Patents Represented by Attorney, Agent or Law Firm Walter N. Kirn
  • Patent number: 5736553
    Abstract: Pharmaceutical formulations and adhesive-coated sheet materials for the topical and/or transdermal delivery of 1-isobutyl-1H-imidazo?4,5-c!-quinolin-4-amine, including creams, ointments and pressure-sensitive adhesive compositions. Pharmacological methods of using the formulations and the adhesive-coated sheet materials of the invention in the treatment of viral infections.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: April 7, 1998
    Assignee: Riker Laboratories, Inc.
    Inventors: Steven M. Wick, Helen Jensen Schultz, Gregory R. Nelson, Amit K. Mitra, Stephen M. Berge
  • Patent number: 5736228
    Abstract: This invention discloses a film and a method for forming a film that can be printed directly using electrostatic priming processes, eliminating the need for transfer of electrostatic images from an electrostatic paper to a polymeric film. The film is durable and conformable to a variety of surfaces and optionally has a field of pressure sensitive adhesive thereon for adhering to such variety of surfaces.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: April 7, 1998
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: Terry L. Morris, William A. Neithardt
  • Patent number: 5733178
    Abstract: A method for texturing magnetic recording media substrates using a structured abrasive article including a flexible backing having a major surface and an abrasive coating, the abrasive coating attached to and at least substantially covering the entire total surface area of the major surface, where the abrasive coating includes a plurality of precisely-shaped three-dimensional abrasive composites, and the composites comprise a plurality of abrasive particles dispersed in a binder, which binder provides the means of attachment of the composites to the backing.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: March 31, 1998
    Assignee: Minnesota Mining and Manfacturing Co.
    Inventor: Michihiro Ohishi
  • Patent number: 5734775
    Abstract: A method and system for activating and deactivating a fiber optic splice within an optical fiber distribution frame while the fiber optic splice is releasably retained within a connector tray within the optical fiber distribution frame. The connector tray preferably includes multiple slots for supporting a number of mechanically activatable fiber optic splices which each include a jacket and a cap which is retained in a first intermediate position within the jacket while the fiber optic splice is deactivated and in a second fully inserted position within the jacket while the fiber optic splice is activated. An activator tool is provided which includes a stop member and slidably mounted pivot member which may be utilized to engage the fiber optic splice jacket and urge the cap into the fully inserted position in response to relative movement between the pivot member and the stop member in order to activate the fiber optic splice while the fiber optic splice is retained within the connector tray.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: March 31, 1998
    Inventors: Kenneth John Vidacovich, Jerome Allen Pratt
  • Patent number: 5733825
    Abstract: Undrawn, tough, durably melt-bondable, macrodenier, thermoplastic, multicomponent filaments, such as sheath-core and side-by-side filaments, comprising a first plastic component and a second lower-melting component defining all or at least part of the material-air boundary of the filaments. The filaments can be made by melt-extruding thermoplastics to form hot filaments, cooling and solidifying the hot filaments, and recovering the solidified filaments without any substantial tension being placed thereon. Aggregations of the filaments can be made in the form of floor matting and abrasive articles.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 31, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Philip G. Martin, Gary L. Olson, Dennis G. Welygan
  • Patent number: 5733652
    Abstract: The present invention provides a banding system, banding tape and method of using the same, each of which is particularly useful a variety of items such as flowers, straws, pens, pencils, newspapers, and vegetables. The banding system comprises a first strip and second strip. The first strip comprises an elastic polymeric material having a percent recovery of at least 50% after being elongated to 100% of its original length. The first and second strips are capable of being bonded together. The banding tape comprises a strip of elastic polymeric material having inner and outer surfaces and a nontacky layer on at least a portion of at least one of the surfaces. The method of using the banding system or tape of the invention comprises the steps of collecting one or more objects into a bundle, wrapping, stretching and securing the system or tape around the bundle, and allowing the elastic strip to at least partially recover to exert a compressive force on the bundle which holds the bundle together.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: March 31, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alesia A. Stowman, James J. Kobe
  • Patent number: 5733698
