US3887414A - Envelope window patching - Google Patents

Envelope window patching Download PDF

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Publication number
US3887414A
US3887414A US345165A US34516573A US3887414A US 3887414 A US3887414 A US 3887414A US 345165 A US345165 A US 345165A US 34516573 A US34516573 A US 34516573A US 3887414 A US3887414 A US 3887414A
Authority
US
United States
Prior art keywords
patch
window
blank
drum
web
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US345165A
Other languages
English (en)
Inventor
Robert Cohn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Champion International Corp
Original Assignee
Champion International Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Champion International Corp filed Critical Champion International Corp
Priority to US345165A priority Critical patent/US3887414A/en
Priority to DE2414525A priority patent/DE2414525C3/de
Priority to JP3383074A priority patent/JPS536905B2/ja
Priority to GB1327174A priority patent/GB1467826A/en
Priority to FR7410343A priority patent/FR2223181B1/fr
Priority to IT20578/74A priority patent/IT1007628B/it
Priority to BE144612A priority patent/BE815385A/xx
Application granted granted Critical
Publication of US3887414A publication Critical patent/US3887414A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/82—Forming or attaching windows
    • B31B70/826—Forming or attaching windows involving applying window patches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2150/00—Flexible containers made from sheets or blanks, e.g. from flattened tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B31B2160/104—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents obtained from rhombus shaped sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/81—Forming or attaching accessories, e.g. opening devices, closures or tear strings
    • B31B70/82—Forming or attaching windows
    • 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
    • Y10S493/916—Pliable container
    • Y10S493/917—Envelope
    • Y10S493/919—Envelope having window
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1304—Means making hole or aperture in part to be laminated
    • Y10T156/1309—Means making hole or aperture in part to be laminated and securing separate part over hole or aperture
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/12—Surface bonding means and/or assembly means with cutting, punching, piercing, severing or tearing
    • Y10T156/1317—Means feeding plural workpieces to be joined
    • Y10T156/1322—Severing before bonding or assembling of parts
    • Y10T156/1339—Delivering cut part in sequence to serially conveyed articles
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1741—Progressive continuous bonding press [e.g., roll couples]

