Of Application Of Bonding Pressure Patents (Class 156/358)
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Patent number: 4406725Abstract: A fastener bonding machine for bonding a fastener to a leaf of a file folder, the fastener consisting of an overlay member having hot melt adhesive on one side thereof and having a pronged member mounted thereon, the bonding machine including a base, a heated platen on the base, a first gauge for locating the fastener relative to the heated platen, a pivotal plate mounted on the base, a second gauge for locating the leaf of a file folder relative to the fastener, a proximity switch actuatable by movement of the pivotable plate, a motor, a toggle linkage actuatable by the motor, a presser member movable by the toggle linkage to press the leaf and the fastener together, and a control circuit for causing the presser member to dwell for a period of time during the pressing action and to thereafter return the toggle linkage to a position wherein the presser member has moved away from the platen.Type: GrantFiled: November 6, 1980Date of Patent: September 27, 1983Assignee: Permclip Products CorporationInventor: Joseph T. Corey
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Patent number: 4386993Abstract: An apparatus for heat pressing transfers onto substracts, such as cloth. The device has a horizontal table with a rocking member pivoted at an intermediate portion of a housing and extending from inside to the outside of the housing with a heater plate mounted on the upper end of the rocking member and adapted to engage the table. A cam is fixed to an output shaft within the housing and a ring is placed around the cam for being oscillated by the rotation of the cam, and connecting arms are connected between the ring and the rocking member. A pair of switch actuators is provided on the ring to engage a pair of limit switches for limiting the rotation of the drive shaft for the cam in opposite directions.Type: GrantFiled: December 30, 1981Date of Patent: June 7, 1983Inventor: Mototsugu Matsuo
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Patent number: 4369084Abstract: Apparatus for producing insulating glass filled with a gas other than air, such as sulfur hexafluoride, comprising two substantially vertical plates disposed on opposite sides of the insulating glass to be filled. At least one of said plates is displaceable transversely to said plate. Sealing elements are associated with the top horizontal edges and the vertical side edges of said plates. A tublike container is provided below the plates and has a liftable bottom and an opening that is connected and sealed to the plates.Type: GrantFiled: October 20, 1981Date of Patent: January 18, 1983Inventor: Peter Lisec
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Patent number: 4369082Abstract: This disclosure relates to a method and machine for applying a decal to a generally cylindrical article, particularly an article having a handle on one side thereof. A series of decals are attached to an elongated web and are spaced a generally constant distance apart in the direction of the length of the web. The machine includes supply and takeup spindles for rotatably supporting reels for the web, and a web drive for moving the web from the supply reel to the take-up reel. A mandrel rotatably supports the article and a movable head presses the web and the decal against an article on the mandrel. The web passes from the supply reel, between the mandrel and the head, and to the take-up reel. The machine further includes a brake which, when engaged, holds the web against movement, and a decal sensor assembly. After the machine is actuated to cause the movable head to press the decal against an article, the brake is actuated to release the web, and the web is then pulled across the article.Type: GrantFiled: June 26, 1981Date of Patent: January 18, 1983Assignee: The Meyercord Co.Inventor: Daniel Kerwin
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Patent number: 4367115Abstract: A device for controlling a heated panel press in the switchover from a contact pressure mode to a curing pressure mode, in connection with the assembly of multilayer stacks of printed circuit boards with interposed thermosetting resinous bonding layers, the device consisting essentially of a displacement transducer measuring the decrease in the stack height in terms of displacement pulses and a pulse counter and count comparator producing a switchover signal at a predetermined threshold count which reflects attainment of the flux point in the bonding layer resin. After an adjustable delay, the switchover signal is transmitted to the control unit of the press.Type: GrantFiled: October 13, 1981Date of Patent: January 4, 1983Assignee: Robert Burkle GmbH & Co.Inventors: Hans Bohn, Wolfgang Stein, Peter Bernsau, Fred Staubitzer
