Patents by Inventor Richard F. Wright

Richard F. Wright has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4448516
    Abstract: This invention relates to image developing apparatus and specifically a developer roll for use in combination with a color producing substrate. In accordance with this invention, a color is formed by the reaction of isolated chromogenic materials. A first chromogenic material is typically a color precusor of the electron donating type whereas the second chromogenic material is typically identified as a color developer and is generally of the electron accepting type. In this invention a developer roll bunishes the active coating on the color producing substrate to promote the reaction of the color forming ingredients. This developing action is accomplished without "rupturing pressure" or without the necessity for pressure rollers which define a pressure nip.
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: May 15, 1984
    Assignee: The Mead Corporation
    Inventors: Jonathon S. Arney, Richard F. Wright
  • Patent number: 4440846
    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: November 12, 1981
    Date of Patent: April 3, 1984
    Assignee: Mead Corporation
    Inventors: Frederick W. Sanders, Gary F. Hillenbrand, Jonathan S. Arney, Richard F. Wright
  • Patent number: 4416966
    Abstract: A capsular imaging system wherein the imaging material comprises a support coated on one surface with a layer of capsules containing, as an internal phase, a radiation sensitive composition and a decolorizing agent; images are formed by a dry process wherein the aforesaid sheet is image-wise exposed; exposure of the sheet controls release of the decolorizing agent from the capsules which image-wise reacts with a dye layer and causes a color change. Embodiments are also disclosed in which the decolorizing agent inhibits or reverses the color forming reaction between a dye precursor and a dye developer.
    Type: Grant
    Filed: August 25, 1982
    Date of Patent: November 22, 1983
    Assignee: The Mead Corporation
    Inventors: Frederick W. Sanders, Richard F. Wright, Paul C. Adair
  • Patent number: 4399209
    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: November 12, 1981
    Date of Patent: August 16, 1983
    Assignee: The Mead Corporation
    Inventors: Frederick W. Sanders, Gary F. Hillenbrand, Jonathan S. Arney, Richard F. Wright
  • Patent number: 4365018
    Abstract: A self-exposing imaging element is disclosed comprising a support member, a light sensitive layer, and a layer containing reagents which will chemically react in a chemiluminescent reaction to produce light which exposes the light sensitive layer when in contact with an original. Reagents in the light generating layer are physically or chemically segregated prior to exposure to prevent reaction, for example, by encapsulation of one of the reactants, the reaction solvent, or a catalyst. To copy the self-exposing imaging element is placed in contact with an original, the light generating layer is activated by causing the reactants to mix or introducing the reaction solvent or catalyst and the radiant energy generated produces an image of the original in the radiation sensitive layer by reflex imaging or direct transmission imaging.
    Type: Grant
    Filed: May 11, 1981
    Date of Patent: December 21, 1982
    Assignee: The Mead Corporation
    Inventors: E. Bryant Crutchfield, Richard F. Wright, Paul C. Adair, Seth O. Harris, Dale R. Shackle, Dennis L. Williams
  • Patent number: 4106861
    Abstract: The present invention is directed toward light-transmitting photochromic articles with low haze levels under illumination and processes for forming said articles without employing high temperature chemistry or heat treatments to initiate photochromism.
    Type: Grant
    Filed: July 12, 1976
    Date of Patent: August 15, 1978
    Assignee: Polaroid Corporation
    Inventors: William R. Brewer, Kenneth S. Norland, Richard F. Wright
  • Patent number: 3936357
    Abstract: A diagnostic test device comprising an absorbent medium adapted to receive and retain a measured amount of fluid containing the substance to be tested and reagents adapted to contact said fluid to provide a visual determination of the presence and/or concentration of the substance, wherein the absorbent medium comprises a substantially non-swellable material of substantially uniform and constant porosity and thickness.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: February 3, 1976
    Assignee: Polaroid Corporation
    Inventors: Terry W. Milligan, Richard F. Wright
  • Patent number: 3933594
    Abstract: A diagnostic test device comprising a first and second sheet attached at a leading edge; an absorbent medium intermediate said first and second sheet in spaced relationship to said sheets. The fluid containing the substance to be analyzed is placed on the absorbent medium. Compressive force would then be applied to the test device to remove excess fluid from the absorbent medium and to bring the fluid into contact with the first and second sheets which contain reagents adapted to react with the substance to provide a colorimetric determination of the presence and/or concentration of the substance.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: January 20, 1976
    Assignee: Polaroid Corporation
    Inventors: Terry W. Milligan, Richard F. Wright