 and a presser roll 10'. A feeler device for sensing the arrival at the folding position of a piece of material 25 to be folded is diagrammatically illustrated at 26. A platform 27 disposed between the upper and lower runs of the conveyor 4 is supported by two transversely spaced rams 28 which are capable of raising the platform as illustrated in FIG. 5 and of lowering it again as illustrated in FIG. 7. The appearance of the platform in end view is illustrated in FIG. 8 from which the rams 28 are omitted. The platform has narrower parallel channels 30 in its upper surface each capable of receiving one of the tapes of the conveyor 4 and it also has wider parallel channels 31 each capable of receiving a tape of the conveyor and one of the blast pipes 16 of FIG. 2. Arched guide sheets 32 (not shown in FIGS. 4 to 7) substantially similar to the guide sheets 17 of FIG. 2 are arranged respectively above the blast pipes 16.
When the forward end of a workpiece 25 reaches the feeler device 26 a timing mechanism is set in operation which first of all causes the conveyor 4 to stop. The platform 27 is then automatically caused to rise as indicated by the arrow 33 to the position shown in FIG. 5 so as to bring the surface of the platform into abutment with the rods 1 whereby to clamp the piece 25 therebetween. An air curtain is then caused to issue upwardly from blast pipes 16 (not shown in FIGS. 4 to 7). The material is thereupon caused to move as indicated by the broken lines in FIG. 8 to reach a folded condition as illustrated in FIG. 6. The timing mechanism then causes the platform 27 to descend as illustrated by the arrow 34 to its original position and re-starts the conveyor 4 to pass the folded piece 25 between a presser platform 35 and presser roll 10.
FIG. 9 diagrammatically illustrates part of an alternative form of device in which the restraining rods 1 are provided with slightly divergent extensions 40 to enhance the neatness of the fold prior to the arrival of the folded material beneath the presser roll 10. FIG. 9 illustrates a case where the folded margins 41, 42 overlap. When the margins of the folded material are to overlap the issue of the air curtains from the blast pipes 16 should be separately timed to enable the folding of one margin of the material to begin before the other.
In FIG. the restraining means comprises a pair of parallel rods 1 connected by a yoke 2 and supported from above by a projection 3 from the middle of the yoke 2. The rods 1 are arranged above and extend longitudinally of a tape conveyor 4 supported by conveyor rolls 5, 6. Each of the rods 1 is arranged parallel to and at the inner edge of a gap -8 between two of the tapes of the conveyor.
A blast pipe 16 is arranged in each of the gaps 8. Guide means 17 are arched transversely over each of the rods 1. The supply of air to the blast pipes 16 is controlled by a sensing device 26 which is capable of detecting the arrival beneath the restraining rods 1 of a piece of material to be folded.
The rods 1 are smoothly surfaced and the conveyor tapes more roughly surfaced.
Transverse presser roll 10 extends across the conveyor 4 at the downstream side of the rods 1 and guides 17.
The device of FIG. 10 folds the workpiece while travelling on the conveyor 4.
The folding device illustrated in FIG; 11 is largely similar to that of FIG. 10 but is adapted for folding a workpiece when stationary and it differs from that of FIGS. 4 to 7 in that the platform 27 of FIGS. 4 to 7 is replaced by a set of interconnected spaced parallel lifter bars 45 located in gaps between the tapes of the conveyor 4. The set of lifter bars 45 are raised and lowered by a set of four pneumatic jacks 46 (of which only three can be seen in FIG. 11). The sensing device 26 is capable of detecting the arrival beneath the rods 1 of a sheet of material to be folded and with the aid of a timing device controls first of all the raising of the jacks 46 to raise the lifter bars 45, then the supply of air to the blast pipes 16, then the discontinuance of the air supply to the blast pipes and the lowering of the jacks 46.
'I claim:
1. A method of folding limp sheet material, for example laundry workpieces wherein the sheet material is supported in an open condition and is folded across a fold line along which it is restrained against upward movement characterized by directing a curtain of air upwardly against the material from below along a line to one side of the fold line to raise the material at said one side of the fold line from its supported position and at some distance above the fold line causing the air curtain to change direction to constrain at least some of the air of the curtain to flow across the fold line and thus to cause the raised material to swing across the fold line.
2. A method according to claim 6 in which at least some of the air of the curtain is constrained to flow across the fold line and then downwardly towards that part of the material at the other side of the fold line.