Definitions

  • This invention relates to improvements in a method and apparatus for applying a window patch to a blank or web from which can be made a windowed container such as a window envelope.
  • One aspect of the invention is to use a vacuum to hold the patch and web or container blank in position relative to each other.
  • An aspect of the invention is to use all rotary means such as a vacuum drum and a rotary heated roll in combination, in connection with which the same will be described for applying a patch to an envelope blank by way of example, it being understood that other applications of the invention such as to webs from which blanks for forming into containers of various types are to be cut are contemplated and embraced herein.
  • the invention is limited only to the extent that the container stock or blanks must be flexible enough to respond readily to the various manipulative acts or steps comprising the hereinafter described method.
  • the present invention provides an advance over Gray in that a completely rotary system is provided whereby smoother and faster running is achieved. Moreover, a cylindrical vacuum drum is used to hold the blank and patch in register with each other during the time heat is applied. The convex surface of the drum acts as a support for the blank-patch assembly.
  • the blank and patch are placed carefully relative to each other, it is unnecessary to precisely place the blank and patch relative to the drum, as with Gray and his concavesupport.
  • the patch is pulled into the window of the blank to thus be spaced away from the heat source and to avoid sticking to the vacuum roll.
  • the present invention has consistently produced windowed containers where the windows are adhered right up to the edge of the hole in the envelope blank on the outside and are adhered right up to the edge of the patch on the inside of the container.
  • FIG. 1 is a schematic side view of a patch applying machine showing the rotating elements of the invention
  • FIG. 2 is a view of an envelope blank and window patch as seen from the inside of the envelope
  • FIG. 3 is an isometric view of an assembled envelope with a window patch in place
  • FIG. 4 is a schematic axial view along 4 4 of FIG. 1;
  • FIG. 5 schematically shows details of one embodiment of a patch feeding means and cooled vacuum roll as used with and/or in the FIG. 1 assembly.
  • the well-known window envelope used as an example of one product to which the invention pertains comprises basically three elements an envelope blank 1 folded in an appropriate fashion, a window patch 2 and adhesive 3 to hold the patch on the blank.
  • the patch obviously is secured in place in register and over the window 4 on the envelope.
  • the window patch 2 has for an adhesive 3 a coating of hot melted adhesive, preferably formed from Elvax either alone or extended by various waxes, microcrystalline waxes, and similar dilutants.
  • Elvax is the trademark for a vinyl resin copolymer made by E. I. duPont de Neumours and Company which broadly speaking is a copolymer of ethylene and vinyl acetate.
  • a preferred hot melt formulation consists in 30 percent by weight of either of the grades of Elvax mixed thoroughly with about 70 percent by weight of paraffin wax.
  • Alternative hot melt mixtures can be formulated in any of the known manners. A thorough discussion of the 30/70 formulation, other formulae, and uses for Elvax is found in the July, 1961 Modern Packaging, pages 134 et seq.
  • Alternative mixtures may include other waxes and polymers, anti-oxidant, anti-scorching or clarity preservers, or release agents.
  • the preferred hot melt adhesive has a softening point in the range from about 250 to about 300 F. and is applied to the window patch material by conventional equipment prior to the instant patching operation.
  • the window patch for such an envelope by way of example is of a material that is selected from the group comprising or consisting of transparent and translucent adherable films and webs capable of withstanding the,
  • the envelope blank is made of ordinary envelope paper which is a sized uncoated grade of quality paper and which is of such basis weight as to be flexible enough to permit of the manipulative steps of the method, as must be any base stock or blank employed in the operations to be subsequently described in greater detail.
  • the apparatus according to the present invention (FIGS. 1,4) comprises a water cooled vacuum drum 5 which is supported on a frame 6 (that is between the side frames 6) to rotate substantially adjacent to a heated roll 8 which is also supported on the frame 6.
  • Vacuum drums and their construction are old and well known in the envelope making art.
  • Vacuum drum 5 is a hollow cylindrical shellvAs best seen in FIG. 5 the drum comprises a cylindrical shell having a plurality of radially extending vacuum ports 9 arranged around its face.
  • Shell 10 is preferably of aluminum.
  • Formed within the wall of the shell are a plurality of vacuum passages 11 each of which is connected to a number of the ports 9.
  • the drum is, as is conventional, connected by suitable means such as a rotary coupling or shaft seal to a suitable vacuum source such as a vacuum pump, steam jet ejector, or the like.
  • the vacuum established through ports 9 are employed to hold the blank and the patch on the drum in register with each other from the time of depositing the patch in register over the window within the nip between vacuum roll 5 and the vacuum transfer roll 12. In some cases it may be necessary to provide additional Heating and/or auxiliary cooling, This may readily be accomplished as by providing a supplemental heating or cooling roll 15. However, on most occasions, the roll 15 will not be needed and for this reason is shown in dotted lines on FIG. 5.
  • the interior of the drum 5 is connected by appropriate means such as tubing, a hollow shaft, and rotary coupling or shaft seal to a source of cooling fluid, preferably cooling water.
  • a source of cooling fluid preferably cooling water.
  • the blank feeding means illustrated in FIG. 5 is the preferred embodiment although various other types of patch feeders could be employed. Basically, this involves a system for unwinding a web of patch material, such as glassine or Mylar, directing it against a knife or other cutting means where individual patches are severed, and then using the vacuum transfer roll 12 to feed the patch to the envelope blank.
  • the system is coordinated with the feeding of the individual blanks or a web containing a series of blanks so that the patch arrives means of a pair of draw rolls 17.
  • the draw rolls form a nip or turning couple and are pressed against each other hard enough that they firmly engagethe patch material 2A, unwinding it from the roll or reel 2A, and feeding it to a rotary knife 18 which cooperates with a stationary knife 19 to sever individual window patches from the web.
  • Each patch 2 is severed at the time enough of it has fed past the rotaryknife I8, 19 to form a window at which time it engages the vacuum transfer roll 12 which is an ordinary vacuum roll of the sort well known in the envelope machine industry.
  • the vacuum rolls 5 and 12 are of conventional construction so far as the vacuum portions are concerned. They use rotary shaft seals and couplings as already mentioned for the feeding of air through the vacuum passages to a vacuum pump or the like.
