US2232640A - Method of making articles from heat fusible sheet material - Google Patents
Method of making articles from heat fusible sheet material Download PDFInfo
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- US2232640A US2232640A US24735938A US2232640A US 2232640 A US2232640 A US 2232640A US 24735938 A US24735938 A US 24735938A US 2232640 A US2232640 A US 2232640A
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- Prior art keywords
- sheets
- articles
- edges
- stack
- heat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/137—Beaded-edge joints or bead seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
- B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
- B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
- B29C66/91421—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the joining tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/705—Books, albums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/705—Books, albums
- B29L2031/7052—Book covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7128—Bags, sacks, sachets
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- 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
- B31B70/60—Uniting opposed surfaces or edges; Taping
- B31B70/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure
- B31B70/643—Uniting opposed surfaces or edges; Taping by applying heat or pressure on piled sheets, e.g. sealing bags arranged in a pile
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- 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
- Y10T156/1054—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing and simultaneously bonding [e.g., cut-seaming]
Definitions
- This invention relates to methods of an apparatus for making articles such as envelopes, bags, shoulder length garment covers, umbrella covers and the like articles, out of pieces of sheet material. It is particularly directed to a process of heat sealing or seaming the meeting edges of pieces of heat fusible sheet material, such as hydrochlorinated rubber, or the like material which becomes adhesive or plastic when heated, whereby a plurality of sheets are attached together to form a complete article.
- pieces of heat fusible sheet material such as hydrochlorinated rubber, or the like material which becomes adhesive or plastic when heated
- An object of this invention is to provide a highly improved process of the character described for simultaneously making a plurality of such articles in a stack, while keeping the articles separate from one another, and whereby said articles are uniform in size.
- Envelopes, shoulder length garment covers, umbrella covers, and the like flat articles made of sheets of film material may be advantageously shipped in stacks.
- the sheets of paper prevent static electricity between the articles, and also prevent the articles from sticking together. It is therefore a further object of this invention to provide a process of the character described for simultaneously making a stack of flat articles out of film material, together with sheets of paper between the articles ready for shipping, whereby to make it unnecessary to place sheets of paper between the articles after the articles are made.
- Another object of this invention is to provide as a highly improved article made of sheets of transparent heat fusible material, such as a book cover, composed of two superimposed vertical sheets of transparent heat fusible material, the longitudinal registering edges of which are fused together by heating, whereby to form a book cover which will fit books of various widths and thickness.
- Still another object of this invention is to provide an improved process of the character de- 5 scribed, particularly adapted for quantity production, and reducing the cost of manufacture by saving labor and time, for the reason that the articles may be made uniformly, and in large quantities ready for shipment, and not individuso ally, as was the practice heretofore.
- the invention accordingly consists in the combination of steps, features of construction, com- 55 binations of elements, and arrangement of parts which will be exemplified in the method and construction hereinafter described, and of which the scope of application will be indicated in the following claims.
- Fig. 1 is a perspective view illustrating a step in the process embodying the invention
- Fig. 2 is a top plan view illustrating a further 10 step in the improved process
- Fig. 3 is a cross-sectional view taken on line 33 of Fig. 2;
- Fig. 4 is an enlarged, cross-sectional view through a stack of articles made in accordance 15 with the invention.
- Fig. 5 is a partial, perspective view of one of said articles with parts in cross-section;
- Fig. 6 is a perspective view of a complete article made in accordance with the process em- 20 bodying the invention.
- Fig. '7 is an elevational, cross-sectional view illustrating a modified apparatus and process embodying the invention
- Fig. 8 is a perspective view of a book cover embodying the invention, and made in accordance with the improved process;
- Fig. 9 is a perspective view of a book with the book cover thereon;
- Fig. 10 is a cross-sectional view taken on line lli--l0ofFig.9;and
- Fig. 11 is a perspective view of the closed book.
- Fig. 6 of the drawings an envelope ill made in accordance with the process embodying the invention.
- the envelope III is made of two, similar, superimposed sheets ll, of heat fusible material, such as hydrochlorinated rubber, known as Pliofilm, or the like material which becomes adhesive and plastic upon application of heat.
- heat fusible material such as hydrochlorinated rubber, known as Pliofilm, or the like material which becomes adhesive and plastic upon application of heat.
- the sheets H are seamed or sealed at the side edges l2, and at its rear edge IS, the envelope being open at one end.
- the sheets II are fused or attached together at their outer edges I2 and I! by the application of heat to the edges of said sheets, in the manner described hereinafter.
- the drawings show sheets ll somewhat separated for the purpose of illustration only, said sheets in fact being in contact.
- the dominant feature of the present invention is the provision of a method of simultaneously making a stack or quantity of envelopes It, or other articles made of sheets of heat fusible material, seamed together by application of heat.
- a roll IS There is simultaneously unwound from a roll IS, a sheet I6 of paper, and a pair of rolls I 1, sheets II of heat fusible material, such as Pliofilm.
- the sheets i6 and III are unwound into superimposed relation, and may be cut down along lines 20, to sizes easy to handle.
- the cut batches are stacked one on top of the other, to produce a stack consisting of a sheet of paper for every two contacting sheets of Pliofilm.