    Abstract: The invention is photoconductor construction comprising a release layer which controls the carrier liquid on the surface of the photoreceptor and minimizes beading of toner carrier liquid. According to one embodiment this invention is a photoconductor construction comprising a photoconductor layer applied to an electroconductive substrate, an interlayer applied to the photoconductor layer, and a release layer over the interlayer. The release layer is a swellable polymer. According to another embodiment this invention is a photoconductor construction comprising a polymeric release layer that has a surface with an average roughness, Ra, of at least 10 nm.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: March 31, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Gaye K. Lehman, Claire A. Jalbert, Edward J. Woo, Kathryn R. Bretscher, James A. Baker, Mark C. Berens
  • Patent number: 5730126
    Abstract: A stud/eyelet for a biomedical electrode is disclosed. The stud/eyelet has at least one hole in the base to reduce manufacturing cost, provide increased surface contact with ionically conductive media, and to increase anchorage for the ionically conductive media.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: March 24, 1998
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: Steven S. Kantner, Hatim M. Carim
  • Patent number: 5729963
    Abstract: A flexible carrier tape for storage and delivery of components by an advancement mechanism, comprises a strip portion, a plurality of aligned pockets spaced along the strip portion for carrying the components, wherein each pocket includes a bottom wall, and a non-pressure sensitive adhesive comprising a thermoplastic elastomer block copolymer on the bottom wall of the pocket for retaining a component in the pocket.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Gerald C. Bird
  • Patent number: 5729333
    Abstract: A method is provided for predicting a property of a matter of biological origin, such as biological fluid, containing water, in a dynamic condition where the biological fluid may be approximated to contain two compartments where one compartment has a proportionally larger or smaller amount of water than the other compartment having the property of interest. The method involves establishing a training set in the near-infrared (NIR) region with independent quantification of the property of the fluid using known techniques. The training set is mathematically analyzed according to a correlation developed by regression analysis after employment of a pre-processing technique such as a multiple derivative transformation of spectra or a ratioing of two wavelengths in the spectra. The result is a mathematical transformation equation which quantitatively relates spectral intensities at specific wavelengths to the property of interest.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: March 17, 1998
    Assignees: Minnesota Mining and Manufacturing Company, The Board of Regents of The University of Washington
    Inventors: David W. Osten, Hatim M. Carim, James B. Callis
  • Patent number: 5728446
    Abstract: There is provided a liquid management film for use in rapid transport of liquid. The liquid management film is a thermoplastic film having at least one microstructured hydrophilic surface with a plurality of primary grooves. The primary grooves have at least two secondary grooves, each of said secondary grooves forming at least one notch which notches are substantially parallel and separated by a secondary peak. The notches or secondary grooves have an included angle of from about 10.degree. to about 120.degree., the depth of one of said secondary grooves (the height of the secondary peak over the notch) being at least 5 microns and said depth being from about 0.5 to about 80 percent of the depth of the primary groove. The said notches have a radius of curvature of less than about 15 microns and the primary and/or secondary groove depth and width varies by less than 20 percent for each groove over a given length of the film.
    Type: Grant
    Filed: October 23, 1995
    Date of Patent: March 17, 1998
    Inventors: Raymond P. Johnston, Robert T. Fehr, James A. Servatius
  • Patent number: 5727988
    Abstract: An apparatus and method for accurately positioning a wide tolerance work piece, wherein the work piece has a first portion with a known reference surface and a second portion whose position relative to the first portion is not exactly known. The apparatus includes a locating fixture for positioning the first portion of the work piece in a known relationship to the locating fixture. A work piece holding fixture having at least one non-synchronous gripping device conforms to the unknown position of the second portion of the work piece and holds the first portion of the work piece in the known position.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: March 17, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Arthur P. Luedeke, Bradley W. Keller, Andrew A. Larson
  • Patent number: 5725789
    Abstract: Oil and water repellent compositions for the treatment of fiber containing substrates such as fabric and the like, substrates treated with these compositions and methods for the treatment of substrates are described. The compositions of the invention comprise (a) a polyalkoxylated polyurethane and (b) a fluorochemical acrylate polymer comprising the polymerized reaction product of a fluorinated acrylate or methacrylate monomer, at least one alkyl acrylate or methacrylate monomer and a polymerizable cationic emulsifier comprising a quaternary amine surfactant. Additionally, (c) a polyalkylene glycol fluorochemical acrylate copolymer and (d) a fluorochemical adipate ester can also be included within the compositions. The above components are blended together within the composition at a weight ratios of (a):(b), or (a)+(c):(b), or (a)+(c)+(d):(b) of from 19:1 to 1:19 and preferably about 1:1.