  • the various vacuum ports 9 in both rolls are turned on and shut off in a predetermined timed sequence controlled by valve plates or some other conventional timing device which need not be belabored further at this point.
  • parts A in the vacuum drum 5 are turned on as they reach the position A which is where the envelope blank is first fed to the drum.
  • These ports stay on, pulling a vacuum through them and thereby retaining the blank thereon until after all the operations of affixing the window have been completed.
  • the envelope blank with window is, after completing such operations, removed from the drum 5 at a position E where the ports 9 are turned off to free the windowed blank for such as are required subsequent operations complete the gumming, flap folding, etc.
  • the vacuum transfer roll 12 has its ports turned on at approximately position F so that a severed window patch can be received from the knife 18, 19, retained on the blank for a time sufficient to seat it or transfer it down to the position B where it is brought into the nip between the two vacuum rolls 5, l2 and placed in register on the envelope window.
  • the vacuum through the ports of the vacuum transfer roll 12 is shut off since this roll has completed its function of transferring the window patch. Release of the patch by the drum 12 and its retention by the vacuum existing through ports 9 on the water cooled drum surface 10 is thus affected.
  • the vacuum remains turned off on the ports of the vacuum roll 12 for the time it takes to travel (rotate) from position B to position F and then is on for the rotation from F to B.
  • vacuum is turned on as the ports 9 reach point A, remains on at the nip B where the patch is received and continues on until the point C at which time heat is applied from the heated roll 8.
  • supplemental heating or cooling is needed, of course, the vacuum stays on during those functions whether it is prior to or after the heated roll 8.
  • the vacuum through ports 9 is kept on at least while the ports pass the position D and until the ports have reached the position E where the vacuum, by a suitable control means such as the valve plates mentioned in the abovementioned references, is turned off and the envelope with its now affixed patch is released for manipulation through the remainder of the. envelope manufacturing functions.
  • the process for applying a window patch 3 to an envelope or web blank having a window cut out comprises the steps of feeding a strip 2A of hot melt coated transparent or translucent window patch material; severing a patch 2 from said strip by cutting off a predetermined length of it with a rotary knife 18; meanwhile feeding the envelope blank 1 to the rotating cooled vacuum drum 5 and securing same on the surface thereof by vacuum means; depositing at position B the patch 2 over the window 4 in the blank and holding it in place there by the vacuum drawn through the ports 9 in the vacuum roll, thereby pulling the patch down into the window opening (e.g. FIG.
  • the patch be on the outside or top of the envelope window as shown in FIGS. 2 and 3 because the vacuum roll 5 is thereby enabled to suck the patch down into the window 4 and actually out of contact with the heated roll 8 except for the border of the patch which overlies the areas immediately adjacent the marginal edges of the window to which the patch is ultimately adhered.
  • This feature thereby reduces the amount of heat transferred between the heated roll 8 and the window portion of the patch while at the same time, due in part to the increased thickness of the patch where it overlies the envelope blank around the window, heat is applied directly to the patch and to the envelope thereby achieving the requisite adhesion by means of melting the hot melt adhesive.
  • the heated roll 8 is preferably electrically heated and has an outer cylindrical surface made of aluminum. However, a heated ceramic roll may on some occasions be selected as conditions may dictate.
  • Thepressure with which the heated roll 8 is urged against the vacuum roll is also extremely important. A heavy pressure is desired. Where the heated roll is merely swung freely on arms or brackets 22, there ordinarily would not be enough pressure along the line of contact in the nip C to achieve the desired amount of heat transfer and adhesion. Therefore, some sort of positive pressure inducing means such as a counterweight 23 on the mounting arm 22A should be used if the weight of the roll itself will not produce the desired pressure. Too, as is obvious. various other pressure applying means, such as springs, air cylinders, etc., may readily be employed to produce the desired results.
  • artificial cooling is meant intentionally supplying a cooling medium in addition to that resulting from natural forces such as conduction, convection, and/or radiation resulting from conditions of operation (e.g. rotational speed, surface temperature) and ambient conditions (eg room temperature).
  • conditions of operation e.g. rotational speed, surface temperature
  • ambient conditions e.g room temperature
  • the above machinery may be driven by an electrical motor which is connected by a suitable transmission to the various drums and rollers.
  • Belt or chain drives are preferred as the most uncomplicated drive means because one motor can be connected to drive and set up and keep the various timed relationships between the moving elements with relative ease.
  • a process of applying a window patch to a container blank such as an envelope or web for formation into a window container and having a window cut out comprising the steps of A. Feeding a strip of hot melt coated transparent or translucent window patch material;
  • a process of applying a window patch according to claim 1 wherein the step of feeding comprises the feeding of a strip of hot melt coated transparent polyethylene terephlhalate film to subsequently define a window patch applied to said blank or web.
  • a process of applying a window patch according to claim 1 wherein said step of feeding further comprises the feeding of a strip of hot melt coated transparent glassine to subsequently define a window patch applied to said blank or web.
  • a process according to claim 1 including the further step of artificially cooling the vacuum drum.
  • step of cooling includes supplying cooling water to the drum interior.
  • Apparatus for applying by heat sealing a window patch to a stock material having a window cut out area therein, such as an envelope blank or the like comprisa rotatable, cylindrical, hollow drum having a plurality of suction holes dispersed uniformly throughout at least a portion of its cylindrical surface to hold the windowed web or blank stock material in position on the drum surface throughout its entire area; means to cool the drum by a cooling fluid passing through the interior of said drum, and
  • rotary means to feed a window patch to and deposit it on the windowed web or blank material in register with the window cut out therein, said patch being held in position throughout its entire surface area within the marginal confines of said window cut out by vacuum drawn through said suction holes, and with its marginal edges overlying the marginal areas of said stock material circumscribing said out out;
  • a heated cylindrical roll rotatably supported with its cylindrical surface adjacent the cylindrical surface of said drum which carries said blank and said patch, so that the heated roll contacts only the overlapped marginal edge areas of said patch and said stock material circumscribing said window cut out.