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Patent number: 4357197Abstract: The method of bonding a pocket blank to a garment portion of the present invention comprises the steps of providing a pocket blank at a first station. The pocket blank is conveyed to a second station. The bottom and side margin tabs of the pocket blank are folded over the pocket body. Heat and pressure are utilized to apply a strip of heat fusing adhesive to a top margin tab of the pocket blank. Heat and pressure are also applied to the folded over side and bottom margin tabs to crease the same. Next, the top margin tab bearing the adhesive is folded over and heat and pressure are applied to bond the same to the pocket body. Heat and pressure are applied to fuse strips of the heat fusing adhesive to the side and bottom margin tabs of the pocket blank. The prepared pocket blank is then conveyed along the path of travel to a third station where an overlaid garment portion is heat and pressure bonded to the prepared pocket blank.Type: GrantFiled: November 27, 1981Date of Patent: November 2, 1982Assignee: General Fabric Fusing, Inc.Inventor: Robert J. Wilson
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Patent number: 4351688Abstract: An apparatus for severing and laying composite tape to form structural members with a shearing and compacting mechanism capable of a large variety of angular or circular severances. The severances are formed incrementally or digitally with a number of lengthwise slits of selected length. A plurality of transverse cuts are formed in the tape to intersect the slits to form a stairstepped severance. A curved chute at the discharge end of the apparatus has an endless belt to maintain the tape in alignment as it is pressed onto the work surface. The tape is compacted onto the work surface by a segmented roller system composed of several individual rollers. As the severance is reached, the rollers are selectively and individually disengaged from the work surface to correlate compaction termination with the shape of the severance.Type: GrantFiled: May 20, 1981Date of Patent: September 28, 1982Assignee: General Dynamics CorporationInventors: Olin E. Weiss, Grant L. Davis, James L. Hudson, Harlan T. Dowell
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Patent number: 4349405Abstract: Apparatus for sequentially labeling objects differing from each other in size includes a conveyor which defines a path of movement in an approximately horizontal plane for the objects to be labeled. An arresting device arrests each object in a predetermined portion of the path toward which a face portion of a plunger is directed. The label to be applied is supplied to the face portion, and the plunger is moved toward the arrested object until the label is applied to the object by pressure exerted by the plunger. A reversing mechanism responds to the exerted plunger pressure for retracting the plunger from the labeled object.Type: GrantFiled: September 3, 1980Date of Patent: September 14, 1982Inventor: Winfried Dudzik
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Patent number: 4321103Abstract: There is disclosed, in combination with a conveyor for moving packages or other objects of different sizes and shapes from an input station via a customer charge-calculating and labeling station, an improved printed label transport system carrying the labels to the applicator. The label transport and applying system is of a swinging "elbow" type and is of such geometry as to obviate previous problems concerning labeling of articles of varying sizes and shapes as they are being transported on a continuously delivering high speed product line conveyor. The label print system applies all pertinent data on a single label, and the mechanism provides an improved "final touch" pressure against each label incidental to the applying operation. The label transport system includes a sidewise label scanning device which monitors for correctness the indicia printed thereon.Type: GrantFiled: September 25, 1980Date of Patent: March 23, 1982Assignee: Hi-Speed Checkweigher Co., Inc.Inventors: John W. Lindstrom, Walter A. Boyd, Victor Del Rosso
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Patent number: 4319947Abstract: An improved single facer is proposed which is provided with a control system for automatically controlling the gap between the lower corrugating roll and the glue roll and/or that between the former and the press roll according to the thickness of the material passing between them. The thickness of the material and the gap between the rolls are detected and an electrical signal proportional to the difference between them is given to a drive motor, which moves the glue roll and/or the press roll toward and away from the lower corrugating roll.Type: GrantFiled: September 3, 1980Date of Patent: March 16, 1982Assignee: Rengo Kabushiki Kaisha (Rengo Co., Ltd.)Inventor: Masateru Tokuno
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Patent number: 4316758Abstract: A veneer sheet and an adhesive coated sheet are placed on a piling table. Two vertically arranged conveyors each independently conveys one veneer sheet and stops at predetermined position, pressing member presses two sheets simultaneously vertically downwards onto the piling table where the sheets are placed.Type: GrantFiled: June 1, 1979Date of Patent: February 23, 1982Assignee: Meinan Machinery Works, Inc.Inventors: Shunichi Suzuki, Yoshinori Koba, Yoshiaki Yamada, Teruaki Aoto, Yoriyoshi Kuno, Masanobu Yokota
