And Means Uniting Noncoextensive Plural Webs Patents (Class 156/467)
-
Patent number: 10960628Abstract: A method forms a butt joint between ends of first and second plies and splices the first and second plies together. The method includes the steps of: positioning a first splice edge of a first ply at a first location; positioning a second splice edge of a second ply at a second location, the second splice edge being left bare; wrapping a gum strip around the first splice edge such that the first gum strip forms a U-shaped structure in section that allows the first gum strip to extend from a first planar side of the first ply over the first splice edge to a second opposite planar side of the first ply; not wrapping a gum strip around the second splice edge; placing the first splice edge in abutting relationship to the second splice edge; and stitching the first splice edge to the second splice edge such that stitches each extend from the first planar side of the first ply, through the gum strip, to the first planar side of the second ply.Type: GrantFiled: September 15, 2015Date of Patent: March 30, 2021Assignee: The Goodyear Tire & Rubber CompanyInventors: Robert Anthony Neubauer, Ryan Michael Schmidt
-
Patent number: 9827711Abstract: The present disclosure generally relates to devices and methods for furniture protection. More particularly, the present disclosure relates to foam-film sheets configured to protect furniture from damage. An exemplary foam-film sheet as disclosed herein includes a sheet of foam material having a first lateral edge and a second lateral edge; a sheet of film material having a first lateral edge and a second lateral edge; a first seal between a portion of the foam material proximate its first lateral edge and a portion of the film material proximate its first lateral edge; and a second seal between a portion of the foam material proximate its second lateral edge and a portion of the film material proximate its second lateral edge, wherein the film and foam are substantially unseated along the entire transverse width between the first and second sealed portions near the lateral edges of the foam material.Type: GrantFiled: April 23, 2012Date of Patent: November 28, 2017Assignee: Pregis Innovative Packaging LLCInventors: Thomas D. Wetsch, Darren Keith Green
-
Patent number: 8529721Abstract: A method and apparatus for a tray, a folding section connected to the tray, and a tape application system. The tray has a channel for receiving an elongate insert for a composite material with a number of layers for a release system. The folding section is capable of folding a number of layers around the elongate insert to cover the elongate insert as the elongate insert is moved through the folding unit. The tape application system is capable of applying a tape to the number of layers for covering the elongate insert to form the release system.Type: GrantFiled: July 12, 2012Date of Patent: September 10, 2013Assignee: The Boeing CompanyInventors: Brian G. Robins, Darrell D. Jones, Kurtis S. Willden, Daniel M. Rotter
-
Patent number: 8257536Abstract: A method and apparatus for a tray, a folding section connected to the tray, and a tape application system. The tray has a channel for receiving an elongate insert for a composite material with a number of layers for a release system. The folding section is capable of folding a number of layers around the elongate insert to cover the elongate insert as the elongate insert is moved through the folding unit. The tape application system is capable of applying a tape to the number of layers for covering the elongate insert to form the release system.Type: GrantFiled: December 18, 2008Date of Patent: September 4, 2012Assignee: The Boeing CompanyInventors: Brian G. Robins, Darrell D. Jones, Kurtis S. Willden, Daniel M. Rotter
-
Publication number: 20120111485Abstract: The present invention aims to provide method and apparatus for making a disposable diaper improved so that a region of the continuous elastic predetermined to extend across the middle of the crotch region may be attached to continuous web in a desired condition.Type: ApplicationFiled: July 8, 2010Publication date: May 10, 2012Applicant: UNI-CHARM CORPORATIONInventors: Yoshikazu Ogasawara, Akira Hamada
-
Publication number: 20110285055Abstract: In a device and method for manufacturing preforms of fiber reinforced plastic, in a first step, continuously supplied fiber layers are laterally reshaped in a predetermined manner, and the section that is obtained is curved longitudinally in a specific manner in a second step.Type: ApplicationFiled: April 11, 2011Publication date: November 24, 2011Inventors: Raphael Reinhold, Stefan Juergens