    Type: Grant
    Filed: November 13, 1996
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Charles D. Huber, Michael A. Yandrasits
  • Patent number: 5725947
    Abstract: The invention relates to a film composite comprising a thin flexible backing bearing a first layer of adhesive comprising a blend of from 10-99 wt. % of an acrylic latex and from 1 to 90 wt. % of heat-activatable urethane latex, and a second adhesive layer applied on top of said first adhesive layer comprising a pressure-sensitive adhesive exhibiting an initial adhesion as to allow reliable positioning and initial removability of said film composite on a substrate and an adhesion build-up to permanently bond the film composite to the substrate after a prolonged dwell time. The invention further-more relates to the use of a film composite comprising a thin flexible backing bearing a first adhesive layer comprising a blend of from 10-99 wt. % of an acrylic latex from 1 to 90 wt.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: Heiner Johannsen, Richard W. Coates
  • Patent number: 5725989
    Abstract: A thermal transfer donor element is provided which comprises a support, a light-to-heat conversion layer, an interlayer, and a thermal transfer layer. When the above donor element is brought into contact with a receptor and imagewise irradiated, an image is obtained which is free from contamination by the light-to-heat conversion layer. The construction and process of this invention is useful in making colored images including applications such as color proofs and color filter elements.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: March 10, 1998
    Inventors: Jeffrey C. Chang, John S. Staral, William A. Tolbert, Martin B. Wolk, Claire A. Jalbert, Hsin-hsin Chou
  • Patent number: 5725841
    Abstract: A medicinal aerosol formulation containing a particulate drug and a dispersing aid derived from a hydroxyacid, a mercapto acid, or an amino acid.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Daniel C. Duan, James S. Stefely, David W. Schultz, Chester L. Leach
  • Patent number: 5725647
    Abstract: Pigmented inks are disclosed comprising an aqueous medium, a pigment, a dispersant, and a humectant. Inks are disclosed where the humectant is a sulfonated polyethylene oxide which provides long decap times and fast drying of the printed image. Inks are further disclosed where the dispersant is an alkyl(sulfophenoxy)benzenesulfonic acid or its salt. Such dispersants reduce the agglomeration of pigment particles and reduce or eliminate the deposition of foreign substances on heater elements during the jetting process. A variety of pigments, dispersants, humectants, and aqueous media can be used. Combinations of a sulfonated polyethylene oxide humectant and an alkyl(sulfophenoxy)benzenesulfonic acid (salt) dispersant provide inks with good stability, few kogation problems, long decap times and relatively fast drying times.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining And Manufacturing Company
    Inventors: James G. Carlson, Richard J. Kuo
  • Patent number: 5725617
    Abstract: Abrasive articles having an encapsulated lubricant are described. In one aspect, the articles are characterized by a base substrate comprising a plurality of polymeric fibers adhered to one another at mutual contact points, the substrate having a base weight within the range from 20 to 10,000 g/m.sup.2, abrasive grains adhered to the substrate and a plurality of lubricant capsules adhered to the substrate the capsules comprising a continuous shell with lubricant therein, and the shell comprising a cured thermosetting resin. In another aspect, a composite abrasive article is characterized by at least two layers of the aforementioned abrasive article compressed together and adhered by a binder, the composite article having a flexural modulus of not more than 100 kgf/cm.sup.2.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: March 10, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Hironori Hagiwara, Ikuko Yamato
  • Patent number: 5723513
    Abstract: Radiation-sensitive organo-halogen compounds that have a photo-labile halomethyl-1,3,5-triazine moiety and a polymeric moiety within the same molecule. The compounds of this invention are comprised of a polymeric moiety having attached or incorporated within its structure at least one 1,3,5-triazine nucleus, said triazine nucleus having at least one halomethyl substituent attached to a carbon atom of the triazine nucleus. These compounds are capable of being stimulated by actinic radiation at wavelengths of from about 250 to about 900 nanometers to generate free radicals and/or acids. The compounds of this invention are useful as photoinitiators in free radical polymerization reactions, oxidation-reduction reactions, or reactions sensitive to acid, and they also exhibit the capability to crosslink upon exposure to light.
    Type: Grant
    Filed: March 8, 1996
    Date of Patent: March 3, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James A. Bonham, Mitchell A. Rossman, Richard J. Grant
  • Patent number: D392181
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: March 17, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: James L. Bries, Johannes N. Gaston, Douglas J. VanOrnum, Paul E. Raber, Pauline A. Pieper