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Patent number: 4313778Abstract: An ultrasonic seaming method and apparatus for continuously bonding thermoplastic material are disclosed. A movable anvil is disposed opposite the output end of a horn for providing a gap through which the thermoplastic material is conveyed. The anvil cyclically is moved away from the face of the horn and immediately thereafter is urged under slight adjustable pressure against the underside of the material and then is clamped in position for a predetermined period of time or an amount of material feed.Type: GrantFiled: September 22, 1980Date of Patent: February 2, 1982Assignee: Branson Ultrasonics CorporationInventor: Bruce L. Mims
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Patent number: 4279675Abstract: A method and apparatus for closing and sealing the end of a container having a tubular body wherein the container and closure portion includes front, rear and side panels each extending axially from the tubular body in the open position of the end closure. Each of the end closure panels may have a sealing strip defined at its outer end by a scored line with the rear panel including a closure flap-extending from the outer edge of its sealing strip. The end closure panels are folded to a flat closed position by closing jaws with the sealing strips and closure flap projecting axially from the tubular body, after which the sealing strips are sonically welded together. The closure flap and sealing strips are then folded flat, and the closure flap is welded to the outer surface of the front end closure panel.Type: GrantFiled: January 10, 1980Date of Patent: July 21, 1981Assignee: Ex-Cell-O CorporationInventor: Eric A. Braun
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Patent number: 4264394Abstract: A device for heating and transferring a film to the surface of an object having a variable transfer width wherein the object is mounted on a rotary jig and a thermal transfer roll contacts the object so that the film is fed between the transfer roll and the object as the jig rotates. In order to prevent excessive transfer pressures, the contact pressure exerted by the transfer roll on the surface of the object can be varied with reference to changes in the width of the surface to which the film is actually applied. In lieu of varying the pressure, the speed at which the transfer rolls traverses the surface can be adjusted with respect to variations in the width of the surface to which the film is transferred.Type: GrantFiled: November 23, 1979Date of Patent: April 28, 1981Assignee: Taihei Industries Co., Ltd.Inventor: Hiroshi Izumihara
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Patent number: 4263766Abstract: An improved machine for automatically applying transfers such as tax stamps to multiple packages contained in a carton is disclosed. The machine comprises a conveyor for advancing a carton through an opening station, where it is opened to expose the packages therein, through a stamping station, where tax stamps in the form of heat or water transfers or ink printing are applied to each of the packages by a movable platen, and through a closing station where the carton is closed and resealed. The machine is adjustable to accommodate a variety of carton and package sizes and to apply the transfers to a selected part of each package in the carton accurately, while using stock transfer sheets on which the transfers are mounted with a predetermined spacing that does not necessarily correspond to the spacing of packages within the carton.Type: GrantFiled: September 30, 1977Date of Patent: April 28, 1981Assignee: R. J. Reynolds Tobacco Co.Inventors: Max N. Baker, Watson M. Dufour, Julian R. Martin, John D. Welch, Donald R. Wilkinson, Marvin G. Woempner
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Patent number: 4252587Abstract: A machine for assembling a polystyrene spool by friction welding polystyrene end flanges (in the form of discs) to the polystyrene cylindrical sleeve or barrel of a spool, used for holding wire or cable wound thereon. The machine comprises a pair of coaxially spaced rotary mandrels, driven by respective motors, on which the end flange discs are first manually mounted, and a pair of cradle members for supporting a cylindrical sleeve in coaxial relation between the two mandrels. A control system is provided for initiating rotation of the mandrels with the end flanges, then causing inward movement of the mandrels toward the opposite ends of the sleeve with a predetermined air pressure to cause softening of a stepped shoulder on the end of the central polystyrene hub of the end flanges.Type: GrantFiled: May 29, 1979Date of Patent: February 24, 1981Assignee: Piedmont Wire CorporationInventors: David R. Harden, Hugh E. Southerland
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Patent number: 4248656Abstract: A device for manufacturing laminated insulating glass plate bonded by adhesive, comprising a supporting table adapted for receiving glass sheets and interspaced spacer frames covered with an adhesive or adapted for soldering. A compression plate is arranged for lifting and lowering movement above the supporting table and is provided with a suction arrangement for raising a glass sheet and compressing it against a spacer frame glass sheet preassembly delivered on the supporting table. The device further comprises a feeding track, a washing device and a device for assembling the spacer frames.Type: GrantFiled: May 16, 1978Date of Patent: February 3, 1981Assignee: Glasmatec AGInventor: Fritz Hofmann
