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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
AM International, Inc. Patents
Assignee:
AM International, Inc.
Address:
Mount Prospect, IL
No. of patents:
135
Patents:


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Patent Number Title Of Patent Date Issued
5568917 Apparatus for calipering a collated assemblage October 29, 1996
A calipering assembly (40) is provided for use along a collating conveyor (14) having collated assemblages (20) thereon. The calipering assembly comprises a movable member (60) in the form of a wheel having an outer circumferential surface which engages a collated assemblage when the
5531433 Sheet material handling apparatus July 2, 1996
A sheet material feed drum has a plurality of grippers which are spaced apart by a first distance, measured along the periphery of the feed drum. Sheet material is transferred from the feed drum to a conveyor. The conveyor has a plurality of pusher elements which are spaced apart by a
5527025 Apparatus and method for forming sheet material assemblages June 18, 1996
An apparatus for forming sheet material assemblages includes a plurality of pockets which are movable past a plurality of sheet material feeders. Each of the pockets includes a sheet material support which is movable between any one of a plurality of closed positions and an open conditio
5511769 Sheet material collating apparatus April 30, 1996
A sheet material collating apparatus includes a conveyor and a plurality of hoppers which hold sheet material articles. Feed drums are operable to sequentially feed sheet material articles from each of the hoppers to sheet material receiving locations on the conveyor. Each of a plurality
5499803 Collator without a main line drive shaft March 19, 1996
A collator (10) comprises a collating conveyor (12) and a plurality of hopper sections (20, 40, 60) located along the conveyor. Each section includes at least one signature pile support (21-24, 41-44, 61-64) for holding signatures to be fed to the conveyor. Each section also includes a
5447302 Differential gripper mechanism September 5, 1995
An apparatus for removing paper products from a stack on a hopper comprises a rotatably mounted gripper drum for rotating about a central axis at a substantially constant angular velocity. A stationary cam is rigidly mounted adjacent the gripper drum. A gripper mechanism is mounted on th
5443639 Glue application system for book binding August 22, 1995
A glue application system (10) for applying glue to books (12) moving from a binder (16) along a predetermined path (14) includes a first roller (30) which rotates in the predetermined path to apply glue to the books. A heater (114) maintains the temperature of the first roller at a
5441375 Cover breaker assembly and method August 15, 1995
An improved cover breaker assembly may be used to sequentially apply covers to books of different thicknesses or to books of the same thickness. The cover breaker assembly includes inner and outer breaker members which are engageable with a cover on each of the books in turn. The inner b
5392700 Apparatus for use in handling signatures February 28, 1995
A stacker assembly receives signatures. A jogger assembly engages signatures supported by the stacker assembly to align edge portions of the signatures. A turntable receives the signatures from the stacker assembly and rotates the signatures to offset relatively thick folded edge portion
5374093 Gripper assembly December 20, 1994
A gripper assembly for clamping articles comprises a first clamp member and a second clamp member pivotal relative to the first clamp member. An actuator pivots the second clamp member relative to the first clamp member from an open position into a closed position. A coil spring is compr
5330169 Apparatus and method for handling sheet material articles July 19, 1994
An apparatus for use in handling sheet material articles includes a feed drum which is rotatable to sequentially pull sheet material articles from a hopper. A separator assembly includes a rotatable separator disk in which a plurality of gaps are formed. A plurality of suction applicator
5326209 Method and an apparatus for forming a plurality of individual books in a predetermined sequence July 5, 1994
An apparatus for forming a plurality of individual books in a predetermined sequence includes a main conveyor having a plurality of spaced collating stations for receiving signatures. A plurality of feeders selectively feed signatures to the spaced collating stations as the main conveyor
5312223 Apparatus for stacking signatures May 17, 1994
A stacker assembly receives signatures and supports the signatures as an intermediate stack is formed. A jogger assembly engages an intermediate stack supported by the stacker assembly to accurately align edge portions of the signatures. The stacks of signatures are deposited onto a turn
5281507 Treatment to enhance transfer in liquid toner electrophotography January 25, 1994
The present invention resides in a method for transferring images from an image-bearing surface, to a moving web or sheet. The image-bearing surface is advanced in a predetermined direction, and the receptor area of the image-bearing surface is exposed to successive images. The successiv
5265858 Apparatus for converting a sheet material feeder from on edge to bottom feed November 30, 1993
An existing sheet material feeder has a feed tray which holds sheet material in an on-edge orientation in which side surfaces of the sheet material are generally vertical. An apparatus is provided to convert the sheet material feeder to one having a feed tray which holds sheet material
5261520 Custodial book transfer system November 16, 1993
An apparatus for transferring a plurality of books from a binder conveyor to another conveyor. The apparatus includes a plurality of grippers for receiving the books from the binder conveyor and gripping the books. The apparatus includes a conveyor for moving the grippers at a first inte
5250963 Imaging diode array and system October 5, 1993
