Patents Represented by Law Firm Smith & Schnacke
  • Patent number: 4859561
    Abstract: A developer sheet useful in forming reproductions which have a controllable gloss finish or in forming transparencies comprising a support having a layer of a finely divided, thermoplastic, developer material on the surface thereof, said developer material being capable of reacting with a color precursor to produce a visible image and being capable of coalescing into a thin film which imparts gloss to said image upon application of heat and/or pressure.The developer sheet comprising a support having a layer of a finely divided thermoplastic developer material on the surface thereof can additionally comprise oil-containing microcapsules such that upon microcapsule rupture, the oil plasticizes the developer material.
    Type: Grant
    Filed: July 14, 1987
    Date of Patent: August 22, 1989
    Assignee: The Mead Corporation
    Inventors: George D. Metz, Carl McCrary, Joseph G. O'Connor, Paul C. Adair, D. Scott Proehl, Edward J. Saccocio, James Dowler
  • Patent number: 4857406
    Abstract: The present invention provides a process for forming microcapsules having discrete capsule walls. An emulsion of an oily core material in a continuous aqueous phase containing a polymeric anionic emulsifier, a free radical addition polymerizable cationic monomer and a free-radical initiator is formed. Particles of the oily core material are enwrapped in a polymerizate of the cationic monomer produced by polymerization of the cationic monomer.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: August 15, 1989
    Assignee: The Mead Corporation
    Inventors: Gerhart Schwab, Richard L. Brandon
  • Patent number: 4854995
    Abstract: The present invention provides a process for producing a wound dressing delivery system. The wound dressing delivery system is formed by extruding first and second thermoplastic resins onto the surface of a carrier sheet to form first and second thermoplastic films; the first thermoplastic film functions as a temporary support for the second thermoplastic film and the second thermoplastic film functions as a wound dressing and has a moisture vapor transmission rate of greater than 300 grams/square meter/24 hours (ASTM E-96:37.8.degree. C./90% R.H.). The first thermpolastic resin is extruded onto the surface of the carrier sheet and the second thermoplastic resin is extruded onto the surface of the first thermoplastic film such that the first thermoplastic film is interposed between the carrier sheet and the second thermoplastic film.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: August 8, 1989
    Assignee: Bertek, Inc.
    Inventors: Klaus B. Kasper, Tom Yip
  • Patent number: 4853364
    Abstract: A developer composition comprising first and second developer materials, said first developer material being a finely divided thermoplastic phenolic resin and said second developer material being a finely divided thermoplastic vinylic or acrylic resin containing pendant developer moieties, said first and second developer materials being sufficiently compatible that upon heating they coalesce to form a non-tackey, and scratch resistant film.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: August 1, 1989
    Assignee: The Mead Corporation
    Inventors: Rong-Chang Liang, Emerson K. Colyer, Kelli J. Borello
  • Patent number: 4847969
    Abstract: A roll splitter for splitting apart rolls of paper that have been rewound onto separate cores positioned adjacent to each other on a common shaft such that adjacent edges of the rolls overlap. The roll splitter includes a vertically-extending, fixed post, a fixed base, a frame pivotably attached to the base, a pair of contact plates pivotably attached to the frame and being spaced apart from the post a distance sufficient to allow a roll of paper to be inserted therebetween and positioned on either side of the post, and a double-acting cylinder motor pivotably attached to the post and frame for pivoting the frame toward and away from the post. Two rolls having adjacent, overlapping edges are positioned between the post and the plates such that the overlapping edges are in registry with the post and are split apart as the cylinder motor urges the contact plates against the rolls, thereby urging the rolls against the post at the overlapping edges.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: July 18, 1989
    Assignee: The Mead Corporation
    Inventor: John B. Walker
  • Patent number: 4842981
    Abstract: An imaging system in which images are formed by image-wise exposing a layer containing a chromogenic material and a photosensitive composition in which at least the photosensitive composition is encapsulated in a layer of pressure rupturable capsules. Exposure and capsule rupture renders the chromogenic material image-wise accessible to the developer for a patterned image forming reaction.