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Patent number: 4238261Abstract: A method and apparatus are provided for forming a zero tail length splice between a new roll of web material (26) and an expiring roll (24) without interrupting continuous movement of the web (W).Type: GrantFiled: October 2, 1978Date of Patent: December 9, 1980Assignee: The Black Clawson CompanyInventor: Richard S. Tetro
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Patent number: 4229244Abstract: A heat-sealing apparatus having a fixed upper clamping jaw which defines therein a continuously energized resistance-type heater. A lower clamping jaw is supported on the frame for pivoting movement about a substantially horizontal axis, so that the lower clamping jaw can be manually swung upwardly to engage the upper jaw and clamp the mouth of a filled preformed bag therebetween. The lower clamping jaw, when manually swung upwardly, activates a control arrangement which holds the lower jaw in its closed position for a predetermined time and at a substantially predetermined pressure, thereby permitting effective sealing of the bag mouth. The control arrangement automatically terminates the clamping engagement between the jaws, whereby the lower jaw automatically swings downwardly to permit release and removal of the sealed bag.Type: GrantFiled: July 17, 1978Date of Patent: October 21, 1980Assignee: Rennco IncorporatedInventor: Jack G. Swope
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Patent number: 4226661Abstract: In an apparatus and method for prefabricating pockets continuously, pocket material is directed lengthwise along a predetermined path. The pocket material is nipped between a feed roller and an idler roller for advancement first to an adhesive application station. In one embodiment, predetermined adhesive strips formed from ribbons comprising a layer of fusible adhesive on a backing are attached along the edges of the pocket material. If desired, a transverse strip of adhesive can also be applied. In the alternative, adhesive can be extruded directly onto the pocket material along the edges and transversely if desired. The pocket material is then advanced past a cutter and sheared to provide an individual pocket blank. The pocket blank is next aligned, after which the aligned pocket blank is transferred into position for transverse folding. In the preferred embodiment, the edges of the pocket blank having adhesive there along are folded inwardly simultaneously upon transfer.Type: GrantFiled: December 19, 1978Date of Patent: October 7, 1980Assignee: Haggar CompanyInventors: Joseph W. A. Off, Judson H. Early, William B. Greer
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Patent number: 4220492Abstract: A press for pressing assemblies or panels of multiple flat sheets or discs of insulating glass, has at least two pairs of upper and lower press members between which the panels are conveyed, and switches are disposed in the path of the panels to cause timed operation of the press members to sequentially press the leading, side and trailing edges of the panels as they pass between the upper and lower press members. Sensors are arranged in the path of the panels to detect the width of the panels and adjust the pressure exerted by the press members to prevent damage to narrow panels.Type: GrantFiled: September 2, 1977Date of Patent: September 2, 1980Assignee: Firma Karl LenhardtInventor: Karl Lenhardt
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Patent number: 4214936Abstract: A process for laminating thermoplastic film such as photosensitive film to a panel by continuous advancement and contact preheating of the panel to a lamination step which is discontinuous, being actuated according to position of the panel, to thereby uniformly space the resultant laminates from each other.Type: GrantFiled: October 24, 1978Date of Patent: July 29, 1980Assignee: E. I. Du Pont de Nemours and CompanyInventor: Matthew A. Del Bianco
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Patent number: 4202721Abstract: Heat is applied to a heat sealable material which may be in the form of a bag, for example, to seal a portion of the bag. This may be the top, bottom or side of the bag, and one form of heat sealable material is a plastic film such as polyethylene, either as a coating on the inside of a paper kraft bag or as a separate ply. The two portions to be heat sealed are juxtaposed and passed between endless metal bands which move in synchronism with the heat sealable material as a part of the conveyor means for the heat sealable material. Heat is imparted to the heat sealable material from the metal bands and it is imparted to the metal bands by electrical current conducted into the bands by collector rings on the pulleys over which the metal band is entrained. The heat is conducted through the kraft ply to the heat sealable material to cause the two portions to be sealed together.Type: GrantFiled: January 26, 1978Date of Patent: May 13, 1980Assignee: St. Regis Paper CompanyInventor: John P. Roberts