- the stack may then be cut by suitable cutting blades or dies, to the correct size of envelope desired, to produce a stack 22, shown in Figs. 2 and 3 of the drawings.
- the stack 22 in Figs. 2 and 3 comprises a pair of adjacent contacting sheets II of Pliofilm" between sheets 23 of paper, or the like material which is not fusible by heat and which is more resistant to heat than sheets ll.
- One end of the stack 22 is then moved into contact with a vertical, elongated, electrically heated plate or member 25, so that the end edges of adjacent pairs of sheets ll may become fused together to form the fused ends l3 of the envelope Hi.
- the stack need be held against the heater 25 only for several seconds, the heat being sufiicient to fuse the edges of sheets II, but insufilcient to scorch the paper.
- the paper prevents the heat from penetrating too deeply so that only the outer edges of the sheets II are fused together.
- the stack is held against the heater for a short time, the length of time and the temperature of the heater determining the width of the fused edge. It has been found that with a temperature of about 300 degrees Fahrenheit, about one-sixty fourth of an inch in width will become fused.
- the stack 22 may then be manipulated to bring a side edge of the stack into contact with the'heater 25, to permit the side edges of adjacent sheets of Pliofilm to fuse together, for producing seamed or fused side edges II.
- the stack may then be moved and turned around to bring the opposite side edge into contact with the heated plate, so that the meeting edges of adjacent sheets II are fused together to produce another sealed edge l2, to complete the envelope.
- One edge of the envelopes may be left open, as shown in Fig. 6 of the drawing.
- the sheets of paper between the contacting pairs of sheets ll of Pliofilm keep the contacting pairs of sheets of Pliofilm separate from adjacent pairs of sheets of Pliofilm so that the edges of only contacting sheets of Pliofilm will fuse together. Thus, one pair of contacting sheets of Pliofilm cannot become fused to another pair of sheets of Pliofilm because of the interposed sheets of paper 23.
- the envelopes l may be made in large quantities, in stacks, and with interposed sheets of paper, exactly in the way they may most advantageously be shipped.
- the sheets of paper between adjacent envelopes make it easier to handle the envelopes, and easier to pick up individual envelopes oifthe stack.
- the sheets of paper eliminate static between the envelopes, and prevent adjacent envelopes from sticking together.
- the sheets are elongated and of narrower width, and are sealed at their long edges only, thus producing an article open at both ends, so that an umbrella or other article may be passed through said article.
- the sheets may be cut by a die having the correct shape for producing such articles, and the stack of sheets may be applied to a heater having the shape of the portion of the edges which are to be fused. If desired the stack may be moved past a fixed heated surface to heat seal the edge of the stacked articles.
- Fig. 7 there is illustrated a step in a modified process embodying the invention.
- the stack of sheets of Pliofilm With the sheets of paper interposed between alternate sheets of Pliofilm, is cut by an electrically heated die 30, so that the meeting edges of contacting sheets of Pliofilm will become fused by reason of contact with the heated die.
- the paper sheets may be replaced by any sheet material which will not fuse or stick to the sheets of Pliofilm, and which will resist heat at temperatures necessary to fuse the Piiofilm" sheets, so as not to scorch or burn.
- Such sheets furthermore, are preferably nonmetallic so as not to conduct heat because it is desired to fuse only the outer edge of the Pliofilm.
- the paper being a poor conductor of heat does not conduct the heat to any substantial degree inwardly of the outer edges of the sheets of Pliofilm.
- the Pliofilm sheets may be replaced by sheets having coatings of heat fusible material on the contacting surfaces thereof.
- Fig. 8 there is shown a book cover embodying the invention, and made in accordance with the improved process described hereinabove.
- shown in Fig. 8 comprises superimposed top and bottom similar sheets 32, the longitudinal edges whereof are fused together, as at 33, by heat.
- the book covers may be made in stacks with intervening sheets of paper, in the manner described hereinabove.
- are open.
- the book cover may be folded over the rear of a book, as shown in Figs. 9, 10 and 11, to receive the hard outer covers 34 of the book 35.
- should be made to fit a book of a given height, that is, the height of the book should be somewhat less than the height of the book cover 3
- the book cover 3i however can fit books of various widths and thickness.
- is preferably transparent so that the printing on the outside of the book can be read. Said book cover 3
- is preferably made of hydrochlorinated rubber or Pliofllm, which will not crack upon the book being opened and closed. The same is sanitary and washable, and may be manufactured economically in large quantities.
- is a flattened tube, as shown in Fig. 8 of the drawings.
- An umbrella cover may be made similar to the book cover shown in Fig. 8, except that it is longer and narrower.
- the flattened tube may be opened up so that the umbrella may be inserted therethrough.
- a process of the character described consisting in stacking sheets of hydrochlorinated rubber and paper, with paper being interposed between contacting sheets of hydrochlorinated rubber, and then cutting through the stack with a heated die, whereby the edges of the contacting sheets at the cut edges of the stack will become fused and attached together.
- a process of the character described consisting in stacking a plurality of paiis of contacting sheets of thermoplastic material, with nonthermoplastic material between adjacent pairs of contacting sheets and cutting through the stack with a heated die, whereby the edges of the contacting sheets of thermoplastic material at the cut edges of the stack become fused and attached together.