3. A method according to claim 6 in which the material is folded while supported on a travelling conveyor.
4. A method according to claim 6 in which two marginal portions of the material are folded inwardly towards one another about spaced parallel fold lines.
5. A method according to claim 4 in which said marginal portions are folded by two air curtains of which one is directed upwardly against one of said marginal portions before the other is directed upwardly against the other of said marginal portions.
6. Apparatus for folding limp sheet material, for example laundry workpieces comprising means for supporting the sheet material in a fiat open condition, means for restraining the sheet material along a fold line against upward movement, a slot in said supporting means to one side of the fold line, blast means for directing a curtain of air upwardly through said slot, and air guide means located above the fold line for constraining at least some of the air of the curtain to flow across the fold line for folding a portion of the sheet material inwardly about the fold line.
7. Apparatus according to claim 6 in which said guide means is arched transversely of the fold line in order to constrain at least some of the air of the curtain to flow across the fold line and then downwardly towards the supporting means at the other side of the fold line.
8. Apparatus according to claim 6 comprising means for restraining the sheet material along two spaced parallel fold lines, a gap in said supporting means to that side of each of the fold lines remote from the other, blast means for causing a curtain of air to flow upwardly from each of said gaps and guide means above each fold line.
9. Apparatus according to claim 6 in which said restraining means comprises a rod.
10. Apparatus according to claim 6 in which the material to be folded is conveyed to a folding location beneath said restraining means by means of a conveyor which comprises conveyor tapes which provide therebetween a gap through which an air curtain may be directed.
11. Apparatus according to claim 10 comprising a tape conveyor, a platform located beneath said restraining means and between the upper and lower runs of the con veyor and capable of being raised into abutment with the restraining means and of being lowered therefrom and formed with channels to accommodate the tapes of the conveyor and to accommodate at least one blast air supply pipe running parallel with said restraining means and with the tapes of the conveyor.
12. Apparatus according to claim 10 comprising a tape conveyor, a set of interconnected spaced parallel lifter bars located beneath said restraining means and between the upper and lower runs of the conveyor and capable of being raised into abutment with the restraining means and of being lowered therefrom, each of said lifter bars being References Cited located between two adjacent tapes of the conveyor, and UNITED STATES PATENTS a blast air supply pipe or pipes running parallel with 908 5 955 h 70 9 sa d restraining means and with the tapes of the con- 5 39 2 2x963 g rlst 2 6 6% veyor. rer
13. Apparatus according to claim 6 o ri in a 5 3,110,232 11/ 1963 Fr l 93-49 sensing means controlling the supply of air to i blast 3,371,585 968 Mo er et a1 93-52 means and capable of detecting the arrival beneath said restraining means of material to be folded. FOREIGN PATENTS 14. Apparatus according to claim 6 comprising a 10 1,091,846 10/1960 Germany.
presser roll extending across the supporting means beyond the restraining mea LAWRENCE CHARLES, Primary Examiner
US659744A 1966-08-17 1967-08-10 Folding of sheet material Expired - Lifetime US3502322A (en)

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Cited By (79)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640235A (en) * 1970-06-05 1972-02-08 Burton & Noonan Method and apparatus for cutting and hemming cloth lengths
US3656741A (en) * 1970-04-03 1972-04-18 Thomas F Macke Folding apparatus
US4701156A (en) * 1982-09-29 1987-10-20 Paper-Pak Products, Inc. Method and apparatus for fabricating three-fold pads