-
Patent number: 7954532Abstract: An apparatus for forming a hem is provided. The apparatus has a tape station for use in application of tape to a blank. A hemmer is used for folding the blank. A driving roller is present for use in moving the blank and for use in compressing the blank and the tape to form a hem. A method of forming a hem is also provided.Type: GrantFiled: March 20, 2007Date of Patent: June 7, 2011Assignee: U.S. Banner Corp.Inventor: Terry Puleo
-
Patent number: 7779881Abstract: A machine for making collapsible cellular structures folds two fabric webs into a V-shape or C-shape, connects the webs together with strands of adhesive, applies glue lines and collects the webs on a wheel. A variable speed motor, a fabric drive system which enables glue to be applied when the fabric is not stretched and a lay-on wheel assembly with movable arm that directs the fabric onto the collector can be provided in the machine.Type: GrantFiled: May 27, 2004Date of Patent: August 24, 2010Inventors: Ren Judkins, John D. Rupel
-
Patent number: 7546864Abstract: Structural stiffening 14, a stiffened structure 10 and apparatus 37 and method for forming the structural stiffening 14. The structural stiffening 14 is formed using first and second forming means adapted to respectively receive first and second sheets of material 39 and form an upstanding portion 30 in each of said sheets, feed means adapted to feed a filler material 24 between said upstanding portions 30, and fixing means 50 adapted to fix said upstanding portions 30 to said filler material 24. The structural stiffening may be attached to a structure to be stiffened 12 to form a stiffened structure 10.Type: GrantFiled: August 31, 2001Date of Patent: June 16, 2009Assignee: Airbus UK LimitedInventor: Allan Kaye
-
Patent number: 7069970Abstract: New processes and apparatus for forming lap seams and making prefastened disposable absorbent articles are disclosed. The apparatus can include an interior folding mechanism adapted to position a first panel in an interior position and an exterior folding mechanism adapted to position a second panel in an exterior position relative to the interior position. The interior folding mechanism can include a mandrel defining a curved peripheral surface and an interior forming shoulder in proximity to the mandrel. A fluid pressure device can establish an air flow between the mandrel and the interior forming shoulder. The forming shoulder can modify the direction of the air flow as the first panel travels in a machine direction to increasingly fold the panel over the curved peripheral surface.Type: GrantFiled: April 3, 2003Date of Patent: July 4, 2006Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Charles Robert Tomsovic, Joseph Daniel Coenen, David Albert Maxton
-
Publication number: 20030180501Abstract: Structural stiffening 14, a stiffened structure 10 and apparatus 37 and method for forming the structural stiffening 14. The structural stiffening 14 is formed using first and second forming means adapted to respectively receive first and second sheets of material 39 and form an upstanding portion 30 in each of said sheets, feed means adapted to feed a filler material 24 between said upstanding portions 30, and fixing means 50 adapted to fix said upstanding portions 30 to said filler material 24. The structural stiffening may be attached to a structure to be stiffened 12 to form a stiffened structure 10.Type: ApplicationFiled: February 27, 2003Publication date: September 25, 2003Inventor: Allan Kaye
-
Patent number: 6554955Abstract: An apparatus for producing a flexible heat-exchange device for taking heat from or delivering heat to the ambient surroundings, wherein the device includes a body comprised of mutually joined flexible mats and including an internal passageway for the heat-carrying fluid. The apparatus includes two mould dies which can be brought together and have on their mutually opposing surfaces generally mirror-image patterns in the form of recesses in the respective abutment surfaces of the tools, the recesses corresponding to the extension of a flow passageway, and two mat joining tools which can be brought together and have on their mutually opposing surfaces a generally mirror-image pattern in the form of abutment surfaces that form the electrodes of the mat joining tools, wherein the electrodes are disposed in a pattern corresponding to the delimitations of the flow passageway, and the electrodes can be connected to a high frequency welding unit.Type: GrantFiled: July 24, 2001Date of Patent: April 29, 2003Assignee: Tex Sun Energy ABInventor: Per Gunnar Eriksson
-