- a method of the character described consisting in stacking a plurality of units together each including two sheets of thermoplastic ma.- terial, interposing non-thermoplastic insulating material between adjacent units and cutting through the stack with a heated die to heat seal the cut edges of the imits.
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Description
Feb. 18, 1941. n. B. SCHWARTZMAN METHOD OF MAKING ARTICLES FROM HEAT FUSIBLE SHEET MATERIAL Filed Dec. 23, 1938 ZSheets-Sheet l BY L Q {QW TTORNEY 1941- D. B. SCHWARTZMAN 2,232,640
METHOD OF MAKING ARTICLES FROM HEAT FUSIBLE SHEET MATERIAL Filed Dec. 23, 1938 2 Sheets-Sheet 2 INV EN TOR 5 C H WOAT ZM/i/V D4/V/EZ 5.
BY K7 2 a ATTORNEY Patented Feb. 18, 1941 UNITED STATES METHOD OF MAKING ARTICLES FROM HEAT FUSIBLE SHEET MATERIAL Daniel B. Schwartzman, Jersey City, N. 1., as-
signor to Protex Products Company, Jersey City,
N. 1., a corporation Application December 23, 1938, Serial No. 247,359
3 Claims.
This invention relates to methods of an apparatus for making articles such as envelopes, bags, shoulder length garment covers, umbrella covers and the like articles, out of pieces of sheet material. It is particularly directed to a process of heat sealing or seaming the meeting edges of pieces of heat fusible sheet material, such as hydrochlorinated rubber, or the like material which becomes adhesive or plastic when heated, whereby a plurality of sheets are attached together to form a complete article.
An object of this invention is to provide a highly improved process of the character described for simultaneously making a plurality of such articles in a stack, while keeping the articles separate from one another, and whereby said articles are uniform in size.
Envelopes, shoulder length garment covers, umbrella covers, and the like flat articles made of sheets of film material may be advantageously shipped in stacks. To facilitate removal of the articles from the stack, one at a time, it is advantageous to interpose a sheet of paper between adiacent articles. The sheets of paper prevent static electricity between the articles, and also prevent the articles from sticking together. It is therefore a further object of this invention to provide a process of the character described for simultaneously making a stack of flat articles out of film material, together with sheets of paper between the articles ready for shipping, whereby to make it unnecessary to place sheets of paper between the articles after the articles are made. Another object of this invention is to provide as a highly improved article made of sheets of transparent heat fusible material, such as a book cover, composed of two superimposed vertical sheets of transparent heat fusible material, the longitudinal registering edges of which are fused together by heating, whereby to form a book cover which will fit books of various widths and thickness.
Still another object of this invention is to provide an improved process of the character de- 5 scribed, particularly adapted for quantity production, and reducing the cost of manufacture by saving labor and time, for the reason that the articles may be made uniformly, and in large quantities ready for shipment, and not individuso ally, as was the practice heretofore.
Other objects of this invention will in part be obvious and in part hereinafter pointed out.
The invention accordingly consists in the combination of steps, features of construction, com- 55 binations of elements, and arrangement of parts which will be exemplified in the method and construction hereinafter described, and of which the scope of application will be indicated in the following claims.
In the accompanying drawings in which is 5 shown various possible illustrative embodiments of this invention,
Fig. 1 is a perspective view illustrating a step in the process embodying the invention;
Fig. 2 is a top plan view illustrating a further 10 step in the improved process;
Fig. 3 is a cross-sectional view taken on line 33 of Fig. 2;
Fig. 4 is an enlarged, cross-sectional view through a stack of articles made in accordance 15 with the invention;
Fig. 5 is a partial, perspective view of one of said articles with parts in cross-section;
Fig. 6 is a perspective view of a complete article made in accordance with the process em- 20 bodying the invention;
Fig. '7 is an elevational, cross-sectional view illustrating a modified apparatus and process embodying the invention;
Fig. 8 is a perspective view of a book cover embodying the invention, and made in accordance with the improved process;
Fig. 9 is a perspective view of a book with the book cover thereon;
. Fig. 10 is a cross-sectional view taken on line lli--l0ofFig.9;and
Fig. 11 is a perspective view of the closed book.
For the purpose of illustration, there is shown in Fig. 6 of the drawings, an envelope ill made in accordance with the process embodying the invention. The envelope III is made of two, similar, superimposed sheets ll, of heat fusible material, such as hydrochlorinated rubber, known as Pliofilm, or the like material which becomes adhesive and plastic upon application of heat.
The sheets H are seamed or sealed at the side edges l2, and at its rear edge IS, the envelope being open at one end. The sheets II are fused or attached together at their outer edges I2 and I! by the application of heat to the edges of said sheets, in the manner described hereinafter. The drawings show sheets ll somewhat separated for the purpose of illustration only, said sheets in fact being in contact.
The dominant feature of the present invention is the provision of a method of simultaneously making a stack or quantity of envelopes It, or other articles made of sheets of heat fusible material, seamed together by application of heat.