WO1992017633A1 (en) * 1991-03-27 1992-10-15 Chicago Dryer Company Folder construction
US5259827A (en) * 1992-01-15 1993-11-09 Tadeusz Staniszewski Apparatus for folding a paper sheet
US5556360A (en) * 1991-03-27 1996-09-17 Chicago Dryer Company High production folder construction
EP0881320A1 (en) * 1997-05-30 1998-12-02 Orman B.V. Folding device and method for folding flat pieces of laundry in longitudinal direction
WO2001087753A2 (en) * 2000-05-16 2001-11-22 Kimberly-Clark Worldwide, Inc. Presentation for bonding of garment side panels
WO2001087562A2 (en) * 2000-05-16 2001-11-22 Kimberly-Clark Worldwide, Inc. Method and apparatus for forming a lap seam
US6481362B2 (en) 2000-05-16 2002-11-19 Kimberly-Clark Worldwide, Inc. Orbital motion device for seaming garments
US6497032B2 (en) 2000-05-16 2002-12-24 Kimberly-Clark Worldwide, Inc. Refastenable bonding of garment side panels
US6513221B2 (en) 2000-05-16 2003-02-04 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US6514187B2 (en) 2000-05-16 2003-02-04 Kimberly-Clark Worldwide, Inc. Folding and manufacture of pants
US6562167B2 (en) 2000-05-16 2003-05-13 Kimberly-Clark Worldwide, Inc. Methods for making garments with fastening components
US6723034B2 (en) 2000-05-16 2004-04-20 Kimberly-Clark Worldwide, Inc. Presentation of fastening components for making prefastened and refastenable pants
US6846374B2 (en) 2000-05-16 2005-01-25 Kimberly-Clark Worldwide Method and apparatus for making prefastened and refastenable pant with desired waist and hip fit
US20050096205A1 (en) * 2003-10-31 2005-05-05 Nordson Corporation Apparatus and methods for folding a nonbonded nonwoven web
US20050230024A1 (en) * 2004-04-19 2005-10-20 Curt G. Joa, Inc. Method of producing an ultrasonically bonded lap seam
US20050230449A1 (en) * 2004-04-20 2005-10-20 Curt G. Joa, Inc. Apparatus and method of increasing web storage in a dancer
US20050234412A1 (en) * 2004-04-19 2005-10-20 Curt G. Joa, Inc. Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US20050230037A1 (en) * 2004-04-20 2005-10-20 Curt G. Joa, Inc. Staggered cutting knife
US20050233881A1 (en) * 2004-04-19 2005-10-20 Curt G. Joa, Inc. Method and apparatus for reversing direction of an article
US20050230056A1 (en) * 2004-04-20 2005-10-20 Curt G. Joa, Inc. Multiple tape application method and apparatus
US20050257881A1 (en) * 2004-05-21 2005-11-24 Curt G. Joa, Inc. Method of producing a pants-type diaper
US20050275148A1 (en) * 2004-06-15 2005-12-15 Curt G. Joa, Inc. Method and apparatus for securing stretchable film using vacuum
US20060130964A1 (en) * 2004-04-20 2006-06-22 Curt G. Joa, Inc. Apparatus and method for cutting elastic strands between layers of carrier webs
US20060201619A1 (en) * 2005-03-09 2006-09-14 Curt G. Joa, Inc. Transverse tape application method and apparatus
US20060266465A1 (en) * 2005-05-31 2006-11-30 Curt G. Joa, Inc. High speed vacuum porting
US20060266466A1 (en) * 2005-05-31 2006-11-30 Curt G. Joa, Inc. Web stabilization on a slip and cut applicator
US20060277439A1 (en) * 2005-06-01 2006-12-07 Microsoft Corporation Code coverage test selection
US20070193856A1 (en) * 2006-02-17 2007-08-23 Curt G. Joa, Inc. Article transfer and placement apparatus with active puck
US20070250032A1 (en) * 2006-03-08 2007-10-25 Curt G. Joa, Inc. Refastenable tab for disposable pant and methods for making same
US20070256777A1 (en) * 2005-03-09 2007-11-08 Curt G. Joa Inc. Transverse tab application method and apparatus
US20070267149A1 (en) * 2006-05-18 2007-11-22 Curt G. Joa, Inc. Trim removal system
US20080050531A1 (en) * 2006-08-28 2008-02-28 Curt G. Joa, Inc. Apparatus and method for wetting a continuous web
US7387148B2 (en) 2001-05-15 2008-06-17 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US20080169373A1 (en) * 2007-01-12 2008-07-17 Curt G. Joa, Inc. Apparatus and methods for minimizing waste during web splicing
US20080196564A1 (en) * 2007-02-21 2008-08-21 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US20080276439A1 (en) * 2007-05-09 2008-11-13 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US20090058835A1 (en) * 2007-09-05 2009-03-05 Himax Technologies Limited Method for transmitting image data to driver of display