A large scale LED exposure array and system for printers, and unique methods of inputting data to and operating such an array, are disclosed. The array can be loaded and refreshed with data information at rates compatible with high speed printing, and forms part of an electronic image
5230979 Method of electrostatic printing and toner used in such method July 27, 1993
A liquid toner for developing electrostatic latent images, at speeds in excess of 100 ft./min., by electrophoretic movement of pre-charged particles of a thermoplastic polymer in a nonpolar carrier liquid, which reduces drag is disclosed wherein the particles are present in about 10%
5225848 Imaging diode array and system July 6, 1993
A large scale LED exposure array and system for printers, and unique methods of inputting data to and operating such an array, are disclosed. The array can be loaded and refreshed with data information at rates compatible with high speed printing, and forms part of an electronic image
5205215 Oscillating roller mechanism for printing or duplicating machines April 27, 1993
A mechanism for axially oscillating a distribution roller in a printing, duplicating or like machine, in which a drive shaft extends generally coaxially of the distribution roller. The mechanism is operatively associated between the drive shaft and the roller and includes right hand
5197382 Copy sheet proofing system March 30, 1993
A sheet proofing mechanism for a printing, duplicating and like machine wherein sheets are delivered seriatim by a conveyor in a path over a receiving tray whereat the sheets drop onto a stack of sheets in the tray. Releasable gripping fingers are provided on the conveyor, and stripping
5177877 Dryer-fuser apparatus and method for high speed electrophotographic printing device January 12, 1993
A dryer-fuser apparatus and method are provided to evaporate volatile, flammable carrier liquid from and to fuse solids color-imparting particles to a travelling web of paper in a high speed electrophotographic printing process. Volatiles from the dryer are vented to a catalytic converte
5172802 Selective release assembly for gripper clamps December 22, 1992
A release assembly is mounted adjacent a track to release selected ones of a plurality of gripper clamps movable along the track past the release assembly. The release assembly includes a cam mounted for movement relative to the track between a first position in which the cam is enga
5143364 Suction control system for printing or duplicating machines September 1, 1992
A printing or duplicating machine has a suction control system which includes a source of vacuum and a conduit connecting the source of vacuum to a suction feeder. An operator panel is used to set a pattern of relative weight of each sheet in a stack. A controlled bleed valve is oper
5121146 Imaging diode array and system June 9, 1992
A large scale LED exposure array and system for printers, and unique methods of inputting data to and operating such an array, is disclosed. The array can be loaded and refreshed with data information at rates compatible with high speed printing, and forms part of an electronic image
5077172 Carrier web transfer device and method for electrophotographic printing press December 31, 1991
A transfer mechanism and method are provided for utilization in a high speed electrophotographic printing process of the type wherein the electrophotoconductive cylinder on which the image is formed travels at a peripheral speed of at least 100 ft./min. Transfer of the image is made to
5075723 Diazo photocopy machine with automatic sheet separator December 24, 1991
A diazo copy machine comprises a roll of diazo sensitized copy paper cradled between a pair of drive rollers above an exposure apparatus. The copy machine is activated by insertion of an original tracing sheet whereupon the copy paper and original are automatically fed in superimpose
5050494 Fine adjustment system of finishing head in a printing, duplicating and like machine September 24, 1991
A system for adjusting a finishing head relative to an impression cylinder in a printing, duplicating and like machine wherein copy sheets are fed through a printing couple and then to a finishing couple which includes the impression cylinder. The finishing head includes a finishing whee
5043749 Printing press and method August 27, 1991
A press, and a process of printing a combination of fixed and variable data on such press, wherein printed images are created by direct digital driving of an imaging device at normal press speed, optionally followed by one or more processing operations in the case of business forms. The
5033381 Adjustable mounting bracket for printing or duplicating machine roller July 23, 1991
A bracket assembly for receiving and positionally adjusting the shaft end of a distribution roller in a printing, duplicating or like machine. A pin head structure is mounted on a framework of the machine. A triangular array of pins project inwardly of the pin head axially of the roller
5033376 Segmented moisture fountain roller assembly for printing or duplicating machines July 23, 1991
A moisture distribution roller assembly for use in a moisture feeding system of a printing, duplicating or like machine includes a shaft with a plurality of roller sections slidably mounted thereon. The roller sections are selectively positionable on the shaft at varying axial positions
5031533 Adjustable ink fountain for duplicating machines July 16, 1991
An ink fountain assembly for use in duplicating machines, such as rotary offset lithographic machines. A fountain trough is defined by an elongated blade extending along one side of the trough and an ink fountain roller extending along the other side of the trough defining a gap therebet
5022321 Distribution roller drive system for printing or duplicating machines June 11, 1991
A drive system between a master cylinder, a form roller and a distributor roller in a moisture system of a printing, duplicating or like machine. The surface of the master cylinder has a longitudinal gap within which master clamping hardware are disposed. The drive system includes a firs