The process of making a stack of envelopes ll,
in accordance with the invention, will be described:
There is simultaneously unwound from a roll IS, a sheet I6 of paper, and a pair of rolls I 1, sheets II of heat fusible material, such as Pliofilm. The sheets i6 and III are unwound into superimposed relation, and may be cut down along lines 20, to sizes easy to handle. The cut batches are stacked one on top of the other, to produce a stack consisting of a sheet of paper for every two contacting sheets of Pliofilm. The stack may then be cut by suitable cutting blades or dies, to the correct size of envelope desired, to produce a stack 22, shown in Figs. 2 and 3 of the drawings.
The stack 22 in Figs. 2 and 3 comprises a pair of adjacent contacting sheets II of Pliofilm" between sheets 23 of paper, or the like material which is not fusible by heat and which is more resistant to heat than sheets ll. One end of the stack 22 is then moved into contact with a vertical, elongated, electrically heated plate or member 25, so that the end edges of adjacent pairs of sheets ll may become fused together to form the fused ends l3 of the envelope Hi. The stack need be held against the heater 25 only for several seconds, the heat being sufiicient to fuse the edges of sheets II, but insufilcient to scorch the paper. The paper prevents the heat from penetrating too deeply so that only the outer edges of the sheets II are fused together.
As it is desired to fuse only a narrow strip, adjacent the edges of the contacting sheets II, the stack is held against the heater for a short time, the length of time and the temperature of the heater determining the width of the fused edge. It has been found that with a temperature of about 300 degrees Fahrenheit, about one-sixty fourth of an inch in width will become fused.
The stack 22 may then be manipulated to bring a side edge of the stack into contact with the'heater 25, to permit the side edges of adjacent sheets of Pliofilm to fuse together, for producing seamed or fused side edges II. The stack may then be moved and turned around to bring the opposite side edge into contact with the heated plate, so that the meeting edges of adjacent sheets II are fused together to produce another sealed edge l2, to complete the envelope. One edge of the envelopes may be left open, as shown in Fig. 6 of the drawing.
The sheets of paper between the contacting pairs of sheets ll of Pliofilm keep the contacting pairs of sheets of Pliofilm separate from adjacent pairs of sheets of Pliofilm so that the edges of only contacting sheets of Pliofilm will fuse together. Thus, one pair of contacting sheets of Pliofilm cannot become fused to another pair of sheets of Pliofilm because of the interposed sheets of paper 23.
It will be noted that by carrying out this method, the envelopes l may be made in large quantities, in stacks, and with interposed sheets of paper, exactly in the way they may most advantageously be shipped. The sheets of paper between adjacent envelopes make it easier to handle the envelopes, and easier to pick up individual envelopes oifthe stack. The sheets of paper eliminate static between the envelopes, and prevent adjacent envelopes from sticking together. By cutting the stacks to the right sizes and fusing the edges of the sheets while stacked, the sheets H are uniform and the edges at the open ends are in perfect registry.
It only requires a very few seconds to fuse the meeting edges of contacting sheets of P1iofilm". It has been found that the fused edges l2 and II are strong. The articles are extremely uniform. The meeting edges at the open ends of the envelopes are in perfect registry. The process is economical and easy to carry out because the articles are made in large quantities and not individually,
Although the drawings illustrate the improved process as applied to the manufacture of envelopes, it will be noted that the process may be applied to the manufacture of a large variety of articles made of sheets of Pliofilm or the like heat usible material, such as umbrella covers, garment covers and the like articles.
In making umbrella covers, the sheets are elongated and of narrower width, and are sealed at their long edges only, thus producing an article open at both ends, so that an umbrella or other article may be passed through said article.
In making shoulder length garment covers, the sheets may be cut by a die having the correct shape for producing such articles, and the stack of sheets may be applied to a heater having the shape of the portion of the edges which are to be fused. If desired the stack may be moved past a fixed heated surface to heat seal the edge of the stacked articles.
In Fig. 7 there is illustrated a step in a modified process embodying the invention. In accordance with Fig. 7, the stack of sheets of Pliofilm," with the sheets of paper interposed between alternate sheets of Pliofilm, is cut by an electrically heated die 30, so that the meeting edges of contacting sheets of Pliofilm will become fused by reason of contact with the heated die.
The paper sheets may be replaced by any sheet material which will not fuse or stick to the sheets of Pliofilm, and which will resist heat at temperatures necessary to fuse the Piiofilm" sheets, so as not to scorch or burn. Such sheets, furthermore, are preferably nonmetallic so as not to conduct heat because it is desired to fuse only the outer edge of the Pliofilm. The paper being a poor conductor of heat does not conduct the heat to any substantial degree inwardly of the outer edges of the sheets of Pliofilm.
The Pliofilm sheets may be replaced by sheets having coatings of heat fusible material on the contacting surfaces thereof.
In Fig. 8 there is shown a book cover embodying the invention, and made in accordance with the improved process described hereinabove. The book cover 3| shown in Fig. 8 comprises superimposed top and bottom similar sheets 32, the longitudinal edges whereof are fused together, as at 33, by heat. The book covers may be made in stacks with intervening sheets of paper, in the manner described hereinabove.