US20100263987A1 (en) * 2004-04-19 2010-10-21 Curt G. Joa, Inc. Method and apparatus for changing speed or direction of an article
US20110094657A1 (en) * 2009-10-28 2011-04-28 Curt G. Joa, Inc. Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US20110155305A1 (en) * 2009-12-30 2011-06-30 Curt G. Joa, Inc. Apparatus and method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8007484B2 (en) 2005-04-01 2011-08-30 Curt G. Joa, Inc. Pants type product and method of making the same
US8172977B2 (en) 2009-04-06 2012-05-08 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8182624B2 (en) 2008-03-12 2012-05-22 Curt G. Joa, Inc. Registered stretch laminate and methods for forming a registered stretch laminate
US8398793B2 (en) 2007-07-20 2013-03-19 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations
USD684613S1 (en) 2011-04-14 2013-06-18 Curt G. Joa, Inc. Sliding guard structure
US8656817B2 (en) 2011-03-09 2014-02-25 Curt G. Joa Multi-profile die cutting assembly
US8663411B2 (en) 2010-06-07 2014-03-04 Curt G. Joa, Inc. Apparatus and method for forming a pant-type diaper with refastenable side seams
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703712S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703711S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum communication structure
USD704237S1 (en) 2013-08-23 2014-05-06 Curt G. Joa, Inc. Ventilated vacuum commutation structure
US8820380B2 (en) 2011-07-21 2014-09-02 Curt G. Joa, Inc. Differential speed shafted machines and uses therefor, including discontinuous and continuous side by side bonding
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
US9387131B2 (en) 2007-07-20 2016-07-12 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automated threading and re-threading of web materials
CN105883099A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Push plate blowing type folding device for wiping cloth for farm machine
CN105883473A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Guide folding absorbing conveying device of wiping cloth for agricultural machine
CN105883103A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Air blowing type folding device of wiping cloth for agricultural machine
CN105883100A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Swinging air blowing type folding device of wiping cloth for agricultural machine
CN105883107A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Pushing plate type vacuum adsorbing and folding device for wiping cloth for agricultural machine
US9433538B2 (en) 2006-05-18 2016-09-06 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web and formation of articles using a dual cut slip unit
DE102006033539B4 (en) * 2006-07-20 2017-01-05 Gottlob Stahl Wäschereimaschinenbau GmbH Folding device for home textiles and similar materials
US9550306B2 (en) 2007-02-21 2017-01-24 Curt G. Joa, Inc. Single transfer insert placement and apparatus with cross-direction insert placement control
US9566193B2 (en) 2011-02-25 2017-02-14 Curt G. Joa, Inc. Methods and apparatus for forming disposable products at high speeds with small machine footprint
US9603752B2 (en) 2010-08-05 2017-03-28 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic cuff defect correction
US9622918B2 (en) 2006-05-18 2017-04-18 Curt G. Joe, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
CN108975043A (en) * 2018-08-07 2018-12-11 佛山市宾宏设备有限公司 A kind of ruler angle cloth folding machine
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10456302B2 (en) 2006-05-18 2019-10-29 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles
CN112914322A (en) * 2021-01-30 2021-06-08 常州聚锦自动化设备有限公司 Novel bedspread production process
US11737930B2 (en) 2020-02-27 2023-08-29 Curt G. Joa, Inc. Configurable single transfer insert placement method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114735295B (en) * 2022-06-10 2022-09-02 成都国光电气股份有限公司 Automatic medicine board packaging equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709080A (en) * 1951-07-09 1955-05-24 American Machine & Metals Small piece folders
