Patents Represented by Attorney, Agent or Law Firm John A. Burtis
  • Patent number: 7110654
    Abstract: An array of fiber optic splicing cassettes. The array has first and second side plates connected to one another by first and second axes. The fiber optic splicing cassettes each have a base and first and second curved slots in the base. Each of the first slots is moveably engaged on the first axis, and each of the second slots is moveably engaged on the second axis. In this way each of the cassettes may be moved between an open position and a closed position by simultaneously moving the first and second slots in one of the cassettes relative to the first and second axes.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: September 19, 2006
    Assignee: 3M Innovative Properties Company
    Inventor: Michel Dillat
  • Patent number: 7101216
    Abstract: An electrically coupled insulation displacement system comprises a first contact having a first insulation displacement slot therein having an open end and a closed end. The first insulation displacement slot has a first portion having a width adjacent the open end and a second portion having a width intermediate the first portion and the closed end, the first portion has a larger width than the second portion. The insulation displacement system further comprises a second contact, which includes a second insulation displacement slot therein having an open end and a closed end. The second insulation displacement slot has a first portion having a width adjacent the open end and a second portion having a width intermediate the first portion and the closed end, the first portion has a smaller width than the second portion.
    Type: Grant
    Filed: September 15, 2004
    Date of Patent: September 5, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Xavier Fasce, Guy Metral, Jerome A. Pratt
  • Patent number: 7015394
    Abstract: A cable bushing intended to close off, in a sealed way, a space around a plurality of cables, comprises a first compression part (4) intended to be positioned towards the outside of a sleeve (47), a second compression part (6), offset in a longitudinal direction from the first compression part (4) and intended to be positioned toward the inside of the sleeve (47), a plurality of openings (8, 9, 11, 12) formed in the first compression part (4) and a plurality of corresponding openings (13, 14, 16, 17) formed in the second compression part (6), each of the said openings (8, 9, 11, 12) in the first compression part (4) being intended, together with the corresponding openings (13, 14, 16, 17) in the second compression part (6) for a respective cable to pass through, sealing means (7) located between the said first compression part (4) and the said second compression part (6), and compression means for moving the first compression part (4) and second compression part (6) towards one another in the longitudinal dir
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: March 21, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Christophe Desard, Herve Brunet
  • Patent number: 6926772
    Abstract: Continuous void-free uniform coatings are formed on filamentous articles by applying a voided or otherwise substantially uneven coating to at least some of the exposed portion of a filamentous article or to a rotating substrate. The filamentous article or substrate is passed through an improvement station containing a plurality of coating-wetted rolls that contact and re-contact the wet coating at different positions along the length of the filamentous article or rotating substrate, wherein the periods of the rolls improve the uniformity of the coating. For coatings applied to a rotating substrate, the uniform wet coating is transferred to the filamentous article. The final coating can be very thin, very uniform and completely or substantially void-free. The coating improvement can be quickly and easily obtained using low cost equipment.
    Type: Grant
    Filed: February 27, 2002
    Date of Patent: August 9, 2005
    Assignee: 3M Innovative Properties Company
    Inventor: William K. Leonard
  • Patent number: 6802822
    Abstract: A dispensing tip for e.g. a syringe dispensing an adhesive tissue sealant, having two rigid sections connected together by a flexible section. Preferably, although bendable, the flexible section has enough resilience that in the absence of external force the two rigid sections are held at a predictable angle to one another. In this way manual dispensing into hard to reach places during surgery is facilitated. This flexibility also facilitates use of the dispensing tip with a cannula.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 12, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Larry H. Dodge
  • Patent number: 6731965
    Abstract: A non-polarizable, silver/silver chloride biomedical electrode that is protected against corrosion during its shelf life by an organic corrosion retarding agent, preferably selected from the group consisting of mercaptans and azoles.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: May 4, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Vinod P. Menon, Hatim M. Carim
  • Patent number: 6725966
    Abstract: A chestpiece for a stethoscope, the chestpiece having a novel mix of desirable properties through being fabricated from the group of materials known as “high gravity compounds.” These compounds are prepared by loading various plastic resins with high density metal powders. In spite of the metallic content, appropriate compounds can be injection molded, providing economic and aesthetic advantages.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: April 27, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Thomas E. Drummond
  • Patent number: 6709716
    Abstract: A method for making a bicontinuous, conductive, pressure sensitive adhesive (PSA), such that the starting microemulsion has a convenient viscosity for coating, and such that only a single polmerization step is needed. This has been accomplished by the discovery of a class of thickening agents having a carboxylic acid functionality that are compatible with the microemulsion and yet do not damage the properties of the final adhesive.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: March 23, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Rosa Uy, Chung I Young
  • Patent number: 6708050
    Abstract: The present invention provides a power source for biomedical electrodes and other electronic devices comprising a galvanic cell in a state of partial construction. The galvanic cell generally comprises an anode conductor, a cathode conductor and electrolyte-containing substance. The anode is in electrical contact with a first quantity of electrically conductive medium and the cathode is in electrical contact with a second quantity of electrically conductive medium. The electrolyte-containing substance is separated from at least one of the anode or cathode until the cell is activated by allowing the electrolyte-containing substance to contact the anode and the cathode. Use of the galvanic cell in a drug delivery device is also disclosed.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: March 16, 2004
    Assignee: 3M Innovative Properties Company
    Inventor: Hatim M. Carim
  • Patent number: 6667095
    Abstract: Multilayer polymeric films and other optical bodies are provided. The films, which have at least three layers of different composition in the optical repeating unit, reflect light in a first portion of the spectrum while transmitting light in a second portion of the spectrum, exhibit improved reflectivities at oblique angles, and can be designed to suppress one or more higher order harmonics of the main reflection band.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: December 23, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: John A. Wheatley, Timothy J. Nevitt, William W. Merrill, Michael F. Weber
  • Patent number: 6648852
    Abstract: A dispenser in which a dry powder (one component of a two-part adhesive tissue sealant and/or adhesive) is stored in a container (e.g., a carpule) having a septum at one end, an open end opposite the septum, and a movable plug. The powder is retained at the septum end of the container by the movable plug, which is displaced and pushed back as the solvent used for reconstituting the powder is introduced (e.g., through the septum). The second part of the tissue sealant is contained within a second container, also with a movable plug. After the first part is reconstituted, a manifold is fitted which pierces both septums and allows the contents to be dispensed. A dual syringe body supports the containers, and has pistons that enter the open ends to advance the movable plugs. Other embodiments of tissue adhesive and/or sealant dispensers and kits as well as methods of preparing tissue sealants are also described.