It will be noted that the outer ends of the book cover 3| are open. The book cover may be folded over the rear of a book, as shown in Figs. 9, 10 and 11, to receive the hard outer covers 34 of the book 35.
The book cover 3| should be made to fit a book of a given height, that is, the height of the book should be somewhat less than the height of the book cover 3|, between the sealed edges 33 thereof. The book cover 3i however can fit books of various widths and thickness.
For a wider or thicker book, less of the outer ends of the book cover will be received on the covers M. The book cover 3| is preferably transparent so that the printing on the outside of the book can be read. Said book cover 3| is very thin, so as not to materially add to the thickness of the book. The cover 3| is preferably made of hydrochlorinated rubber or Pliofllm, which will not crack upon the book being opened and closed. The same is sanitary and washable, and may be manufactured economically in large quantities.
In fact, the cover 3| is a flattened tube, as shown in Fig. 8 of the drawings. An umbrella cover may be made similar to the book cover shown in Fig. 8, except that it is longer and narrower. The flattened tube may be opened up so that the umbrella may be inserted therethrough.
It will thus be seen that there is provided a device and method in which the several objects of this invention are achieved, and 'which is well adapted to meet the conditions of practical use.
As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiments above set forth, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.
Having thus described my invention, 1 claim as new and desire to secure by Letters Patent:
1. A process of the character described, consisting in stacking sheets of hydrochlorinated rubber and paper, with paper being interposed between contacting sheets of hydrochlorinated rubber, and then cutting through the stack with a heated die, whereby the edges of the contacting sheets at the cut edges of the stack will become fused and attached together.
2. A process of the character described consisting in stacking a plurality of paiis of contacting sheets of thermoplastic material, with nonthermoplastic material between adjacent pairs of contacting sheets and cutting through the stack with a heated die, whereby the edges of the contacting sheets of thermoplastic material at the cut edges of the stack become fused and attached together.
3. A method of the character described consisting in stacking a plurality of units together each including two sheets of thermoplastic ma.- terial, interposing non-thermoplastic insulating material between adjacent units and cutting through the stack with a heated die to heat seal the cut edges of the imits.
DANIEL B SCHWARTZMAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24735938 US2232640A (en) | 1938-12-23 | 1938-12-23 | Method of making articles from heat fusible sheet material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24735938 US2232640A (en) | 1938-12-23 | 1938-12-23 | Method of making articles from heat fusible sheet material |
Publications (1)
Publication Number | Publication Date |
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US2232640A true US2232640A (en) | 1941-02-18 |
Family
ID=22934620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US24735938 Expired - Lifetime US2232640A (en) | 1938-12-23 | 1938-12-23 | Method of making articles from heat fusible sheet material |
Country Status (1)
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US (1) | US2232640A (en) |
Cited By (62)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2418092A (en) * | 1944-11-21 | 1947-03-25 | Morris J Passel | Furniture arm protector |
US2422725A (en) * | 1942-04-11 | 1947-06-24 | Shellmar Products Corp | Container and seam construction |
US2425388A (en) * | 1943-04-23 | 1947-08-12 | Oestricher Bernard | Plastic inner sole |
US2432662A (en) * | 1945-09-20 | 1947-12-16 | Gardner Ind Associates Inc | Flexible article cover |
US2466387A (en) * | 1949-04-05 | Method of sealing the ends of duplex | ||
US2467133A (en) * | 1946-08-31 | 1949-04-12 | Dow Chemical Co | High-frequency electric field heating to produce uniform welds in a stack of organicthermoplastic films |
US2477040A (en) * | 1945-03-13 | 1949-07-26 | Rca Corp | Sewing machine for thermoplastic materials |
US2481602A (en) * | 1944-02-28 | 1949-09-13 | Udylite Corp | Method for forming thermoplastic inner soles |
US2510383A (en) * | 1945-11-15 | 1950-06-06 | Pye Ltd | Method of cutting or trimming thermoplastic materials |