DE1091846B (en) * 1958-11-06 1960-10-27 Bobst & Sohn A G J Method and device for S- or Z-shaped folding of cut parts separated by grooves during the longitudinal movement of the cut in machines for the production of folding boxes
US3079144A (en) * 1958-07-09 1963-02-26 Bobst And Son S A J Folding and gluing machines operating on sheets
US3110232A (en) * 1960-10-06 1963-11-12 Bobst J Folding processes by compressed air blast applicable to a folding glueing machine and devices for setting this process into operation
US3371585A (en) * 1963-10-14 1968-03-05 Langston Company Glued flap box folding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709080A (en) * 1951-07-09 1955-05-24 American Machine & Metals Small piece folders
US3079144A (en) * 1958-07-09 1963-02-26 Bobst And Son S A J Folding and gluing machines operating on sheets
DE1091846B (en) * 1958-11-06 1960-10-27 Bobst & Sohn A G J Method and device for S- or Z-shaped folding of cut parts separated by grooves during the longitudinal movement of the cut in machines for the production of folding boxes
US3110232A (en) * 1960-10-06 1963-11-12 Bobst J Folding processes by compressed air blast applicable to a folding glueing machine and devices for setting this process into operation
US3371585A (en) * 1963-10-14 1968-03-05 Langston Company Glued flap box folding machine

Cited By (130)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656741A (en) * 1970-04-03 1972-04-18 Thomas F Macke Folding apparatus
US3640235A (en) * 1970-06-05 1972-02-08 Burton & Noonan Method and apparatus for cutting and hemming cloth lengths
US4701156A (en) * 1982-09-29 1987-10-20 Paper-Pak Products, Inc. Method and apparatus for fabricating three-fold pads
WO1992017633A1 (en) * 1991-03-27 1992-10-15 Chicago Dryer Company Folder construction
US5300007A (en) * 1991-03-27 1994-04-05 Chicago Dryer Company Folder construction
US5435802A (en) * 1991-03-27 1995-07-25 Chicago Dryer Company Folder construction
US5556360A (en) * 1991-03-27 1996-09-17 Chicago Dryer Company High production folder construction
US5259827A (en) * 1992-01-15 1993-11-09 Tadeusz Staniszewski Apparatus for folding a paper sheet
EP0881320A1 (en) * 1997-05-30 1998-12-02 Orman B.V. Folding device and method for folding flat pieces of laundry in longitudinal direction
US5921908A (en) * 1997-05-30 1999-07-13 Orman B.V. Folding device and method for folding flat pieces of laundry in longitudinal direction
US6846374B2 (en) 2000-05-16 2005-01-25 Kimberly-Clark Worldwide Method and apparatus for making prefastened and refastenable pant with desired waist and hip fit
US20030201061A1 (en) * 2000-05-16 2003-10-30 Csida Jason Gene Presentation and bonding of garment side panels
WO2001087753A3 (en) * 2000-05-16 2002-03-21 Kimberly Clark Co Presentation for bonding of garment side panels
WO2001087562A3 (en) * 2000-05-16 2002-06-13 Kimberly Clark Co Method and apparatus for forming a lap seam
US6481362B2 (en) 2000-05-16 2002-11-19 Kimberly-Clark Worldwide, Inc. Orbital motion device for seaming garments
US6497032B2 (en) 2000-05-16 2002-12-24 Kimberly-Clark Worldwide, Inc. Refastenable bonding of garment side panels
US6513221B2 (en) 2000-05-16 2003-02-04 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US6514187B2 (en) 2000-05-16 2003-02-04 Kimberly-Clark Worldwide, Inc. Folding and manufacture of pants
US20030066592A1 (en) * 2000-05-16 2003-04-10 Maxton David Albert Refastenable bonding of garment side panels
US6562167B2 (en) 2000-05-16 2003-05-13 Kimberly-Clark Worldwide, Inc. Methods for making garments with fastening components
US6565691B2 (en) 2000-05-16 2003-05-20 Kimberly-Clark Worldwide, Inc. Method and apparatus for forming a lap seam
US20030114829A1 (en) * 2000-05-16 2003-06-19 Coenen Joseph Daniel Methods for making garments with fastening components
US6596113B2 (en) 2000-05-16 2003-07-22 Kimberly-Clark Worldwide, Inc. Presentation and bonding of garment side panels
USRE45256E1 (en) 2000-05-16 2014-11-25 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US6723034B2 (en) 2000-05-16 2004-04-20 Kimberly-Clark Worldwide, Inc. Presentation of fastening components for making prefastened and refastenable pants
