Patents Examined by Krisanne Jastrzab
  • Patent number: 6984359
    Abstract: A sterilizer including a sterilization chamber for receiving articles to be sterilized and a door supported on a horizontal pivot at an access opening of the sterilizer chamber. The door includes a seal plate and a resilient seal member supported on the seal plate wherein the seal member includes an annular lip extending transversely to the plane of the seal plate. The lip extends into the sterilizer chamber wherein pressure within the chamber exerts a force biasing an opposing surface of the lip into engagement with an inner surface of the chamber. The sterilizer door is movable between a fully closed and a fully open position and includes a mechanism for holding the door in a partially open position. In the partially open position, the lip extends into contact with a surface of the sterilizer chamber to thereby form a bridge between the door and chamber and prevent condensation from dripping down away from the chamber and door.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: January 10, 2006
    Assignee: Midmark Corporation
    Inventors: Edward J. Florkey, Ronald A. Gatchell, Richard L. Jones, Michael J. Coyle, Philip M. Stewart
  • Patent number: 6984361
    Abstract: A gaseous blend of Ox and a method for significantly reducing the biological load, including anthrax, on mail and shipping parcels is disclosed. The gaseous blend of Ox consists at least in part of O3. The method involves applying a continuous stream of oxygen-containing, i.e., Ox, gas to the mail or shipping parcel at a predetermined temperature, pressure and relative humidity. The continuous stream of Ox gas is prepared in an Ox generation cell, which contains a means for generating the Ox gas at a pressure less than 20 lbs/in2 using, for example, one or more of the following: corona discharge, high frequency electrical discharge, ultraviolet light, x-ray, radioactive isotope and electric beam.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: January 10, 2006
    Assignee: Cosmed Group, Inc.
    Inventors: Gary B. Carman, Stephen K. Wirtz
  • Patent number: 6979428
    Abstract: A system for sterilizing or microbially deactivating instruments and devices. The system includes a circulation system for circulating a microbial deactivation fluid through a chamber for containing the instruments and devices. The chamber forms a portion of the circulation system. The system further includes a fluid over-flow/make-up air assembly. The fluid over-flow/make-up air assembly includes a manifold having an inner cavity that is in fluid communication with the circulation system, an overflow port in the manifold, and an overflow valve assembly disposed in the manifold allowing fluid flow from the cavity to the overflow port when a pressure in the cavity exceeds a pressure in the overflow port by a predetermined amount. A filter assembly is attached to the manifold. The filter assembly has a filter valve assembly in communication with the cavity.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: December 27, 2005
    Assignee: Steris Inc.
    Inventors: Christopher A. Jethrow, Jude A. Kral, Donald A. Sargent
  • Patent number: 6969487
    Abstract: A biochemical agent is denatured by producing an activated cleaning fluid mist containing activated hydroxyl species wherein at least a portion of the activated cleaning fluid mist is in an activated state at substantially one atmospheric ambient pressure, and contacting the activated cleaning fluid mist to a biochemical agent.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: November 29, 2005
    Assignee: Intecon Systems, Inc.
    Inventors: Ralph M. Sias, Heath E. Sias, J. Michael Pierce, Louis Montulli
  • Patent number: 6955786
    Abstract: A gaseous blend of CO2 and Ox and a method for applying a continuous stream of a gaseous blend of CO2 and Ox to a material are disclosed. The gaseous blend and the method significantly reduce the biological load on consumer products, such as food products, botanicals and cosmetic ingredients; in building structures; on transportation containers; and in soil.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: October 18, 2005
    Assignee: Cosmed Group, Inc.
    Inventors: Gary B. Carman, Steven K. Wirtz
  • Patent number: 6951630
    Abstract: The present invention involves the use of photosensitizers to provide antibacterial surfaces on consumer and industrial items. This approach avoids the used of chemicals and solutions that may be toxic. The inventions also avoids the use of chemical compositions that might form degradation products which may be unacceptable to healthy persons or irritating to persons who may have allergies or are otherwise sensitized. According to the invention, photosensitizers with specific properties and specific design features are selected to make practical use of photosensitizers in the consumer and industrial market place. It is important to select a photosensitizer with an activation spectrum that is matched to the environmental conditions under which the surface to be protected is required to exhibit its antimicrobial properties. This means that the illumination energy and intensity levels expected need to yield enough singlet oxygen to destroy the targeted microbes.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: October 4, 2005
    Assignee: CeramOptec Industries, Inc.