    Type: Grant
    Filed: March 27, 2003
    Date of Patent: November 18, 2003
    Assignee: 3M Innovative Peroperties Company
    Inventors: David F. Wirt, Larry H. Dodge, Jeffrey D. Smith
  • Patent number: 6641883
    Abstract: Optical devices such as light pipes which incorporate multilayer optical films in which the refractive indices of two adjacent layers in the thickness direction are substantially matched or are small relative to the difference in refractive indices of said two adjacent layers in an given in-plane direction which is at least 0.05. The multilayer optical film exhibits low absorptivity and can reflect light approaching at shallow angles as well as normal to the film.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: November 4, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Michael F. Weber, David L. Wortman, Andrew J. Ouderkirk, Sanford Cobb, Jr.
  • Patent number: 6579814
    Abstract: An alkali dispersible article comprises a sheath-core microfiber. The sheath layer comprises a hydrolytically degradable polymer, and the core layer comprises another polymer that is different than the sheath polymer. The core polymer may be a hydrolytically degradable polymer or more preferably a water soluble polymer.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: June 17, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Lindquist, Gregg A. Patnode, Denise R. Rutherford, Dietmar Schlei
  • Patent number: 6576263
    Abstract: A preformed object for delivering an active agent for a subject, the preformed object including crosslinked protein, and methods of making and using.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: June 10, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Myhanh T. Truong, Kaveh Pournoor, Hye-ok Choi, David J. Velasquez, Richard H. Ferber, Stephanie F. Bernatchez
  • Patent number: 6569113
    Abstract: A dispenser in which a dry powder (one component of a two-part adhesive tissue sealant and/or adhesive) is stored in a container (e.g., a carpule) having a septum at one end, an open end opposite the septum, and a movable plug. The powder is retained at the septum end of the container by the movable plug, which is displaced and pushed back as the solvent used for reconstituting the powder is introduced (e.g., through the septum). The second part of the tissue sealant is contained within a second container, also with a movable plug. After the first part is reconstituted, a manifold is fitted which pierces both septums and allows the contents to be dispensed. A dual syringe body supports the containers, and has pistons that enter the open ends to advance the movable plugs. Other embodiments of tissue adhesive and/or sealant dispensers and kits as well as methods of preparing tissue sealants are also described.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: May 27, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: David F. Wirt, Larry H. Dodge, Jeffrey D. Smith
  • Patent number: 6566090
    Abstract: A sterilization indicator is useful for testing the effectiveness of sterilization procedures that disinfect objects by contacting them with a liquid sterilization procedure. The indicator includes an outer container having an open end and a cover material associated with the open end that is impermeable to liquids and bacteria. An enzyme-gel matrix is coated on a surface within the outer container that comprises a biologically inert polymeric gel and a source of an active enzyme dispersed within the gel. The enzyme has an activity that is correlated with the survival of at least one test microorganism that is commonly used to monitor the effectiveness of a sterilization procedure. A breakable ampoule within the outer container contains a substrate that is capable of reacting with any active enzyme remaining after the indicator has been subjected to a sterilization procedure to provide a detectable indication that the sterilization procedure was ineffective.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: May 20, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Kelvin J. Witcher, Lewis P. Woodson
  • Patent number: 6562360
    Abstract: Disclosed is a composition including a lower alcohol and water in a weight ratio of about 35:65 to 100:0, between at least 0.5% and 8.0% by weight thickener system comprised of at least two emulsifiers, each emulsifier present in at least 0.05% by weight wherein the composition free of auxiliary thickeners has a viscosity of at least 4,000 centipoise at 23 degrees C. and wherein each emulsifier is comprised of at least one hydrophobic group and at least one hydrophilic group. The composition is useful as a presurgical scrub replacement, a lotion or other hand preparation.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: May 13, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Matthew T. Scholz, Robert A. Asmus, Jill R. Charpentier
  • Patent number: 6534069
    Abstract: A hydroalcoholic lotion is disclosed which comprises (a) a lower alcohol and water in a weight ratio of about 35:65 to 100:0, and (b) between at least 0.5% and 8% by weight thickener system comprised of at least one emulsifier present in at least 0.05% by weight wherein the composition in a polymer free state has a viscosity of at least 4,000 centipoise at 23 degrees C. and wherein the emulsifier is comprised of at least one hydrophobic group and at least one hydrophilic group. The hydroalcoholic composition is useful as a hand preparation such as a lotion or as a presurgical scrub replacement.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: March 18, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Robert A. Asmus, Matthew T. Scholz, Jill R. Charpentier
  • Patent number: D471985
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: March 18, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Wayne K. Dunshee, Mark A. Schonewill
  • Patent number: D487928
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: March 30, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Thomas E. Drummond, Douglas W. Voegeli