Patent number: 6390167Abstract: In a method and an apparatus for manufacturing multi-layered hygiene products, a starting material web (2) is transported from one or more supply stations (4) to one or more processing stations (3) in which the starting material is cut, shaped, laminated, folded, etc. so as to form the finished hygiene products. The processing stations (3) are arranged on a processing plane (12), while the supply stations (4) are arranged on a supply plane (13), wherein these two planes are respective parallel vertical planes that are horizontally spaced apart from each other. The physical separation of the supply stations from the processing stations allows an effective noise shielding of the processing stations and the use of larger supply rolls in the supply stations, as well as improved accessibility of the equipment.Type: GrantFiled: August 25, 1999Date of Patent: May 21, 2002Assignee: Winkler & Duennebier AGInventors: Armin Geissen, Albert Becker, Hans Peter Buentgen, Anja Wilms, Konrad Zilles, Hans Werner Soehn
-
Publication number: 20010030027Abstract: A tape-sheathing device is provided to eliminate peeling of a tape adhered to an electric wire, in which a first die, a second die and a third die having tapered holes are serially arranged. An electric wire fed by a feed roller and a tape are inserted together into respective dies, and the tape is installed incrementally on the electric wire by the respective dies. Opening portions are provided in the first die and the second die by notching a portion in the range of about 90° of the downstream end portions of the first and second dies, in a condition in which the opening in the first die and the opening in the second die are shifted by about 90° relative to each other. When the tape passes through the first die, it is adhered to a partial peripheral portion of the electric wire, adhered to about three quarters of the wire by passage through the second die, and adhered completely around the periphery by passage through the third die.Type: ApplicationFiled: April 11, 2001Publication date: October 18, 2001Applicant: SUMITOMO WIRING SYSTEMS, Ltd.Inventor: Takahiro Okamura
-
Patent number: 6250357Abstract: The machine of the present invention fabricates an undergarment assembly having an elasticized pad support panel secured to inner surfaces of the rear panel and the openable front panel. The machine makes the garment assembly from two half width webs, one of which has a reinforced edge. The machine arrangement includes first and second transversely spaced web paths and components to bond tensioned elastic strands to spaced dots of adhesive located on a third pad supporting web that is secured to adhesive areas applied adjacent, but not in, the garment crotch area with spaced adhesive applied to the innermost surfaces of the rear and front panels. The machine includes devices to add side margin and front panel connecting tapes, and die cutting rolls to cut leg openings in side margins. The machine includes components to divert cull product and deliver flat unfolded product, or longitudinal and transverse folded products for packaging.Type: GrantFiled: March 15, 1999Date of Patent: June 26, 2001Inventor: William P. Niedermeyer
-
Patent number: 5882464Abstract: Absorbent articles having absorbent cores comprising multiple absorbent layers which are joined to each other. In particular, absorbent structures which have one of the absorbent layers being shorter in the manufacturing direction than at least one of the other layers and which are joined to one of the other layers by crimping and a process of crimping of a central patch of a fibrous web to a tissue.Type: GrantFiled: December 19, 1996Date of Patent: March 16, 1999Assignee: The Procter & Gamble Co.Inventors: Mario Matthias Theisgen, John Christian Schmitt
-
Patent number: 5605596Abstract: A method and apparatus is described for applying unvulcanized gumstrips in precise overlapping relation on the marginal edges of an unvulcanized tire reinforcement belt or breaker to enhance the adhesion between the reinforcement belt or breaker and surrounding components of a finished, vulcanized tire.Type: GrantFiled: February 6, 1995Date of Patent: February 25, 1997Assignee: The Goodyear Tire & Rubber CompanyInventor: James L. McLaughlin
-