    Type: Grant
    Filed: May 24, 1984
    Date of Patent: June 27, 1989
    Assignee: The Mead Corporation
    Inventors: Frederick W. Sanders, Gary F. Hillenbrand, Jonathan S. Arney, Richard F. Wright
  • Patent number: 4842980
    Abstract: A photohardenable composition comprising a free radical addition polymerizable or crosslinkable compound and an ionic dye-counter ion compound, said compound being capable of absorbing actinic radiation and producing free radicals which initiate free radical polymerization or crosslinking of said compound; and photosensitive materials incorporating the same.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: June 27, 1989
    Assignee: The Mead Corporation
    Inventors: Peter Gottschalk, Douglas C. Neckers, Gary B. Schuster
  • Patent number: 4840866
    Abstract: A photographic material exhibiting improved photographic characteristics comprising a photographic material comprising a support having a layer of microcapsules thereon, and an image-forming agent being associated with said microcapsules, said microcapsules including a mixture of a first subset of microcapsules and a second subset of microcapsules, said first and second subsets of microcapsules being associated with an image-forming agent for the same color, and said first subset of microcapsules providing a higher film speed than said second subset of microcapsules when said first and second subsets of microcapsules are exposed to a broad band white light source and developed under identical conditions.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: June 20, 1989
    Assignee: The Mead Corporation
    Inventors: Kerry Kovacs, William Simpson, Amy L. Burkholder, Russell K. Messer, Teresa M. Thomas
  • Patent number: 4838430
    Abstract: An envelope handling system for removing envelopes from an upper level conveyor, placing them in stacks on a lower level bucket conveyor, removing the stacks from the bucket conveyor and side-loading them into cartons, and sealing the cartons, conveying the cartons to a packing area, and forming the cartons into a horizontal column for placement into shipping containers. The system includes a spider feeder for removing the envelopes from an upper level conveyor and discharing them downwardly in a vertical direction, pivoting bottom fingers for receiving envelopes from the feeder and collecting them into a stack, hold back fingers for intercepting envelopes in a second stack above the bottom fingers, and transfer fingers for compressing a stack collected on the bottom fingers and urging the bottom fingers downwardly to place the stack onto the conveyor.
    Type: Grant
    Filed: May 12, 1988
    Date of Patent: June 13, 1989
    Assignee: The Mead Corporation
    Inventors: John A. Beeman, Floyd R. Solt, James L. Leep, Wayne S. Marvin, Troy F. Smith
  • Patent number: 4832955
    Abstract: The invention is directed to a pharmaceutical composition comprising a microencapsulated potassium salt encapsulated in a shell wall consisting essentially of from about 85% to about 97% ethyl cellulose and from about 3% to about 15% of an amphiphile based on the weight of the shell wall; wherein the weight of said shell wall is from about 3% to about 15% of the total weight of the microencapsulated potassium salt.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: May 23, 1989
    Assignee: Zetachron, Inc.
    Inventors: Wallace C. Snipes, Stephen J. Wagner
  • Patent number: 4830939
    Abstract: A method for forming an interpenetrating polymeric network containing a liquid electrolyte for use in solid state electrochemical cells which comprises forming a mixture of a liquid monomeric or prepolymeric radiation polymerizable, compound, a radiation inert ionically conducting liquid, and an ionizable alkaline metal salt; subjecting said mixture to actinic radiation to thereby crosslink said radiation polymerizable ionically conducting material and form a solid matrix containing said ionically conducting liquid; and electrode half elements and electrochemical cells incorporating said network.
    Type: Grant
    Filed: March 25, 1988
    Date of Patent: May 16, 1989
    Assignee: MHB Joint Venture
    Inventors: Mei-Tsu Lee, Dale R. Shackle, Gerhart Schwab
  • Patent number: 4831019
    Abstract: Antineoplastic pharmaceutical preparations and a method for treating neoplastic conditions using 4-demethoxy-N-trifluoroacetyldaunomycin and 4-demethoxy-N-trifluoroacetyldoxorubicin.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: May 16, 1989
    Assignee: Adria Laboratories, Inc.