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  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)
US345165A 1973-03-26 1973-03-26 Envelope window patching Expired - Lifetime US3887414A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US345165A US3887414A (en) 1973-03-26 1973-03-26 Envelope window patching
DE2414525A DE2414525C3 (de) 1973-03-26 1974-03-26 Verfahren und Vorrichtung zum Aufbringen einer Fensterabdeckung auf einem Umschlag
JP3383074A JPS536905B2 (it) 1973-03-26 1974-03-26
GB1327174A GB1467826A (en) 1973-03-26 1974-03-26 Manufacturing of window envelopes and like articles
FR7410343A FR2223181B1 (it) 1973-03-26 1974-03-26
IT20578/74A IT1007628B (it) 1973-03-26 1974-04-08 Procedimento ed apparecchio per li applicazione di elementi di chiusura trasparenti su buste a finestra
BE144612A BE815385A (fr) 1973-03-26 1974-05-22 Procede et equipement pour la fabrication d'enveloppes a fenetre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345165A US3887414A (en) 1973-03-26 1973-03-26 Envelope window patching

Publications (1)

Publication Number Publication Date
US3887414A true US3887414A (en) 1975-06-03

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ID=23353826

Family Applications (1)

Application Number Title Priority Date Filing Date
US345165A Expired - Lifetime US3887414A (en) 1973-03-26 1973-03-26 Envelope window patching

Country Status (7)

Country Link
US (1) US3887414A (it)
JP (1) JPS536905B2 (it)
BE (1) BE815385A (it)
DE (1) DE2414525C3 (it)
FR (1) FR2223181B1 (it)
GB (1) GB1467826A (it)
IT (1) IT1007628B (it)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061527A (en) * 1977-04-12 1977-12-06 Moore Business Forms, Inc. Apparatus for applying patches to a continuous web
US4061521A (en) * 1976-07-19 1977-12-06 Color Communications, Inc. Method and apparatus for manufacture of swatch bearing sheets
US4960480A (en) * 1988-03-08 1990-10-02 Fuji Photo Film Co., Ltd. Method of and system for assembling magnetic disk cartridge
US4961800A (en) * 1988-07-18 1990-10-09 The Dow Chemical Company Non-dusting window envelope film utilizing a waxy anti-flecking agent
US5458938A (en) * 1993-08-03 1995-10-17 Minnesota Mining And Manufacturing Company Mounting laminate having recessed adhesive areas
US5591297A (en) * 1994-11-17 1997-01-07 The Procter & Gamble Company Process and apparatus for making and incorporating acquisition/distribution inserts into absorbent cores
NL1008291C2 (nl) * 1998-02-12 1999-08-13 Stronghold Paper Group Bv Enveloppe en werkwijze voor het vervaardigen daarvan.
US6530869B2 (en) * 2000-01-21 2003-03-11 Winkler + Duennebier Ag Method and apparatus for the production of mailing bags including envelopes
DE202007001348U1 (de) 2007-01-24 2008-05-29 Kohmann Gmbh & Co. Kg Maschinenbau Vorrichtung zum Aufbringen von Material auf ein Substrat im Fließbandverfahren sowie Fenstersiegelanlage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO126596A0 (en) 1996-07-26 1996-08-22 Resmed Limited A nasal mask and mask cushion therefor
DE102005005215B3 (de) * 2005-02-03 2006-04-06 Schröder-Frerkes, Julius, Dr.-Ing. Verfahren und Vorrichtung zum Fenstereinschweißen in Faltschachtelzuschnitten