US6808787B2 (en) 2000-05-16 2004-10-26 Kimberly-Clark Worldwide Methods for making garments with fastening components
US7069970B2 (en) 2000-05-16 2006-07-04 Kimberly-Clark Worldwide, Inc. Apparatus for forming a lap seam
US20050085782A1 (en) * 2000-05-16 2005-04-21 Entire Interest Method and apparatus for making prefastened and refastenable pant with desired waist and hip fit
US7175584B2 (en) 2000-05-16 2007-02-13 Kimberly-Clark Worldwide, Inc. Refastenable bonding of garment side panels
US7452320B2 (en) 2000-05-16 2008-11-18 Kimberly-Clark Worldwide, Inc. Presentation and bonding of garment side panels
WO2001087753A2 (en) * 2000-05-16 2001-11-22 Kimberly-Clark Worldwide, Inc. Presentation for bonding of garment side panels
WO2001087562A2 (en) * 2000-05-16 2001-11-22 Kimberly-Clark Worldwide, Inc. Method and apparatus for forming a lap seam
US7387148B2 (en) 2001-05-15 2008-06-17 Kimberly-Clark Worldwide, Inc. Garment side panel conveyor system and method
US7214174B2 (en) 2003-10-31 2007-05-08 Nordson Corporation Apparatus for folding a nonbonded nonwoven web
US20050096205A1 (en) * 2003-10-31 2005-05-05 Nordson Corporation Apparatus and methods for folding a nonbonded nonwoven web
US7008363B2 (en) * 2003-10-31 2006-03-07 Nordson Corporation Apparatus and methods for folding a nonbonded nonwoven web
US20050234412A1 (en) * 2004-04-19 2005-10-20 Curt G. Joa, Inc. Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US20050233881A1 (en) * 2004-04-19 2005-10-20 Curt G. Joa, Inc. Method and apparatus for reversing direction of an article
US7303708B2 (en) 2004-04-19 2007-12-04 Curt G. Joa, Inc. Super absorbent distribution system design for homogeneous distribution throughout an absorbent core
US7374627B2 (en) 2004-04-19 2008-05-20 Curt G. Joa, Inc. Method of producing an ultrasonically bonded lap seam
US8417374B2 (en) 2004-04-19 2013-04-09 Curt G. Joa, Inc. Method and apparatus for changing speed or direction of an article
US20100263987A1 (en) * 2004-04-19 2010-10-21 Curt G. Joa, Inc. Method and apparatus for changing speed or direction of an article
US20050230024A1 (en) * 2004-04-19 2005-10-20 Curt G. Joa, Inc. Method of producing an ultrasonically bonded lap seam
US7703599B2 (en) 2004-04-19 2010-04-27 Curt G. Joa, Inc. Method and apparatus for reversing direction of an article
US7861756B2 (en) 2004-04-20 2011-01-04 Curt G. Joa, Inc. Staggered cutting knife
US20050230037A1 (en) * 2004-04-20 2005-10-20 Curt G. Joa, Inc. Staggered cutting knife
US7640962B2 (en) 2004-04-20 2010-01-05 Curt G. Joa, Inc. Multiple tape application method and apparatus
US20050230449A1 (en) * 2004-04-20 2005-10-20 Curt G. Joa, Inc. Apparatus and method of increasing web storage in a dancer
US7708849B2 (en) 2004-04-20 2010-05-04 Curt G. Joa, Inc. Apparatus and method for cutting elastic strands between layers of carrier webs
US20050230056A1 (en) * 2004-04-20 2005-10-20 Curt G. Joa, Inc. Multiple tape application method and apparatus
US20060130964A1 (en) * 2004-04-20 2006-06-22 Curt G. Joa, Inc. Apparatus and method for cutting elastic strands between layers of carrier webs
US20070284048A1 (en) * 2004-04-20 2007-12-13 Curt G. Joa, Inc. Staggered cutting knife
US7638014B2 (en) 2004-05-21 2009-12-29 Curt G. Joa, Inc. Method of producing a pants-type diaper
US7909956B2 (en) 2004-05-21 2011-03-22 Curt G. Joa, Inc. Method of producing a pants-type diaper
US20050257881A1 (en) * 2004-05-21 2005-11-24 Curt G. Joa, Inc. Method of producing a pants-type diaper
US8557077B2 (en) 2004-05-21 2013-10-15 Curt G. Joa, Inc. Method of producing a pants-type diaper
US20110168326A1 (en) * 2004-05-21 2011-07-14 Curt G. Joa, Inc. Method of producing a pants-type diaper
US20050275148A1 (en) * 2004-06-15 2005-12-15 Curt G. Joa, Inc. Method and apparatus for securing stretchable film using vacuum
US7537215B2 (en) 2004-06-15 2009-05-26 Curt G. Joa, Inc. Method and apparatus for securing stretchable film using vacuum
US7811403B2 (en) 2005-03-09 2010-10-12 Curt G. Joa, Inc. Transverse tab application method and apparatus
US7452436B2 (en) 2005-03-09 2008-11-18 Curt G. Joa, Inc. Transverse tape application method and apparatus
US20070256777A1 (en) * 2005-03-09 2007-11-08 Curt G. Joa Inc. Transverse tab application method and apparatus