Patent number: 5536343Abstract: In a method and apparatus for manufacturing a slide fastener chain having rows of coupling elements and members of a separable bottom end stop assembly, two positioning holes are formed at predetermined positions on reinforcing films attached to a pair of fastener tapes. The positioning holes are used to position the fastener tapes relative to a molding unit with respect to each individual slide fastener length. Thus, even when a positioning error is produced due to a change in tension on the fastener tapes being processed, such error is limited to a small extent which is created only in the individual slide fastener length. Thus, the coupling elements and the first pin member and the second pin member can be molded precisely.Type: GrantFiled: August 30, 1994Date of Patent: July 16, 1996Assignee: YKK CorporationInventor: Kazuki Kuse
-
Patent number: 5403428Abstract: The present invention relates to a method and apparatus for producing communication articles such as postcards, envelopes or the like in each of which display surfaces for information or the like are separably bonded with a synthetic resin therebetween by heating for concealing information such as correspondence or a printed display medium and then mailing it. It is an object of the invention to enable easy and smooth separating of a film-containing sheet and accurate insertion of a film in a sheet.Type: GrantFiled: October 11, 1991Date of Patent: April 4, 1995Assignee: Toyo Shokuhin Kikai Kabushiki KaishaInventors: Hiromichi Shingo, Yukio Sasayama, Itaru Murakami, Yukio Kii, Eiji Yonekura
-
Patent number: 5382467Abstract: The present invention relates to a resilient body which includes two thin layers (1, 6) of flexible material to which intermediate elastic threads (2, 3, 5) or bands are fastened in a stretched state and disposed in a regular, net-like pattern, and bodies (4) of soft material are disposed between the two layers (1, 6) in at least some of the meshes of the net formed by the elastic threads. These bodies have smaller dimensions than the meshes, so as to permit total or partial contraction of the stretched or tensioned elastic threads. The bodies also have an intrinsic stiffness such as to substantially retain their shape upon contraction of the elastic threads. The invention also relates to a method for manufacturing the inventive resilient body.Type: GrantFiled: June 22, 1992Date of Patent: January 17, 1995Assignee: Molnlycke ABInventors: Urban Widlund, Roy Hansson
-
Patent number: 5236530Abstract: In a coating machine for coating of strip with a lining which is wider than the strip, a method and a device for filling up the space between the strip and the outer edges of the lining with edge strip, wherein the edge strip is passed inside a bent and folded transport channel, a first bent part of which coincides with the longitudinal direction of the strip.Type: GrantFiled: April 29, 1992Date of Patent: August 17, 1993Assignee: Asea Brown Boveri ABInventor: Lars Eriksson
-
Patent number: 5004516Abstract: There is disclosed an apparatus for bonding an adhesive rubber tape to both ends of a steel cord fabric. The apparatus comprises a unit for carrying the fabric, a unit for supplying the tape, and unit for folding and bonding the tape to both ends of the fabric. The folding/bonding unit includes a press rollers for bonding a widthwise half of the tape to upper end surfaces of the fabric, oblique rollers for folding an unbonded portion of the tape at both ends of the fabric, and taper rollers for bonding the folded tape to the fabric. The surfaces of oblique rollers are formed of transformable elastic materials, these rollers on each side of the steel cord fabric being disposed at different inclined angles.Type: GrantFiled: April 7, 1989Date of Patent: April 2, 1991Assignee: Mitsubishi Jukogyo Kabushiki KaishaInventors: Yukihiro Koga, Yukio Koyama
-
Patent number: 4902373Abstract: The invention relates to a process for joining films by heat sealing, where these films are in rolls (9) and in particular a few microns thick. In a first stage, this process consists in spreading out a first film (1) on an assembly table (5) while hemming one of its longitudinal edges with a junction tape (3) and an positioning tape (4) sealed on that side of the junction tape (4) which is opposite the film. Once the desired film length has been reached, the film is transversely cut off and the positioning tape (4) then is used to handle this first film (1) and to assure its alignment with a segment of the film (2) packed on the roll (9). The second joining stage then consists in spreading out the film (2) on the table (5) while sealing a longitudinal edge of said film (2) to the outer side of the junction tape (3) following separation of the positioning tape (4) from this junction tape (3).Type: GrantFiled: December 5, 1988Date of Patent: February 20, 1990Assignee: Centre National d'Etudes Spatiales (C.N.E.S.)Inventor: Robert Regipa
-