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072875A (en) * 1931-09-25 1937-03-09 Robert L Gray Window envelope and method of making the same
US2257829A (en) * 1937-04-21 1941-10-07 Winkler Alfred Method and apparatus for forming windows in blanks for envelopes and other articles
US2794485A (en) * 1954-12-24 1957-06-04 Bemis Bro Bag Co Seaming apparatus
US3416414A (en) * 1967-07-20 1968-12-17 Eliot S. Smithe Multipurpose suction roll for envelope making machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2072875A (en) * 1931-09-25 1937-03-09 Robert L Gray Window envelope and method of making the same
US2257829A (en) * 1937-04-21 1941-10-07 Winkler Alfred Method and apparatus for forming windows in blanks for envelopes and other articles
US2794485A (en) * 1954-12-24 1957-06-04 Bemis Bro Bag Co Seaming apparatus
US3416414A (en) * 1967-07-20 1968-12-17 Eliot S. Smithe Multipurpose suction roll for envelope making machines

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061521A (en) * 1976-07-19 1977-12-06 Color Communications, Inc. Method and apparatus for manufacture of swatch bearing sheets
US4061527A (en) * 1977-04-12 1977-12-06 Moore Business Forms, Inc. Apparatus for applying patches to a continuous web
US4960480A (en) * 1988-03-08 1990-10-02 Fuji Photo Film Co., Ltd. Method of and system for assembling magnetic disk cartridge
US4961800A (en) * 1988-07-18 1990-10-09 The Dow Chemical Company Non-dusting window envelope film utilizing a waxy anti-flecking agent
US5458938A (en) * 1993-08-03 1995-10-17 Minnesota Mining And Manufacturing Company Mounting laminate having recessed adhesive areas
US5591297A (en) * 1994-11-17 1997-01-07 The Procter & Gamble Company Process and apparatus for making and incorporating acquisition/distribution inserts into absorbent cores
US5837087A (en) * 1994-11-17 1998-11-17 The Procter & Gamble Company Process for making and incorporating acquisition/distribution inserts into absorbent cores
NL1008291C2 (nl) * 1998-02-12 1999-08-13 Stronghold Paper Group Bv Enveloppe en werkwijze voor het vervaardigen daarvan.
US6530869B2 (en) * 2000-01-21 2003-03-11 Winkler + Duennebier Ag Method and apparatus for the production of mailing bags including envelopes
DE202007001348U1 (de) 2007-01-24 2008-05-29 Kohmann Gmbh & Co. Kg Maschinenbau Vorrichtung zum Aufbringen von Material auf ein Substrat im Fließbandverfahren sowie Fenstersiegelanlage
DE102008005950A1 (de) 2007-01-24 2008-08-07 Kohmann Gmbh & Co. Kg Maschinenbau Vorrichtung und Verfahren zum Aufbringen von Material auf ein Substrat im Fließbandverfahren sowie Fenstersiegelanlage

Also Published As

Publication number Publication date
FR2223181B1 (it) 1978-12-29
JPS536905B2 (it) 1978-03-13
BE815385A (fr) 1974-09-16
FR2223181A1 (it) 1974-10-25
GB1467826A (en) 1977-03-23
DE2414525B2 (de) 1977-09-22
JPS5077178A (it) 1975-06-24
DE2414525A1 (de) 1974-10-10
IT1007628B (it) 1976-10-30
DE2414525C3 (de) 1978-05-11

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