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Patent number: 4193833Abstract: Apparatus is disclosed for forming a seal between layers of a carton of thermoplastic coated paperboard material and the like in a sealant activating station wherein the sealant is activated and a clamping and sealing station wherein the sealant is allowed to cool and set under pressure to form a seal between the layers. The carton first moves to the activating station wherein the layers to be sealed are engaged on opposite surfaces by a vibrating horn and a movable first backup member in the form of an anvil for a time sufficient to activate the thermoplastic material which serves as a sealant. A first adjustable overtravel spring assembly biases a first backup means. The carton then moves to the clamping and sealing station where a movable pressure pad and a second backup member engage the layers having the activated thermoplastic thereon for a predetermined period of time to permit the activated thermoplastic to cool, set and form a seal.Type: GrantFiled: April 24, 1978Date of Patent: March 18, 1980Assignee: Ex-Cell-O CorporationInventor: John L. Young
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Patent number: 4190472Abstract: A system for processing and finishing stained glass slides includes a staining rack for receiving stained slides and including a device for discharging the stained slides therefrom, a conveyor for receiving the discharged stained slides from the staining rack, and for transporting the stained slides in a direction away from the staining rack; and a slide finishing station cooperating with the conveyor. The slide finishing station includes a device for depositing glue onto the stained slide; the stained slide carries the glue, and a device is provided for applying a cover glass to the glue-carrying slide.Type: GrantFiled: September 28, 1977Date of Patent: February 26, 1980Inventor: Alex Slonicki
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Patent number: 4186292Abstract: A desk mounted tubing sealer useable by either seated or standing operators heat seals liquid filled plastic tubing on command. The sealer generates a source of RF energy to heat seal plastic tubing on placement thereof between a fixed jaw and a tube compressing movable jaw. The jaws and attendant structure serves as a heat sink to dissipate heat and prevent a heat buildup during rapid repetitive operation of the sealer. Adequate space and drainage are provided about the operating components for cleaning purposes in the event of a burst tube during formation of a seal.Type: GrantFiled: October 11, 1977Date of Patent: January 29, 1980Assignee: Engineering & Research Associates, Inc.Inventor: Loren C. Acker
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Patent number: 4184305Abstract: A machine for automatically applying transfers such as tax stamps to multiple packages contained in a carton is disclosed. The transfer applying machine comprises a conveyor for intermittently and sequentially advancing cartons through an opening station, where the carton is opened to expose the packages therein, through a stamping station, where tax stamps in the form of heat or water transfers or ink printing are applied to each of the packages, and through a closing station where the carton is closed and resealed. The machine is adjustable to accommodate a variety of carton and package sizes and to apply the transfers to each package in the carton accurately while using stock rolls of transfers on which the transfers are mounted with a predetermined spacing that does not necessarily correspond to the spacing of packages within the carton.Type: GrantFiled: February 21, 1978Date of Patent: January 22, 1980Assignee: R. J. Reynolds Tobacco CompanyInventors: Max N. Baker, Julian R. Martin
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Patent number: 4177960Abstract: An automatic paper splicing control device including a depressing means for depressing a travelling paper onto a roll paper the surface to be joined thereby by means of an adhesive coated on the roll paper. A time T being required to contact the travelling paper with the roll paper. A pulse generating device generates pulse signals having a frequency proportional to the number of revolutions of the roll paper. A detector detects the adhesive coated surface arriving at a predetermined position. A counter counts the number of pulses generated by the pulse generating means. The control device modifies the time of starting of the depressing means in accordance with the number of pulses counted by the counter during the time T to thereby accommodate changes in the diameter size of the roll paper and its surface speed.Type: GrantFiled: December 5, 1977Date of Patent: December 11, 1979Assignee: Tokyo Kikai Seisakusho Ltd.Inventor: Hiroshi Nakagawa
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Patent number: 4159220Abstract: A method and apparatus for forming a seal between layers of thermoplastic coated paperboard or the like wherein there are different numbers of layers and varying thicknesses at different locations within the area to be sealed. The apparatus includes an anvil having a work surface for engaging one outer surface of the layers and a horn that vibrates at a predetermined frequency when energized. The horn has a work surface that opposes the work surface of said anvil.Type: GrantFiled: March 6, 1978Date of Patent: June 26, 1979Assignee: Ex-Cell-O CorporationInventors: Eugene R. Bosche, Earl W. Walke, Jr.