Patent number: 4746391Abstract: A flat film 11 is delivered from a supply roll 12 to a folding device with a tube forming part 17 and is folded into a tube envelope 23. The butt or overlap seam of the folded tube envelope 23 is covered with a sealing strip 14. The folded tube envelope 23 together with the sealing strip 14 is guided between a partial periphery of a sealing drum 2 and an electrically heated heating band 3 and is sealed under heat and pressure applied by the heating band 3. Electrical current is supplied to the endlessly revolving heating band 3 via feed rollers 6 and 7 from a current source 20 connected, via lines 21 and 22, to sliding contacts 8 which rest against the two sides of each feed roller. An endlessly revolving, cooled steel band 26 is in contact with the seam of the sealed tube envelope 18 and is guided around a cooling roller 9.Type: GrantFiled: December 1, 1986Date of Patent: May 24, 1988Assignee: Hoechst AktiengesellschaftInventors: Klaus Heyse, Ludwig Klenk
-
Patent number: 4645549Abstract: A composite tape primarily for use in transformer winding as an electric screen and having a backing layer of Melinex plastics tape (112) folded around a metal foil strip of copper (110), and a strip of adhesive PVC tape (114) applied to the folded round edges, is formed by a machine having a braked spool (48) of PVC tape (52) which is fed around a roller (36) with a copper foil strip (58) from a braked second spool (56), sandwiched between the tape (52) and the roller (36), and guide rollers (40, 42) which turn in the outermost edges of the tape (52) to overlie the foil (58), whereafter adhesive tape (66) from a braked third spool is applied to the overlapping edges of the tape (52) by a roller (68) and the composite tape is fed through an outlet roller guide (74).Type: GrantFiled: November 15, 1985Date of Patent: February 24, 1987Inventor: Walter T. Lalor
-
Patent number: 4608113Abstract: The present invention is an improved waterproof quick match and apparatus and method of making same in which the loose fitting central core (fuse) covering is made of a plastic coated paper and heat sealed at the seams in a waterproof relationship.Type: GrantFiled: September 14, 1981Date of Patent: August 26, 1986Inventor: Thomas E. Miller
-
Patent number: 4522677Abstract: Feller attachment for a heat-sealing machine for belts, with a feller plate (10), with feller gibs on the feller plate, these feller gibs (20, 21) being arranged at a certain distance from each other and extending in the direction of feed and serving to fell a cover material around the interlining of a belt, with a feeding device (51, 52) for a belt cover band, and a comb (40) for stretching and smoothing the cover material over the interlining prior to applying the belt cover band, with an adjusting device for adjusting the distance of the ends (60, 61) of the feller gibs (20, 21) to each other, this adjusting device meshing with the ends (60, 61) of the feller gibs (20, 21) with these ends pointing toward the heat-sealing machine for belts, and consisting of a sliding bar (44) with sliding bearings (41, 42) arranged thereon and a threaded spindle (46) which meshes with tapped holes (62, 63) in the sliding bearings (41, 42), with the threads (64, 65) on both ends of the threaded spindle (46) as well as the tType: GrantFiled: April 6, 1984Date of Patent: June 11, 1985Assignee: Astor-Werk, Otto Berning & Co.Inventor: Elmar Kuhn
-
Patent number: 4518034Abstract: A process and apparatus for manufacturing a cable having a composite shield and armor sheath design is disclosed. The process comprises the steps of corrugating a laminated tape formed by bonding a plastic coated aluminum tape to a wider steel tape with one edge of the aluminum tape registering with one edge of the steel tape, forming the corrugated laminated tape around a cable core with the uncovered portion of the steel tape overlapping the registering edges of the laminated tape, and extruding an outer jacket of polyethylene over the corrugated laminated tape.Type: GrantFiled: August 8, 1983Date of Patent: May 21, 1985Assignee: Canada Wire and Cable LimitedInventor: David E. Vokey
-
Patent number: 4498949Abstract: Apparatus is disclosed for splicing together successive sections of single facer corrugated board having planar and corrugated fibrous layers, which sections are initially conveyed colinearly in spaced relation at uniform speed with the flutes extending in the direction of travel of the sections, characterized by the provision of a reciprocatory vacuum bar feed member operable initially to accelerate a subsequent section relative to a preceding section to a position in which a protruding layer portion at the trailing end of the preceding section is in superposed relation relative to a protruding layer portion at the leading end of the subsequent section, and subsequently to displace the section at the lower uniform speed at the moment at which the adjacent ends of the sections are in overlapping relation, whereupon the superposed portions may be bonded together to connect the sections to form a continuous web having longitudinally extending flutes.Type: GrantFiled: September 16, 1982Date of Patent: February 12, 1985Inventor: Rolf Soennichsen
