Patents Assigned to Minnesota Mining & Manufacturing Company
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Patent number: 6464138Abstract: A library terminal permits a user to execute a loan transaction without assistance. The library terminal (i) provides a visible scan line from a bar code reader indicating the correct positioning of the bar code on a circulating item, (ii) leads a user through a loan transaction, (iii) provides an explicit feedback to a user when an article has an improper position on the article receiving area, (iv) both checks out and checks in circulating items, (v) stores fonts in bit maps of screen displays instead of in a separate font memory, (vi) integrates a security marker reader, a printer, and a controller in the same housing, (vii) processes financial transactions related to the borrowing of circulating items, and/or (viii) displays actions for helping the user to correct errors in use of the terminal.Type: GrantFiled: November 15, 2000Date of Patent: October 15, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: James E. Fergen, John E. Nelson, Thomas J. Brace, Michael J. Kieffer, Gerald G. Marsolek, Joseph E. Schwietz, Jr., Mitchell B. Grunes, Kathleen M. McLeod
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Patent number: 6461787Abstract: A mass transfer imaging element comprising a substrate having a surface colorant layer containing a pigment to be imagewise transferred, wherein said colorant layer comprises a fluorocarbon additive in an amount to provide a fluorocarbon additive:pigment weight ratio of at least 1:20.Type: GrantFiled: December 21, 1999Date of Patent: October 8, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: David Warner, Ranjan Chhaganbhai Patel
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Publication number: 20020140556Abstract: An electronic article surveillance marker is disclosed, including a signal producing layer and a signal blocking layer. The signal producing layer includes flux collection portions joined by magnetic switching sections each having a major axis A, and the signal blocking layer comprises signal blocking elements overlying each flux collection portion. The elements each have at least one boundary that overlies a magnetic switching section and preferably has a tangent T that is not perpendicular to the major axis A of that magnetic switching section. Methods of making the inventive marker are also disclosed.Type: ApplicationFiled: February 26, 1999Publication date: October 3, 2002Applicant: MINNESOTA MINING AND MANUFACTURING COMPANYInventor: CHING-LONG TSAI
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Patent number: 6438447Abstract: An article inventory tracking and control system tracks and controls removal of articles from a secured facility. Exemplary facilities in which the system may be useful include libraries, rental stores and retail stores. Each article is marked with an EAS marker to prevent unauthorized removal. In the system, each user of a facility and each article in the facility is uniquely identifiable. Upon receiving the user and article information, the system queries a central database to ensure that the user is a valid user and that the desired transaction is authorized. A receiving compartment is specifically designed to receive a particular type of article, such as a video or audio cassette. Sensors in the receiving compartment ensure that the article is properly placed within the receiving compartment. Proper placement of the article within the receiving compartment ensures that the marker is properly re/desensitized, and also ensures that only one transaction on one article can be performed at a time.Type: GrantFiled: July 1, 1998Date of Patent: August 20, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: Anthony M. Belka, Thomas J. Brace
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Publication number: 20020106501Abstract: An article comprises a containment means comprising pressurized gas-filled microbubbles, the gas being controllably releasable on demand by fracturing the microbubbles.Type: ApplicationFiled: October 22, 2001Publication date: August 8, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventor: Mark Kevitt Debe
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Patent number: 6418253Abstract: A reflector for reflecting light from an elongate light source into the input end of a light guide having a diameter “D”. The light source is inserted through the narrow end of a collimating reflector which has a wide end with a diameter exceeding “D” through which light is emitted into the guide. The wide end of an output reflector circumferentially surrounds the collimating reflector's wide end. The output reflector's narrow end circumferentially surrounds the light guide's input end. The wide end of an input reflector circumferentially surrounds the collimating reflector's narrow end. The reflectors are cylindrically symmetrical about a common axis. Light passing from the light source to the collimating reflector is reflected, producing an output beam whose width varies as a function of distance along the axis. The light guide's input end is positioned along the axis to minimize the width of the output light beam.Type: GrantFiled: May 29, 2001Date of Patent: July 9, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventor: Lorne A. Whitehead