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Patent number: 4141775Abstract: A hydraulic board-laminating press comprises a series of laterally aligned hydraulic clamps supported in an inclined plane, each clamp having one fixed and one movable clamping jaw defining an upwardly opening mouth for receiving boards. The positions of the fixed jaws are adjustable along the inclined plane for providing camber in the beam produced. A series of infeed conveyor arms spaced along the lower side of the press deliver boards, adhesive-coated on one face, edgewise and one at a time into the mouths of the clamping jaws. An outer section of each conveyor arm can be extended and retracted toward and away from the clamps and can be raised and lowered so that the outer ends of the arms deliver boards into various positions within the space between jaw pairs to stack boards within the jaws along the inclined plane of the clamps.Type: GrantFiled: August 12, 1977Date of Patent: February 27, 1979Assignee: Bohemia, Inc.Inventors: Vernon L. Williams, Glen A. Westfall
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Patent number: 4094723Abstract: The splicer includes an edge guide assembly and a splicing assembly -- both being adjustable to guide and splice film of different widths. Film strips of selectable width are cut, spliced end-to-end, identified, and wound into a roll.Type: GrantFiled: April 12, 1976Date of Patent: June 13, 1978Assignee: J & H Manufacturing, Inc.Inventor: Herman L. Jones
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Patent number: 4094720Abstract: The cyclic application of glue to one face of strip elements continuously delivered edge-to-edge into a reciprocating kicker breech to be collimated into a row forming sheet assembly having thickness equal to the width of individual sheets is controlled by a cascaded series of relays whereby the remotely operated glue guns are not actuated by the final triggering event in the cycle unless a trigger safety device is released by a measurable addition to the cumulative sheet product within the preceding kicker cycle. Additionally, growth of the sheet accumulation is continuously monitored with an actual length comparison to a desired, set-point length. When the desired length is reached, glue gun operation is restrained for one cycle to provide an unbonded interface between the final strip of a preceding sheet and the first strip of a successive sheet.Type: GrantFiled: February 8, 1977Date of Patent: June 13, 1978Assignee: Westvaco CorporationInventor: David F. Talbert
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Patent number: 4093493Abstract: An apparatus and method for adhering rupturable photographic pods containing a photographic processing liquid onto a tape to form a photographic pod-tape product. The pod is usable, for example, in instant photograhic apparatus where the pod is interposed between image-recording and print receiving sheets and advanced between a pair of pressure applying members for rupturing the pod and dispensing and distributing the processing liquid between the sheets.Type: GrantFiled: September 19, 1975Date of Patent: June 6, 1978Assignee: Eastman Kodak CompanyInventors: Richard D. Welch, John E. Iversen
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Patent number: 4060442Abstract: A box-sealing machine in which prismatic boxes to be sealed by a sticking tape are caused to advance on a conveying horizontal path to arrive beneath a sealing head which applies a sticker to the two folded down top flaps of the box to seal the latter, the sealing head dropping onto the box wall to effect sealing and being lifted as sealing is completed, to repeat the operation for each box being presented to the sealing head in succession, the improvement consisting in that a cutoff valve is provided in the fluid-operated circuit which lifts and depresses the sealing head so as to stop the descending movement of the sealing head on the box when a preselected pressure is attained in said fluid-operated control circuitry. The boxes are not damaged by the weight of the sealing head insisting thereon during progress of the sealing operation proper, and exceedingly long up and down strokes of the sealing head are avoided when comparatively tall boxes are to be sealed.Type: GrantFiled: November 3, 1976Date of Patent: November 29, 1977Inventor: Augusto Marchetti
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Patent number: 4057451Abstract: A method of applying and securing mirror mounts to the inboard surfaces of windshields. The method includes using means for optically scanning the surface of the windshield and detecting the presence of antenna wires or other markings therein to be used as reference points for the placement of a mirror mount on the windshield. The method also includes using means responsive to such detecting means for placing and affixing a mirror mount on the windshield in a desired region thereon.Type: GrantFiled: January 26, 1976Date of Patent: November 8, 1977Assignee: Libbey-Owens-Ford CompanyInventor: Robert R. Beckham