-
Patent number: 4492608Abstract: In an elastic band applicator for diapers using hot melt glue, a longitudinally tensioned moving plastic backing sheet is run over a roll that is parallel to and spaced from a stationary cylinder. A shoe deflects the central region of the sheet away from its plane at a location between the roll and cylinder. This results in the margins of the sheet beyond opposite ends of the shoe becoming loose flaps. Glue stripes are applied by means of nozzles to the sheet near its edges before the sheet encounters the shoe which has passageways for the glue stripes. Elastic bands are fed into the passageways onto the glue stripes. After passing the shoe, the margins encounter plows which turn or fold the margins over the glue stripes and bands and press the sheet against a cylinder to smooth the margin. Means are provided for retracting the sheet away from the hot nozzles if the sheet stops moving.Type: GrantFiled: January 6, 1983Date of Patent: January 8, 1985Assignee: Curt G. Joa, Inc.Inventors: John L. Hirsch, Ludwig W. Freitag
-
Patent number: 4451322Abstract: The apparatus accepts dry stripped crude fiber such as straw or sugar cane wastes, coconut husks, or elephant grass, compacts them into a relatively dense sheet, and bonds a strong surfacing material such as a heavy paper to the faces and edges. The sheet, continuously flowing from the apparatus, is cut into standard lengths and the cut ends are capped with the same surfacing material. A precompactor near the end of an entrance chute into the apparatus uniformly predensifies the incoming fiber prior to its compaction by means of a ram. The ram is carried on roller bearings especially adapted to withstand the weight and other forces associated with the continuous movement of the ram. The compacted material is continuously propelled by the ram and enters a press, where heat and pressure produce a dimensionally stable sheet bonded together partially by natural resins released from the fibers by the heat, and partially by mechanical interlinking between fibers.Type: GrantFiled: April 23, 1982Date of Patent: May 29, 1984Assignees: Richard A. Moerman, Barry SullivanInventor: Bolek Dvorak
-
Patent number: 4432831Abstract: The invention relates to a method and apparatus for forming fused seamless belts from an outer covering and an interlining material along with an adhesive. In accordance with the method, the outer covering fabric is folded over the interlining material to enclose the interlining material. The outer covering material is folded in a double layer on either side of the belt on the bottom surface of the interlining material. The belts are formed by applying heat under pressure to the folded arrangement whereby to fuse the various layers together.Type: GrantFiled: September 22, 1982Date of Patent: February 21, 1984Inventor: Harold Blicher
-
Patent number: 4396447Abstract: A method of packaging first and second kneadable plastic masses that react when mixed includes(a) providing the masses in lengthwise elongated strip form and traveling the masses lengthwise in parallel relation but with a predetermined gap therebetween,(b) providing an elongated first plastic film that defines a barrier and traveling that film in the direction of travel of the masses,(c) and urging the traveling film toward the traveling masses to contact same and to locate the barrier in the gap.The film may have side sections simultaneously urged against surfaces of the traveling masses; a second traveling film beneath the masses may be contacted by the barrier; and end portions of the first film may be heat sealed to the second film to encapsulate the masses.Type: GrantFiled: April 9, 1982Date of Patent: August 2, 1983Assignee: Applied Plastics Co., Inc.Inventor: Francis G. Firth
-