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Patent number: 6403206Abstract: Conformable pressure-sensitive adhesive tapes which comprise a layer of polymeric foam in the backing and may be adhered firmly to a substrate and thereafter removed therefrom after only being stretched at an angle no greater than about 35° from the surface of the substrate. Articles for mounting an object such as a picture to a surface such as a wall comprising a pressure-sensitive adhesive tape of the invention are also described.Type: GrantFiled: September 20, 1994Date of Patent: June 11, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: James L. Bries, Michael D. Hamerski
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Patent number: 6369179Abstract: 1H,lH-perfluorocyclohexylmethyl 2-fluoroacrylate, and homopolymers thereof.Type: GrantFiled: November 4, 1999Date of Patent: April 9, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: Nicholas A. Stacey, Alastair S. Dodds, Luke C. Williams
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Publication number: 20020037393Abstract: Embossed oriented thermoplastic films and a method of making same are described. The embossed oriented thermoplastic films have substantially the same mechanical properties as unembossed oriented thermoplastic films. The method includes providing an oriented thermoplastic film having first and second major surfaces, softening at least one of the first and second major surfaces to produce a softened surface, embossing the softened surface to produce an embossed oriented thermoplastic film, and cooling the embossed oriented thermoplastic film.Type: ApplicationFiled: April 27, 2001Publication date: March 28, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventors: Joan M. Strobel, Mark A. Strobel, Patrick J. Hager, Ronald S. Kapaun
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Patent number: 6362808Abstract: A color mapping method is used in transforming colors between color imaging systems. The method includes using forward transformation profiles that characterize the color imaging systems to generate respective sets of device-independent color values for the color imaging systems. Color conversions are calculated by reducing differences between the respective sets of device-independent color values. Based on these color conversions, a color map is constructed that describes a relationship between the color imaging systems.Type: GrantFiled: August 12, 1997Date of Patent: March 26, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: Christopher J. Edge, Timothy A. Fischer, William A. Rozzi
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Publication number: 20020026752Abstract: This invention pertains to an abrasive article comprising precisely shaped particles. The abrasive article may be a coated abrasive article, a bonded abrasive or a nonwoven abrasive article. The precisely shaped particles may further comprise abrasive grits, fillers, grinding aids and lubricants.Type: ApplicationFiled: February 26, 1999Publication date: March 7, 2002Applicant: MINNESOTA MINING AND MANUFACTURING COMPANYInventors: SCOTT R. CULLER, JOHN J. GAGLIARDI, THOMAS W. LARKEY, ERIC G. LARSON, LARRY M. MARTIN, JEFFREY W. NELSON
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Publication number: 20020023651Abstract: A filtering face mask that covers at least the nose and mouth of a wearer and that includes an exhalation valve. The exhalation valve opens in response to increased pressure when the wearer exhales to allow the exhaled air to be rapidly purged from the mask interior. An exhale filter element is placed in one of several locations in the exhale flow stream to remove contaminants from the exhaled air. The face mask is beneficial in that it provides comfort to the wearer by allowing warm, moist, high-CO2-content air to be rapidly evacuated from the mask interior through the valve and also protects the wearer from splash fluids and polluted air while at the same time protecting other persons or things from being exposed to contaminants in the exhale flow stream.Type: ApplicationFiled: July 24, 1998Publication date: February 28, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventors: DANIEL A. JAPUNTICH, NICOLE V. MCCULLOUGH, JANE K PETERSON, NICHOLAS R. BAUMANN, JOHN W. BRYANT, CHRISTOPHER P. HENDERSON, BRUCE E. PENNING
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Publication number: 20020017564Abstract: A library terminal permits a user to execute a loan transaction without assistance. The library terminal(i) provides a visible scan line from a bar code reader indicating the correct positioning of the bar code on a circulating item, (ii) leads a user through a loan transaction, (iii) provides an explicit feedback to a user when an article has an improper position on the article receiving area, (iv) both checks out and checks in circulating items, (v) stores fonts in bit maps of screen displays instead of in a separate font memory, (vi) integrates a security marker reader, a printer, and a controller in the same housing, (vii) processes financial transactions related to the borrowing of circulating items, and/or (viii) displays actions for helping the user to correct errors in use of the terminal.Type: ApplicationFiled: August 9, 2001Publication date: February 14, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventors: Roger D. Larson, James E. Fergen, John E. Nelson, Thomas J. Brace, Michael J. Kieffer, John D. Yorkovich, Gerald L. Karel, Gerald G. Marsolek, Joseph E. Schwietz, Mitchell B. Grunes, Kathleen M. McLeod, Richard M. Willems, Ronald C. Wurz