5019868 Developer electrode and reverse roller assembly for high speed electrophotographic printing devi May 28, 1991
A developer electrode and reverse roller assembly are provided for use in conjunction with the rotatable print cylinder of a high speed electrophotographic printing press. The normal tendency of toner particles to stick to the developer electrode is inhibited due to the velocity by w
5017964 Corona charge system and apparatus for electrophotographic printing press May 21, 1991
In a high speed electrophotographic printing apparatus and method wherein a charge of desired polarity and potential is applied uniformly to a photoconductive surface of a rapidly rotating drum, an improvement is provided which comprises an electrometer located adjacent the drum surface
5016028 High density multi-channel array, electrically pulsed droplet deposition apparatus May 14, 1991
A high density multi-channel array, electrically pulsed droplet deposition apparatus comprises a bottom sheet of piezoelectric material poled in a direction normal to said sheet and formed with a plurality of parallel channels mutually spaced in an array direction normal to the length of
5003352 Liquid toner supply system and method March 26, 1991
An automated system and method are provided to supply a liquid toner dispersion to the printing station of a high speed electrophotographic printing press. A highly concentrated form of the liquid toner dispersion is supplied in a first container. Density measurement of the liquid toner
4998715 Copy sheet holddown system March 12, 1991
A copy sheet feeding system for use in a printing, copying, duplicating and like machine includes a conveyor board for moving copy sheets thereover in seriatim fashion. A vacuum chamber extends lengthwise of the conveyor board, with openings extending longitudinally of the conveyor board
4984458 System for measuring the relaxed length of a moving web January 15, 1991
A method and apparatus for measuring the relaxed length of a moving web includes forming a plurality of detectable marks along the length of the web at a repeated length interval. First and second detectors positioned along the web path are separated by a known distance S. A first tensio
4973981 Method of testing components of pulsed droplet deposition apparatus November 27, 1990
A method for testing body components of pulsed droplet deposition apparatus comprises applying a variable frequency voltage to the electrodes of each of a number of selected channel wall elements. The resulting impedance variations are used to determine the natural frequencies of the sel
4967659 System for readily interchanging an adjustable printing head on a rotatable shaft November 6, 1990
In a duplicating machine, a system for readily interchanging a printing head on a permanent rotatable shaft of a printing couple of the machine, to facilitate rapid changing of printed indicia in short run duplicating situations. An elongated manually manipulatable segment is readily
4947685 System for measuring the repeat length of a moving web August 14, 1990
A method and apparatus for measuring the repeat length (L) of a moving web includes forming a plurality of detectable marks along the length of the web at a repeated length interval. First and second detectors positioned along the web path are separated by a known distance (S). The repea
4929256 Multi-disc cutter and method of manufacture May 29, 1990
An abrasive multi-disc cutter is formed by uniformly coating a cylindrical holder with a mixture of diamond powder and resin. The holder is rotated about its longitudinal axis while one or more beams of laser energy are used to ablate the resin for forming a plurality of annular depressi
4905599 Notch cylinder unit March 6, 1990
A notch cylinder unit for selectively activating a plurality of impaling pins such as might be used for separating and removing a strip from a paper web. The notch cylinder unit comprises a cylinder having a longitudinally extending hole and a hollowing driving shaft extending theret
4897332 Charge control agent combination of lecithin and pyrrolidone polymer for liquid toner and method January 30, 1990
Improved charge control agent for electrophotographic liquid toners comprising a mixture of lecithin and an alkylated poly-N-vinyl pyrrolidone polymer is disclosed. Methods include applying liquid toners comprising such charge control agent mixture to an electroconductive substrate that
4896875 Copy sheet pull guide mechanism January 30, 1990
A pull guide mechanism for moving a copy sheet transversely of a conveyor board into proper registration in a printing, duplicating or like machine. A drive wheel is rotatably mounted in the conveyor board and a pressure wheel is disposed above the conveyor board for sandwiching a copy s
4892787 Coated paper for ink jet printing January 9, 1990
Coated paper useful for ink jet printing comprises a cellulosic substrate coated with an intimate mixture of a particulate pigment with a binder comprising a mixture of an acrylic resin and polyvinyl alcohol.
4891286 Methods of using liquid tower dispersions having enhanced colored particle mobility January 2, 1990
Methods of using improved liquid toner dispersions in high-speed electrophotography are disclosed wherein pigment charge homogeneity and mobility are improved by the addition of effective carrier liquid-insoluble monomeric organic acids to the toner solution. Preferred acids include
4887100 Droplet deposition apparatus December 12, 1989
A pulsed droplet ink jet printer has relatively long thin ink channels extending in parallel between an ink manifold 13, and a nozzle plate 5 providing a nozzle 6 for each channel. Side walls 11 may be formed substantially entirely of piezo-electric material so as to be displaceable
4879568 Droplet deposition apparatus November 7, 1989
A pulsed droplet ink jet printer has at least one channel communicating with a nozzle. The side wall of the channel is formed as a shear mode piezo-electric actuator. Electrodes applied to the actuator enable an electric field to be applied such that the actuator moves in the direction
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