US20060201619A1 (en) * 2005-03-09 2006-09-14 Curt G. Joa, Inc. Transverse tape application method and apparatus
US8007484B2 (en) 2005-04-01 2011-08-30 Curt G. Joa, Inc. Pants type product and method of making the same
US7618513B2 (en) 2005-05-31 2009-11-17 Curt G. Joa, Inc. Web stabilization on a slip and cut applicator
US7533709B2 (en) 2005-05-31 2009-05-19 Curt G. Joa, Inc. High speed vacuum porting
US20060266466A1 (en) * 2005-05-31 2006-11-30 Curt G. Joa, Inc. Web stabilization on a slip and cut applicator
US20060266465A1 (en) * 2005-05-31 2006-11-30 Curt G. Joa, Inc. High speed vacuum porting
US20060277439A1 (en) * 2005-06-01 2006-12-07 Microsoft Corporation Code coverage test selection
US20070193856A1 (en) * 2006-02-17 2007-08-23 Curt G. Joa, Inc. Article transfer and placement apparatus with active puck
US7770712B2 (en) 2006-02-17 2010-08-10 Curt G. Joa, Inc. Article transfer and placement apparatus with active puck
US20070250032A1 (en) * 2006-03-08 2007-10-25 Curt G. Joa, Inc. Refastenable tab for disposable pant and methods for making same
US7780052B2 (en) 2006-05-18 2010-08-24 Curt G. Joa, Inc. Trim removal system
US9622918B2 (en) 2006-05-18 2017-04-18 Curt G. Joe, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US9433538B2 (en) 2006-05-18 2016-09-06 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web and formation of articles using a dual cut slip unit
US10456302B2 (en) 2006-05-18 2019-10-29 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US20070267149A1 (en) * 2006-05-18 2007-11-22 Curt G. Joa, Inc. Trim removal system
DE102006033539B4 (en) * 2006-07-20 2017-01-05 Gottlob Stahl Wäschereimaschinenbau GmbH Folding device for home textiles and similar materials
US20080050531A1 (en) * 2006-08-28 2008-02-28 Curt G. Joa, Inc. Apparatus and method for wetting a continuous web
US20080169373A1 (en) * 2007-01-12 2008-07-17 Curt G. Joa, Inc. Apparatus and methods for minimizing waste during web splicing
US8794115B2 (en) 2007-02-21 2014-08-05 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US9550306B2 (en) 2007-02-21 2017-01-24 Curt G. Joa, Inc. Single transfer insert placement and apparatus with cross-direction insert placement control
US20080196564A1 (en) * 2007-02-21 2008-08-21 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US7975584B2 (en) 2007-02-21 2011-07-12 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US9950439B2 (en) 2007-02-21 2018-04-24 Curt G. Joa, Inc. Single transfer insert placement method and apparatus with cross-direction insert placement control
US9944487B2 (en) 2007-02-21 2018-04-17 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US10266362B2 (en) 2007-02-21 2019-04-23 Curt G. Joa, Inc. Single transfer insert placement method and apparatus
US20080276439A1 (en) * 2007-05-09 2008-11-13 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8016972B2 (en) 2007-05-09 2011-09-13 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8398793B2 (en) 2007-07-20 2013-03-19 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations
US9387131B2 (en) 2007-07-20 2016-07-12 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automated threading and re-threading of web materials
US20090058835A1 (en) * 2007-09-05 2009-03-05 Himax Technologies Limited Method for transmitting image data to driver of display
US8182624B2 (en) 2008-03-12 2012-05-22 Curt G. Joa, Inc. Registered stretch laminate and methods for forming a registered stretch laminate
US10702428B2 (en) 2009-04-06 2020-07-07 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8172977B2 (en) 2009-04-06 2012-05-08 Curt G. Joa, Inc. Methods and apparatus for application of nested zero waste ear to traveling web
US8673098B2 (en) 2009-10-28 2014-03-18 Curt G. Joa, Inc. Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US20110094657A1 (en) * 2009-10-28 2011-04-28 Curt G. Joa, Inc. Method and apparatus for stretching segmented stretchable film and application of the segmented film to a moving web