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Publication number: 20020014040Abstract: Surface conditioning articles comprising an organic matrix and water-based organic binders are reported. The water-based organic binders include a first binder and a second binder with abrasive particles dispersed and adhered within the second binder. The first binder comprises a mixture of a phenolic resin and a carboxylated butadiene-acrylonitrile copolymer latex, in the range of weight ratio of dry materials of said latex versus said phenolic resin of 90/10 to 60/40.Type: ApplicationFiled: July 16, 2001Publication date: February 7, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventor: Bernard Vincent
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Publication number: 20020011446Abstract: A process for modifying a medium is disclosed that includes treating a medium having a metal ion sorption capacity with a solution that includes: A) an agent capable of forming a complex with metal ions; and B) ions selected from the group consisting of sodium ions, potassium ions, magnesium ions, and combinations thereof, to create a medium having an increased capacity to sorb metal ions relative to the untreated medium.Type: ApplicationFiled: November 24, 1998Publication date: January 31, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventor: SUSAN H. LUNDQUIST
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Patent number: 6340794Abstract: A two-part system for electrical stress control includes a conformable stress control material positioned at the shield cut edge of a prepared power cable and a stress control tube over the conformable stress control material. A second region of conformable stress control material is positioned adjacent the cut end of the insulation. Relationships are revealed which relate the permittivity and dimensional parameters of the two components.Type: GrantFiled: December 16, 1996Date of Patent: January 22, 2002Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert A. Wandmacher, Lawrence C. Chor, John T. Larson
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Publication number: 20020007014Abstract: A pressure-sensitive adhesive comprising a blend of at least two components, wherein the first component is at least one pressure-sensitive adhesive and the second component is at least one thermoplastic material, wherein the components form a blended composition having more than one domain and, wherein one domain is substantially continuous (generally, the pressure-sensitive adhesive) and the other domain is substantially fibrinous to schistose (generally, the thermoplastic material). The second component can be (a) at least one thermoplastic elastomer, (b) at least one elastomer with a tackifying resin or (c) at least one elastomer.Type: ApplicationFiled: June 13, 2001Publication date: January 17, 2002Applicant: Minnesota Mining and Manufacturing CompanyInventors: Patrick D. Hyde, Dennis L. Krueger, Felix P. Lau, Eumi Pyun, Robert W. Shipman, Pamela S. Tucker, Roy Wong, David J. Yarusso
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Publication number: 20010051116Abstract: The present invention provides a mounting article having reduced or relieved surface tension for pollution control devices which utilize a monolith structure within a metal housing. The mounting article comprises a sheet material having major top and bottom surfaces, a thickness, a length and a width, said sheet material having at least one score-line in a surface of said sheet material. The present invention also provides a pollution control device comprising a housing, a pollution control element disposed within the housing, and a mounting article of the invention disposed between the pollution control element and the housing.Type: ApplicationFiled: November 17, 1997Publication date: December 13, 2001Applicant: Minnesota Mining and Manufacturing CompanyInventors: LOYD R HORNBACK III, JOSEPH C. PEISERT
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Publication number: 20010049408Abstract: The invention relates to compositions useful for bonding fluoropolymer to substantially non-fluorinated polymer. The compositions of the invention comprise a substantially non-fluorinated polymer or a mixture of said polymers, a di- or polyamine, preferably, an aliphatic diamine, and an onium catalyst, preferably, a phosphonium salt.Type: ApplicationFiled: July 13, 2001Publication date: December 6, 2001Applicant: Minnesota Mining and Manufacturing CompanyInventor: Naiyong Jing
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Publication number: 20010036529Abstract: A unitary polymer substrate having a plurality of microfibers projecting from a surface is provided. The presence of the microfibers greatly increases the surface area and can impart a cloth-like feel to the surface. The projecting microfibers may have a variety of forms, including frayed-end microfibers, tapered microfibers, microfibers having an expanded cross-sectional shape, and microfibers having a very high aspect ratio. A number of methods of producing unitary polymer structures with a plurality of projecting microfibers are also provided.Type: ApplicationFiled: July 29, 1997Publication date: November 1, 2001Applicant: MINNESOTA MINING AND MANUFACTURING COMPANYInventors: CLYDE D. CALHOUN, DAVID C. KOSKENMAKI, JAMES G. BERG, JENNIFER M. AAMODT