    Inventor: Wolfgang Neuberger
  • Patent number: 6949218
    Abstract: The use of low molecular weight amino alcohols in ophthalmic compositions is described. These compounds have been found to enhance the efficacy of anti-microbial preservatives.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: September 27, 2005
    Assignee: Alcon Manufacturing, Ltd.
    Inventor: Bahram Asgharian
  • Patent number: 6942834
    Abstract: A method and packaging system receive products and/or objects in a packaging storage volume, the packaging storage volume contains a first agent including oxygen that is energizably convertible by an ultraviolet radiation energy source to a sanitizing agent including ozone in the packaging storage volume, the sanitizing agent including ozone being transferable to the products and/or objects to provide at least one of a sanitizing, disinfecting, and sterilizing, application to the products and/or objects. The system also includes at least one of an incline, a ridged surface, ridged strip, a baffle structure, and other structure for providing rotational motion to the products and/or objects being stored in the packaging storage volume for exposing surfaces of the products and/or objects to the sanitizing agent comprising ozone and to the ultraviolet radiation energy. Additionally, a packaging storage control system is provided with timed intervals for exposure to sanitizing applications.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: September 13, 2005
    Inventor: Jose Gutman
  • Patent number: 6939510
    Abstract: The present invention provides a sustained-releasing anti-protista preparation, including using a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature as a sustained-releasing substrate material, a method for a preparation of the sustained-releasing anti-protista preparation, including kneading a water-insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature with an anti-protista substrate, and a sustained-releasing anti-protista preparation for a waterway, including using a water insoluble or difficulty water soluble and water-wettable polymer compound which is solid at room temperature as a sustained-releasing substrate material.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 6, 2005
    Assignee: Wako Pure Chemical Industries, Ltd.
    Inventors: Hiroyuki Kato, Tadayoshi Yazaki, Tokihiko Maruyama
  • Patent number: 6939511
    Abstract: A method and composition for disinfecting a contact lens is disclosed. The method includes treating a lens with an aqueous solution having reduced toxicity to the eye which contains an effective amount of a monoperphthalic acid compound in a concentration of less than about 0.5% by weight of the solution. The lens disinfecting solution is capable of disinfecting contact lenses without irritating the eye due to reduced toxicity of the composition.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: September 6, 2005
    Assignee: Novartis AG
    Inventor: Fu-Pao Tsao
  • Patent number: 6926862
    Abstract: A container liner, shelf liner or drawer liner that will absorb liquids spilled or leaked into a container or onto a shelf or drawer. The liner is a layered product having a layer which is impervious to liquids and an absorbent layer. The absorbent layer further contains a material which is capable of controlling odors, such as those odors found in refrigerators and waste receptacles. The liner of the present invention provides the benefit of absorbing spills and controlling odors in containers such as refrigerators and waste receptacles.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: August 9, 2005
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Monica Carlise Fontenot, Terry Pearce Ford, John Wesley Fowler, Jeanette Ann Allen, Ryan Clinton Frank, Gina Kay Rolsten, Richard John Schmidt, Bruce Scott Williamson
  • Patent number: 6923937
    Abstract: A soil biocide formulation for aqueous delivery comprising from about 50 to 99% by weight of the formulation of a fumigant preferably selected from the group consisting of methyl bromide, chloropicrin, 1-3 dichloropropene (Telone), propargyl bromide, dimethyl disulphide methylisothiocyanate and mixtures of them; and from about 50 to 1% emulsifier with the emulsifier being comprised of non-ionic and anionic surfactants.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: August 2, 2005
    Assignee: Trical, Inc.
    Inventors: Dean C. Storkan, Mark A. McCaslin, Matthew J. Gillis
  • Patent number: 6919057
    Abstract: An automated endoscope reprocessor (10) includes a removable rack (12) for receiving a container (16, 16?). The container has a clamshell housing (20) having two mating portions (24, 26). The portions together define an internal pressurizable chamber (56) for receiving an endoscope head (22). The endoscope's connector cord (82) is carried through an outlet (80) to the chamber. The outlet is defined by channels (88, 90), one in each of the two housing portions (24, 26). A gasket assembly in the outlet provides a restricted fluid passage which allows a small portion of fluid to flow through the outlet when the connector cord is positioned therein. The gasket assembly (120) includes a number of resiliently flexible fins (126, 128, 130) positioned in each channel, each fin having a U-shaped slot (144, 146, 148). Pairs of fins overlap such that the slots together define openings (150) of diminishing size.
    Type: Grant
    Filed: April 4, 2002
    Date of Patent: July 19, 2005
    Assignee: Steris Inc.