US8460495B2 (en) 2009-12-30 2013-06-11 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US9089453B2 (en) 2009-12-30 2015-07-28 Curt G. Joa, Inc. Method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US20110155305A1 (en) * 2009-12-30 2011-06-30 Curt G. Joa, Inc. Apparatus and method for producing absorbent article with stretch film side panel and application of intermittent discrete components of an absorbent article
US8663411B2 (en) 2010-06-07 2014-03-04 Curt G. Joa, Inc. Apparatus and method for forming a pant-type diaper with refastenable side seams
US9603752B2 (en) 2010-08-05 2017-03-28 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic cuff defect correction
USRE48182E1 (en) 2010-08-05 2020-09-01 Curt G. Joa, Inc. Apparatus and method for minimizing waste and improving quality and production in web processing operations by automatic cuff defect correction
US9566193B2 (en) 2011-02-25 2017-02-14 Curt G. Joa, Inc. Methods and apparatus for forming disposable products at high speeds with small machine footprint
US9907706B2 (en) 2011-02-25 2018-03-06 Curt G. Joa, Inc. Methods and apparatus for forming disposable products at high speeds with small machine footprint
US8656817B2 (en) 2011-03-09 2014-02-25 Curt G. Joa Multi-profile die cutting assembly
USD684613S1 (en) 2011-04-14 2013-06-18 Curt G. Joa, Inc. Sliding guard structure
US8820380B2 (en) 2011-07-21 2014-09-02 Curt G. Joa, Inc. Differential speed shafted machines and uses therefor, including discontinuous and continuous side by side bonding
US10751220B2 (en) 2012-02-20 2020-08-25 Curt G. Joa, Inc. Method of forming bonds between discrete components of disposable articles
US9809414B2 (en) 2012-04-24 2017-11-07 Curt G. Joa, Inc. Elastic break brake apparatus and method for minimizing broken elastic rethreading
US11034543B2 (en) 2012-04-24 2021-06-15 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
US9908739B2 (en) 2012-04-24 2018-03-06 Curt G. Joa, Inc. Apparatus and method for applying parallel flared elastics to disposable products and disposable products containing parallel flared elastics
US9283683B2 (en) 2013-07-24 2016-03-15 Curt G. Joa, Inc. Ventilated vacuum commutation structures
USD703712S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD704237S1 (en) 2013-08-23 2014-05-06 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703247S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703248S1 (en) 2013-08-23 2014-04-22 Curt G. Joa, Inc. Ventilated vacuum commutation structure
USD703711S1 (en) 2013-08-23 2014-04-29 Curt G. Joa, Inc. Ventilated vacuum communication structure
US9289329B1 (en) 2013-12-05 2016-03-22 Curt G. Joa, Inc. Method for producing pant type diapers
CN105883107A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Pushing plate type vacuum adsorbing and folding device for wiping cloth for agricultural machine
CN105883099A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Push plate blowing type folding device for wiping cloth for farm machine
CN105883473A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Guide folding absorbing conveying device of wiping cloth for agricultural machine
CN105883103A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Air blowing type folding device of wiping cloth for agricultural machine
CN105883100A (en) * 2014-12-26 2016-08-24 无锡市湖山植保机械厂 Swinging air blowing type folding device of wiping cloth for agricultural machine
US10494216B2 (en) 2015-07-24 2019-12-03 Curt G. Joa, Inc. Vacuum communication apparatus and methods
US10633207B2 (en) 2015-07-24 2020-04-28 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
US10167156B2 (en) 2015-07-24 2019-01-01 Curt G. Joa, Inc. Vacuum commutation apparatus and methods
CN108975043A (en) * 2018-08-07 2018-12-11 佛山市宾宏设备有限公司 A kind of ruler angle cloth folding machine
US11737930B2 (en) 2020-02-27 2023-08-29 Curt G. Joa, Inc. Configurable single transfer insert placement method and apparatus
CN112914322A (en) * 2021-01-30 2021-06-08 常州聚锦自动化设备有限公司 Novel bedspread production process

Also Published As

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GB1135658A (en) 1968-12-04
SE324346B (en) 1970-06-01
NL6711321A (en) 1968-02-19
FR1533775A (en) 1968-07-19
DE1585600A1 (en) 1971-05-19

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