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Patent number: 4049485Abstract: Apparatus for applying pressure in a controlled manner to a moving web of material for the purpose of transferring heat to the web passing over heating means, for curing the adhesive thus bonding together the component sheets making up the web, includes a plurality of pressure rolls resting directly or indirectly on the web, manual and automatic adjustments for varying the effective weight of the rolls to vary said applied pressure in accord with variations in the speed of the web, such being adjustable for varying the rate of said adjustment, and an arrangement for preselecting a condition such that at zero web speed, the effective weight has an initial positive or negative value.Type: GrantFiled: February 23, 1976Date of Patent: September 20, 1977Assignee: Simon Container Machinery LimitedInventor: Bjorn Iversen
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Patent number: 4011124Abstract: A nonwoven web of thermoplastic filaments is thermally bonded by conveying the web on a rotating hollow cylindrical roll having a pervious surface and passing hot air through the web into the roll to heat the filaments to the bonding temperature. The web is restrained against the roll surface with a stationary porous fabric under pressure developed by flow of the hot air through the fabric. Means for adjusting the length of fabric in contact with the web, and for measuring tension on the fabric, are provided in the apparatus.Type: GrantFiled: July 9, 1975Date of Patent: March 8, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventor: James Fletcher Baxter
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Patent number: 3996093Abstract: In an apparatus for producing transverse weld seams in a continuously fed two-ply web of plastics film and comprising a rotary welding cylinder about which the web is partially slung and which is provided with a plurality of welding bars at its periphery, the welding bars are steplessly adjustable radially of the cylinder, the smallest spacing between adjacent said transverse weld seams corresponds to twice the spacing between adjacent welding bars when the latter are in their retracted position, steplessly radially adjustable supporting members for the web are provided between the welding bars, and the welding bars are energizable by a sequence control in a sequence which is independent of the number of said welding bars.Type: GrantFiled: June 4, 1975Date of Patent: December 7, 1976Assignee: Windmoller & HolscherInventor: Aloys Winnemoller
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Patent number: 3993519Abstract: Spin welding head is rotated at a predetermined rate by a shaft through a clutch biased into engagement by springs carried by a clutch member which surrounds the shaft. After the rotating head is engaged against the workpiece, the shaft is advanced axially into the head at a predetermined rate through a predetermined distance whereupon shoulders on the head and clutch member interengage to halt the spring induced axial movement of the clutch member with the shaft. Axial movement of the shaft is continued to disengage the clutch and free the head for continued rotation independently of the shaft through its rotational inertia. The mass of the head and its rate of rotation are coordinated to keep the head spinning for long enough to complete the spin welding which was initiated while the head was being driven by the shaft. The shaft also forms a plunger which in each cycle of operation injects lubricant from a reservoir into a passageway system for lubricating the moving parts in the head.Type: GrantFiled: November 7, 1975Date of Patent: November 23, 1976Assignee: Olsen Manufacturing Company, Inc.Inventor: James A. Birkhold
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Patent number: 3979248Abstract: A decal transfer press for transferring thermally transferable images from paper backings to cloth articles such as T-shirts has an upper platen which is motor driven into pressure engagement with a lower platen when an operator depresses a control lever after initiating a brief start-up interval during which a heater of low thermal mass fastened to the underside of the upper platen attains a preset decal applying temperature. The upper platen is automatically stopped in the down position by deenergizing its drive motor when the pressure the upper platen applies to the lower platen, as manifested by the drive motor armature current, exceeds a preset amount.Type: GrantFiled: September 12, 1975Date of Patent: September 7, 1976Assignee: Images De Luxe, Inc.Inventor: Ernest A. Kussmaul