Patent number: 4261272Abstract: A method and apparatus for use with a sewing machine by which a liquid is injected between lapped layers of material being sewn. A supply of the liquid at atmospheric pressure is fed by gravity to a constant displacement pump, the pump being actuated by a driven part of the sewing machine so that pumping rate is proportional to sewing rate. The outlet of the pump passes through a line which divides under the control of valve means. One branch of the line leads to a tube that is disposed in a folder, the tube having a discharge end projecting from the folder and disposed just upstream of the sewing machine needle(s). A further flattening roller is disposed after the presser foot through which the needles reciprocate. The other branch of the line is a return line that leads back to the reservoir.Type: GrantFiled: May 2, 1979Date of Patent: April 14, 1981Assignee: FisHair IncorporatedInventor: Wayne O. Duescher
-
Patent number: 4242161Abstract: A method and a machine for producing a latticework structure composed of cells of essentially parallelepipedon shape from e.g. paper coated on one side with synthetic resin. The web is formed over a mandrel into a sleeve of square cross-sectional shape while being successively advanced, and the sleeve is cut into bits which are flattened and by a step-by-step feeding mechanism positioned adjacent one another with one bit overlapping the following one over halfway in the transverse direction. The bits are bonded together while so positioned whereby flat elements are formed. These flat elements are stacked on top of one another by a mechanism ensuring that the elements are displaced by one cell width in their longitudinal direction and the stack of elements is then cut into pieces having the desired height of the cells. When extended, these pieces form the desired cellular latticework structure.Type: GrantFiled: February 27, 1978Date of Patent: December 30, 1980Assignee: Munksjo AktiebolagInventors: Bengt H. Hulten, Hans T. Skarfelt, Uno L. Gjertz
-
Patent number: 4036678Abstract: Apparatus for forming a swimming pool cover or similar article having relatively large transverse dimensions by joining a plurality of elongated pieces of heat sealable material together is disclosed. The apparatus includes a working bed, and means for dispensing first and second pieces of heat sealable material onto the bed so that a marginal portion of the first piece is exposed. The apparatus folds the exposed marginal portion of the first piece over a corresponding marginal portion of the second piece, and the marginal portions are heat sealed together to form a single wider piece of material. The wider piece of material is drawn from the bed and stacked and then returned to the dispensing means for adding another elongate piece to the width of the material, eventually forming a piece of material sufficient to cover the entire pool.Type: GrantFiled: April 21, 1975Date of Patent: July 19, 1977Inventor: Everette M. Lambert
-
Patent number: 4011977Abstract: An applicating machine for applying short lengths of flexible fibrous material having an adhesive coating to a surface. The applicator uses a pair of fingers to hold the fibrous material onto the surface of an applicating pad and a rod to strip the material from the fingers. The fingers are initially spaced from the pad to permit a measured length of flexible material to be moved between the pad and the fingers. The fingers are then retracted to a closed holding position. The fingers support the length of material during the severing of a short length of material by cutting means and while the applicating pad transports the severed strip to the surface for application. The measured length of the flexible material to be dispensed and applied, the applicating pad, and the fingers are moved downward the severed length of fibrous material being applied to a product.Type: GrantFiled: September 25, 1975Date of Patent: March 15, 1977Assignee: Minnesota Mining and Manufacturing CompanyInventors: Larry A. Bettenhausen, James H. Casey, Robert A. Luhman
-
Patent number: 3984272Abstract: An apparatus and method for successively forming disposable diapers wherein the diaper includes a fluidpermeable top cover layer, a moisture-absorbent core under the top cover layer and including a pad of fibrous material and sheets of cellulosic material on each side of the pad, and a fluid-impervious bottom cover layer under the interior core and secured to the top cover layer along longitudinal and transverse edges thereon. The apparatus and method include mechanisms for and steps of, as follows. Supplying and positioning an elongate moisture-absorbent core including a pad of fibrous material of less width than the width of the core and sheets of cellulosic material on each side of the pad. Embossing and securing the sheets of cellulosic material together along longitudinally-extending areas on each side of the pad for forming an envelope of the sheets of cellulosic sheets around the pad.Type: GrantFiled: July 25, 1974Date of Patent: October 5, 1976Assignee: Riegel Textile CorporationInventor: Richard K. Teed