    Inventors: Richard L. Wolgemuth, John P. Carter
  • Patent number: 4824755
    Abstract: A method is provided for rupturing photosensitive microcapsules which form a photosensitive layer on the surface of an imaging sheet which involves abrading the microcapsules such that upon subsequent pressure transfer, the resulting image has significantly greater dynamic range, significantly less midtone mottle and more highlight detail.
    Type: Grant
    Filed: February 5, 1987
    Date of Patent: April 25, 1989
    Assignee: The Mead Corporation
    Inventors: Lyudmila Feldman, Edward J. Saccocio
  • Patent number: 4822714
    Abstract: A transfer imaging system is disclosed wherein images are formed by image-wise exposing a layer comprising a chromogenic material and pressure rupturable capsules containing, as an internal phase, a photosensitive composition. In a preferred embodiment, the chromogenic material is encapsulated with the photosensitive composition. Upon exposure and capsule rupture the chromogenic material is image-wise transferrable to a developer or copy sheet where the chromogenic material reacts with a developer to form an image. Preferred systems are sensitive to U.V. or blue light in the wavelength range of 380 to 480 nm.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: April 18, 1989
    Assignee: The Mead Corporation
    Inventor: Frederick W. Sanders
  • Patent number: 4816368
    Abstract: A photosensitive material comprising a support having a layer of microcapsules on one surface thereof, said microcapsules containing a photocurable composition including a visible initiator dye, said dye directly or indirectly initiating polymerization of said photocurable composition upon exposure to actinic radiation and being essentially the only image-forming agent associated with said microcapsules.
    Type: Grant
    Filed: February 9, 1987
    Date of Patent: March 28, 1989
    Assignee: The Mead Corporation
    Inventor: Lisa M. Skaggs
  • Patent number: 4816371
    Abstract: A method for forming images which comprises image-wise exposing a photosensitive material to heat while simultaneously exposing said material to non-infrared actinic radiation, said material including a support and a layer of microcapsules containing an image-forming agent and a radiation curable composition on the surface of said support; said radiation curable composition being liquid at ambient temperatures and being substantially unhardened in the areas in which said material is simultaneously exposed to said heat and radiation and being substantially hardened in the areas in which said material is not simultaneously exposed to said heat and radiation; and subjecting said microcapsules to a uniform rupturing force such that said microcapsules image-wise release said image-forming agent.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: March 28, 1989
    Assignee: The Mead Corporation
    Inventors: Richard F. Wright, Paul C. Adair
  • Patent number: 4811089
    Abstract: The present invention relates to a high resolution full color exposure device using electronically generated masks, from computer output, for color separations which yield full color hard-copy. A blue color separation is electronically generated and a photosensitive material is exposed to a first wavelength through the blue color separation. A green color separation is then electronically generated and the same photosensitive material is exposed to a second wavelength through the green separation. A red color separation is electronically generated and the same photosensitive material is exposed to a third wavelength through the red color separation. Upon development of the photosensitive material, a full color image is formed.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: March 7, 1989
    Assignee: The Mead Corporation
    Inventors: T. Kay Kiser, Erik K. Nelson, Edward J. Saccocio
  • Patent number: 4801102
    Abstract: A method of manufacturing a roll coated with an absorbent, compressible material and used to support strip metal includes the steps of selecting a roll body having a rigid, cylindrical outer surface, attaching a leading end of a line to the outer surface, selecting a first elongate strip of compressible material, forming the strip into a V-shape, placing the line along the crotch of the V-shape, winding the line and the strip onto the outer surface such that the longitudinal edges of the strip extend in a substantially radial direction, and finally attaching the trailing end of the line to the roll body. In a preferred embodiment, the line is wound in a helical path from one end of the body to the other, and, simultaneously, the windings of the line and strip material are urged sidewardly in an axial direction to compress the strip to form a continuous surface.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: January 31, 1989
    Assignee: Monarch Machine Tool Co.
    Inventor: Charles R. Bradlee
  • Patent number: D302751
    Type: Grant
    Filed: January 7, 1988
    Date of Patent: August 8, 1989
    Inventor: Timothy Baldwin
  • Patent number: D302752
    Type: Grant
    Filed: March 4, 1988
    Date of Patent: August 8, 1989
    Inventor: Timothy Baldwin