US2519330A (en) * | 1948-07-13 | 1950-08-15 | Pla Safe Plastics Corp | Method of cutting woven plastic to form a displaced edge |
US2522346A (en) * | 1947-12-27 | 1950-09-12 | Wingfoot Corp | Method of producing tubes from two heat-sealable films |
US2521984A (en) * | 1947-05-19 | 1950-09-12 | American Felt Co | Fibrous unit |
US2525139A (en) * | 1946-03-04 | 1950-10-10 | Atlanta Paper Company | Pouch making machine |
US2526649A (en) * | 1946-11-13 | 1950-10-24 | Gaibel Hyman | Preparation of piled webs |
US2529847A (en) * | 1948-03-06 | 1950-11-14 | Edelmann & Co | Apparatus for manufacturing closures from flexible plastic material |
US2532438A (en) * | 1947-04-15 | 1950-12-05 | Sanitary Tampon Corp | Process for severing of connected tampons |
US2582456A (en) * | 1948-10-15 | 1952-01-15 | Talon Inc | Slide fastener |
US2584633A (en) * | 1945-11-09 | 1952-02-05 | Shellmar Products Corp | Container with fused reinforced seam |
US2591490A (en) * | 1946-03-01 | 1952-04-01 | Electrolux Corp | Air filter |
US2622680A (en) * | 1947-12-16 | 1952-12-23 | Wingfoot Corp | Floor cutting heater and method |
US2627213A (en) * | 1949-11-04 | 1953-02-03 | Norman H Nye | Apparatus for making thermoplastic resin bags |
US2635672A (en) * | 1950-11-29 | 1953-04-21 | Jr Herbert Rumsey | Apparatus for heat sealing and severing thermoplastic materials |
US2641484A (en) * | 1950-07-14 | 1953-06-09 | Brody Arthur | Protective book cover |
US2649672A (en) * | 1950-05-19 | 1953-08-25 | Wingfoot Corp | Method of wrapping in multi-ply material |
US2656658A (en) * | 1951-02-07 | 1953-10-27 | John P Grady | Bagmaking and filling machine |
US2666006A (en) * | 1948-04-02 | 1954-01-12 | Gen Mills Inc | Method of balloon construction |
US2666600A (en) * | 1951-06-25 | 1954-01-19 | Gen Mills Inc | Balloon and method of making |
US2679194A (en) * | 1952-03-10 | 1954-05-25 | Goodyear Tire & Rubber | Thermosealable package |
US2679280A (en) * | 1952-04-24 | 1954-05-25 | Production Inc | Plastic bag sealing and cutting machine |
US2711780A (en) * | 1950-04-24 | 1955-06-28 | Gen Mills Inc | Method and apparatus for butt welding thermoplastic material |
US2711779A (en) * | 1950-04-17 | 1955-06-28 | Gen Mills Inc | Method and apparatus for severing and joining layers of thermoplastic material |
US2712777A (en) * | 1949-04-22 | 1955-07-12 | Troth Bright Page Inc | Method of making folding plastic containers |
DE934755C (en) * | 1950-05-19 | 1955-11-03 | Wingfoot Corp | Use of multi-layer, thermoplastic films as wrapping sheets |
US2728439A (en) * | 1954-08-26 | 1955-12-27 | Buckeye Ribbon & Carbon Compan | Typewriter ribbon |
US2740740A (en) * | 1952-12-12 | 1956-04-03 | Frederick C Binnall | Method of making bags |
US2759090A (en) * | 1952-10-20 | 1956-08-14 | Frye Jack | Heat sealing and cutting device |
US2759524A (en) * | 1952-01-17 | 1956-08-21 | Ford C Davis | Methods and apparatus for forming welded joints in heat-fusible plastic material |
US2771534A (en) * | 1955-07-19 | 1956-11-20 | Joseph L Schwahn | Rotating nylon belt cutter |
US2884183A (en) * | 1956-05-09 | 1959-04-28 | Frankel Morris | Packaging or wrapping devices |
US2901038A (en) * | 1955-04-04 | 1959-08-25 | Happich Gmbh Gebr | Sun visor |
US2957513A (en) * | 1957-12-20 | 1960-10-25 | Byk Gulden Lomberg Chem Fab | Method and apparatus for heat sealing and severing by means of a stencil and hot gasstream |
US3015600A (en) * | 1957-02-04 | 1962-01-02 | Cook Engineering And Electroni | Plastic film cutter and sealer |
US3146465A (en) * | 1963-01-17 | 1964-09-01 | H & H Plastics Mfg Co | Plastic bibs |
US3227484A (en) * | 1963-05-31 | 1966-01-04 | Theodore S Merclean | Cover for a baby stroller |
US3287195A (en) * | 1961-11-17 | 1966-11-22 | Continental Can Co | Method of pressure welding thermoplastic film |
US3326578A (en) * | 1966-07-07 | 1967-06-20 | Fener Alfred | Method and means for covering books with thermoplastic sheeting |
US3654017A (en) * | 1968-02-01 | 1972-04-04 | Alta Ind | Process of making articles from films of thermoplastic material |
US3933563A (en) * | 1972-05-25 | 1976-01-20 | Carlisle Richard S | Method of severing and edge-sealing thermoplastic sets of films |
US4053671A (en) * | 1973-01-24 | 1977-10-11 | Carlisle Richard S | Article having edge-sealed films |
US4055452A (en) * | 1973-01-24 | 1977-10-25 | Carlisle Richard S | Method and apparatus for severing and edge-sealing thermoplastic films, and product |
US4261780A (en) * | 1979-02-14 | 1981-04-14 | Nippon Flute Co., Inc. | Method of bundling bags by heat-adhesion |