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Patent number: 3975226Abstract: Means for dry printing from a foil onto a workpiece having a contoured (inclined) surface. As the workpiece is advanced linearly beneath a foil applicator roll, an inclined surface on the workpiece will shift the roll in a vertical direction relative to a carriage, from which the roll is biased downwardly. Such roll movement is sensed and causes a force to be applied to the carriage, to move the carriage in a vertical direction so that it "follows" the roll. The carriage movement is limited to an amount sufficient that a pre-established downward biasing force on the roll will be restored, so that the roll pressure on the foil is maintained within an effective printing range. Further, a driving force is applied to the roll and foil that tends to move them faster than the rate at which the workpiece is being advanced.Type: GrantFiled: May 12, 1975Date of Patent: August 17, 1976Assignee: Automatic Industrial Machines, Inc.Inventor: Carl E. Boettcher
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Patent number: 3972766Abstract: The invention concerns a method and a press arrangement in which a panel is compressed between two heated plates of a press, and in which a vacuum is created between the two plates of the press during compression, one of the plates being flexible along one direction, wherein the curved flexible plate is applied to the panel to be pressed so that it contacts the panel on an elongated surface near a generatrix, the air pressure in the press around the panel is gradually lowered while the flexible plate is progressively developed to shape it into planar form, pressure is exerted on more and more surface starting from the surface of initial pressure so as to exert pressure over the entire surface of the flexible plate in order to shape it into planar form when the desired low pressure is attained.Type: GrantFiled: January 17, 1975Date of Patent: August 3, 1976Inventor: Andre Fontvieille
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Patent number: 3970506Abstract: The following specification describes apparatus for successively applying magnetic patches on a tape to successive passbooks. Each passbook is moved in sequence to engage a switch and is then stopped. The switch operates a solenoid, which engages a roller with the passbook and disengages the stop. Thereafter, a metered pulse is applied to the motor of a rotary drive to move the passbook and tape through the same distance and one patch is separated from the tape and applied to the passbook by the solenoid engaged roller. As the tape moves under control of the metered pulse, a succeeding patch on the tape is sensed by a photocell to maintain the motor and rotary drive operated. The drive continues to advance the tape and when the succeeding patch is no longer sensed by the photocell, it provides a signal to deenergize the motor and stop the tape. The succeeding patch is thus accurately positioned for application to the next passbook operating the switch.Type: GrantFiled: July 23, 1974Date of Patent: July 20, 1976Assignee: Bunker Ramo CorporationInventors: Okum Kwan, William A. Ottersen
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Patent number: 3963555Abstract: A drive arrangement pressurizing system and method for a veneer edge gluer apparatus having a low pressure, constant-drive infeed crowder section and a high pressure intermittent-drive outfeed crowder section for producing a continuous veneer ribbon which is moved in a straight line path of travel as it issues from the edge gluer.Type: GrantFiled: December 28, 1973Date of Patent: June 15, 1976Assignee: Simpson Timber CompanyInventor: Arnold A. Zweig
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Patent number: 3935053Abstract: An improved method of laminating thermosetting laminates is provided which comprises heating a laminate assembly which comprises a thermosetting resin, measuring the electrical impedance of the thermosetting resin to ascertain its lowest point, and applying full laminating pressure to the heated laminate assembly at that point of increased electrical impedance occurring subsequent to the ascertained lowest point of electrical impedance. An additional improvement is provided which consists of heating a laminate assembly which comprises a thermosetting resin, measuring the electric current generated by heating the thermosetting resin to ascertain its highest point and applying full laminating pressure to the heated assembly at that point of decreased generation of electric current occurring subsequent to the ascertained highest point of electric current.Type: GrantFiled: October 16, 1970Date of Patent: January 27, 1976Assignee: Photocircuits CorporationInventor: Rudolph J. Armstrong, Jr.