US4281428A (en) * | 1980-02-19 | 1981-08-04 | Morris Rochlin | Floatation pads for life-saving vests |
WO1985001252A1 (en) * | 1983-09-14 | 1985-03-28 | Hurst G L | Method of edge bonding sheets and resulting assemblies |
US20090193768A1 (en) * | 2006-02-20 | 2009-08-06 | Aldo Farneti | Machine for Covering Various Types of Articles |
US20140158823A1 (en) * | 2012-12-07 | 2014-06-12 | Michael Smith | High altitude balloon system |
US20160001472A1 (en) * | 2012-11-09 | 2016-01-07 | Cubic Tech Corporation | Systems and method for producing three-dimensional articles from flexible composite materials |
US9789662B2 (en) | 2013-03-13 | 2017-10-17 | Cubic Tech Corporation | Engineered composite systems |
US9845141B2 (en) | 2012-12-07 | 2017-12-19 | Raven Industries, Inc. | Atmospheric balloon system |
US10189209B2 (en) | 2013-03-13 | 2019-01-29 | Dsm Ip Assets B.V. | Systems and method for producing three-dimensional articles from flexible composite materials |
US10513088B2 (en) | 2015-01-09 | 2019-12-24 | Dsm Ip Assets B.V. | Lightweight laminates and plate-carrier vests and other articles of manufacture therefrom |
US11072143B2 (en) | 2013-03-13 | 2021-07-27 | Dsm Ip Assets B.V | Flexible composite systems and methods |
US11673347B2 (en) | 2015-02-02 | 2023-06-13 | Aerostar International, Llc | Tendon sleeve for high-altitude balloon and system for making the same |
-
1938
- 1938-12-23 US US24735938 patent/US2232640A/en not_active Expired - Lifetime
Cited By (68)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2466387A (en) * | 1949-04-05 | Method of sealing the ends of duplex | ||
US2422725A (en) * | 1942-04-11 | 1947-06-24 | Shellmar Products Corp | Container and seam construction |
US2425388A (en) * | 1943-04-23 | 1947-08-12 | Oestricher Bernard | Plastic inner sole |
US2481602A (en) * | 1944-02-28 | 1949-09-13 | Udylite Corp | Method for forming thermoplastic inner soles |
US2418092A (en) * | 1944-11-21 | 1947-03-25 | Morris J Passel | Furniture arm protector |
US2477040A (en) * | 1945-03-13 | 1949-07-26 | Rca Corp | Sewing machine for thermoplastic materials |
US2432662A (en) * | 1945-09-20 | 1947-12-16 | Gardner Ind Associates Inc | Flexible article cover |
US2584633A (en) * | 1945-11-09 | 1952-02-05 | Shellmar Products Corp | Container with fused reinforced seam |
US2510383A (en) * | 1945-11-15 | 1950-06-06 | Pye Ltd | Method of cutting or trimming thermoplastic materials |
US2591490A (en) * | 1946-03-01 | 1952-04-01 | Electrolux Corp | Air filter |
US2525139A (en) * | 1946-03-04 | 1950-10-10 | Atlanta Paper Company | Pouch making machine |
US2467133A (en) * | 1946-08-31 | 1949-04-12 | Dow Chemical Co | High-frequency electric field heating to produce uniform welds in a stack of organicthermoplastic films |
US2526649A (en) * | 1946-11-13 | 1950-10-24 | Gaibel Hyman | Preparation of piled webs |
US2532438A (en) * | 1947-04-15 | 1950-12-05 | Sanitary Tampon Corp | Process for severing of connected tampons |
US2521984A (en) * | 1947-05-19 | 1950-09-12 | American Felt Co | Fibrous unit |
US2622680A (en) * | 1947-12-16 | 1952-12-23 | Wingfoot Corp | Floor cutting heater and method |
US2522346A (en) * | 1947-12-27 | 1950-09-12 | Wingfoot Corp | Method of producing tubes from two heat-sealable films |
US2529847A (en) * | 1948-03-06 | 1950-11-14 | Edelmann & Co | Apparatus for manufacturing closures from flexible plastic material |
US2666006A (en) * | 1948-04-02 | 1954-01-12 | Gen Mills Inc | Method of balloon construction |
US2519330A (en) * | 1948-07-13 | 1950-08-15 | Pla Safe Plastics Corp | Method of cutting woven plastic to form a displaced edge |
US2582456A (en) * | 1948-10-15 | 1952-01-15 | Talon Inc | Slide fastener |
US2712777A (en) * | 1949-04-22 | 1955-07-12 | Troth Bright Page Inc | Method of making folding plastic containers |
US2627213A (en) * | 1949-11-04 | 1953-02-03 | Norman H Nye | Apparatus for making thermoplastic resin bags |
US2711779A (en) * | 1950-04-17 | 1955-06-28 | Gen Mills Inc | Method and apparatus for severing and joining layers of thermoplastic material |
US2711780A (en) * | 1950-04-24 | 1955-06-28 | Gen Mills Inc | Method and apparatus for butt welding thermoplastic material |
US2649672A (en) * | 1950-05-19 | 1953-08-25 | Wingfoot Corp | Method of wrapping in multi-ply material |
DE934755C (en) * | 1950-05-19 | 1955-11-03 | Wingfoot Corp | Use of multi-layer, thermoplastic films as wrapping sheets |
US2641484A (en) * | 1950-07-14 | 1953-06-09 | Brody Arthur | Protective book cover |
US2635672A (en) * | 1950-11-29 | 1953-04-21 | Jr Herbert Rumsey | Apparatus for heat sealing and severing thermoplastic materials |
US2656658A (en) * | 1951-02-07 | 1953-10-27 | John P Grady | Bagmaking and filling machine |
US2666600A (en) * | 1951-06-25 | 1954-01-19 | Gen Mills Inc | Balloon and method of making |
US2759524A (en) * | 1952-01-17 | 1956-08-21 | Ford C Davis | Methods and apparatus for forming welded joints in heat-fusible plastic material |
US2679194A (en) * | 1952-03-10 | 1954-05-25 | Goodyear Tire & Rubber | Thermosealable package |
US2679280A (en) * | 1952-04-24 | 1954-05-25 | Production Inc | Plastic bag sealing and cutting machine |
US2759090A (en) * | 1952-10-20 | 1956-08-14 | Frye Jack | Heat sealing and cutting device |
US2740740A (en) * | 1952-12-12 | 1956-04-03 | Frederick C Binnall | Method of making bags |
US2728439A (en) * | 1954-08-26 | 1955-12-27 | Buckeye Ribbon & Carbon Compan | Typewriter ribbon |
US2901038A (en) * | 1955-04-04 | 1959-08-25 | Happich Gmbh Gebr | Sun visor |
US2771534A (en) * | 1955-07-19 | 1956-11-20 | Joseph L Schwahn | Rotating nylon belt cutter |
US2884183A (en) * | 1956-05-09 | 1959-04-28 | Frankel Morris | Packaging or wrapping devices |
US3015600A (en) * | 1957-02-04 | 1962-01-02 | Cook Engineering And Electroni | Plastic film cutter and sealer |
US2957513A (en) * | 1957-12-20 | 1960-10-25 | Byk Gulden Lomberg Chem Fab | Method and apparatus for heat sealing and severing by means of a stencil and hot gasstream |
US3287195A (en) * | 1961-11-17 | 1966-11-22 | Continental Can Co | Method of pressure welding thermoplastic film |
US3146465A (en) * | 1963-01-17 | 1964-09-01 | H & H Plastics Mfg Co | Plastic bibs |
US3227484A (en) * | 1963-05-31 | 1966-01-04 | Theodore S Merclean | Cover for a baby stroller |
US3326578A (en) * | 1966-07-07 | 1967-06-20 | Fener Alfred | Method and means for covering books with thermoplastic sheeting |
US3654017A (en) * | 1968-02-01 | 1972-04-04 | Alta Ind | Process of making articles from films of thermoplastic material |
US3933563A (en) * | 1972-05-25 | 1976-01-20 | Carlisle Richard S | Method of severing and edge-sealing thermoplastic sets of films |
US4053671A (en) * | 1973-01-24 | 1977-10-11 | Carlisle Richard S | Article having edge-sealed films |
US4055452A (en) * | 1973-01-24 | 1977-10-25 | Carlisle Richard S | Method and apparatus for severing and edge-sealing thermoplastic films, and product |
US4261780A (en) * | 1979-02-14 | 1981-04-14 | Nippon Flute Co., Inc. | Method of bundling bags by heat-adhesion |
US4281428A (en) * | 1980-02-19 | 1981-08-04 | Morris Rochlin | Floatation pads for life-saving vests |
WO1985001252A1 (en) * | 1983-09-14 | 1985-03-28 | Hurst G L | Method of edge bonding sheets and resulting assemblies |
GB2157228A (en) * | 1983-09-14 | 1985-10-23 | Hurst G L | Method of edge bonding sheets and resulting assemblies |
US20090193768A1 (en) * | 2006-02-20 | 2009-08-06 | Aldo Farneti | Machine for Covering Various Types of Articles |
US7954303B2 (en) * | 2006-02-20 | 2011-06-07 | Colibri' System S.P.A. | Machine for covering various types of articles |
US20160001472A1 (en) * | 2012-11-09 | 2016-01-07 | Cubic Tech Corporation | Systems and method for producing three-dimensional articles from flexible composite materials |
US9993978B2 (en) * | 2012-11-09 | 2018-06-12 | Cubic Tech Corporation | Systems and method for producing three-dimensional articles from flexible composite materials |
US20140158823A1 (en) * | 2012-12-07 | 2014-06-12 | Michael Smith | High altitude balloon system |
US9463861B2 (en) | 2012-12-07 | 2016-10-11 | Raven Industries, Inc. | High altitude balloon system |
US9845141B2 (en) | 2012-12-07 | 2017-12-19 | Raven Industries, Inc. | Atmospheric balloon system |
US9193480B2 (en) * | 2012-12-07 | 2015-11-24 | Raven Industries, Inc. | High altitude balloon system |
US9789662B2 (en) | 2013-03-13 | 2017-10-17 | Cubic Tech Corporation | Engineered composite systems |
US10189209B2 (en) | 2013-03-13 | 2019-01-29 | Dsm Ip Assets B.V. | Systems and method for producing three-dimensional articles from flexible composite materials |
US11072143B2 (en) | 2013-03-13 | 2021-07-27 | Dsm Ip Assets B.V | Flexible composite systems and methods |
US11090898B2 (en) | 2013-03-13 | 2021-08-17 | Dsm Ip Assets B.V. | Engineered composite systems |
US10513088B2 (en) | 2015-01-09 | 2019-12-24 | Dsm Ip Assets B.V. | Lightweight laminates and plate-carrier vests and other articles of manufacture therefrom |
US11673347B2 (en) | 2015-02-02 | 2023-06-13 | Aerostar International, Llc | Tendon sleeve for high-altitude balloon and system for making the same |
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