    Inventors: Éric Halstead, Eugéne Cantin, Michel Trachy, Christian Angers, Serge Coulombe, Maxime Nicole
  • Patent number: 6916456
    Abstract: A pressure regulating device for regulating the pressure exerted on a medical instrument in a reprocessor for microbially deactivating the medical instruments.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: July 12, 2005
    Assignee: STERIS Inc.
    Inventors: Louis Martineau, Eric Halstead
  • Patent number: 6908592
    Abstract: A soil biocide formulation for aqueous delivery is disclosed. The formulation includes a biocide selected from methyl bromide, chloropicrin, 1-3 dichloropropene (Telone) and methgylisothiocyanate. The formulation also includes an emulsifier containing non-ionic and anionic surfactants.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: June 21, 2005
    Assignee: Trical, Inc.
    Inventors: Dean C. Storkan, Mark A. McCaslin, Matthew J. Gillis
  • Patent number: 6905661
    Abstract: A mailpiece sorting apparatus is described which includes a feeder, an OCR scanner, a mailpiece transporter, a sanitizer and compartments or bins for receiving sorted mailpieces, an optical character recognition system (OCR) for reading addressee information, an addressee database, and a personal computer (PC) or microprocessor based control system. In one configuration, mailpieces are feed, singulated and sanitized. In another configuration, mailpieces are fed, singulated, sanitized and sorted. In another configuration, the system is contained in a sanitization area and clean room. The system provides for sanitization of mailpieces so as to help deter delays in incoming mail delivery caused by the presence of life harming material and sanitize the mail so as to protect the intended recipients from harm.
    Type: Grant
    Filed: December 31, 2001
    Date of Patent: June 14, 2005
    Assignee: Pitney Bowes Inc.
    Inventors: William E. Ryan, Jr., Robert K. Gottlieb, Joseph D. Mallozzi
  • Patent number: 6890481
    Abstract: The present invention provides a porous paper product impregnated with at least one chemical species. The porous paper product can be in the form of sheets, or compressed pellets. The porous paper can be prepared from a variety of sources, including wood pulp, kenaf, flax, or hemp. The chemical species impregnating the paper react and/or diffuse out of the paper to accomplish a variety of desired results. For example, diffusion of a volatile biocidal chemical out of pores in the paper create a no-growth zone on and immediately surrounding the impregnated paper. In this manner the impregnated paper can provide a sterile environment for activities such as food packaging/storage, the treatment of illness/injury, or waste disposal.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: May 10, 2005
    Assignee: Cathm, LLC
    Inventors: James A. Aamodt, John W. Colvin
  • Patent number: 6884392
    Abstract: A system for reprocessing flexible endoscopes having lumen therein. The reprocessing system deploys steam to disinfect and/or sterilize the endoscopes, and designs, components, and methods for reducing or balancing the reprocessing cycle time and the effects of thermal expansion and contraction on the endoscopes.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: April 26, 2005
    Assignee: Minntech Corporation
    Inventors: Roy K. Malkin, Roland C. Kippenhan, Jr., Michael P. Petersen, Thomas L. Fenton
  • Patent number: 6875399
    Abstract: A sterilization system (14) includes a sensor (10) for detection of a component, such as hydrogen peroxide vapor, in a multi-component vapor, such as a mixture of vapor hydrogen peroxide and water supplied to a chamber (12) of the system. The sensor preferably uses a wavelength range in which hydrogen peroxide strongly absorbs but other components of the vapor, such as water, do not. A suitable wavelength for detection of hydrogen peroxide is from about 7500 to about 8400 nm, since there is little absorption by water in this range. This avoids the need to use complex subtraction procedures normally used to remove the contribution of water from detected absorbance measurements. A control system (16, 30) controls operating conditions of the sterilization system, such as a heater (82), pressure release valves (74), vaporization rate of hydrogen peroxide by a vaporizer (22), and the like to maintain optimum sterilization conditions within the chamber.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: April 5, 2005
    Assignee: Steris Inc.
    Inventor: Iain F. McVey
  • Patent number: 6875400
    Abstract: A method includes providing an article including an oxygen scavenger; forming the article into a container; placing an oxygen sensitive product into the container; and exposing the container to actinic radiation at a dosage effective to sterilize the container, and trigger the oxygen scavenger in the article. Alternative methods are also disclosed. A package includes a container, the container including an activated oxygen scavenger; wherein the container is sterilized; and wherein an oxygen sensitive product is disposed in the container.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: April 5, 2005
    Assignee: Cryovac, Inc.
    Inventors: Drew V. Speer, Ronald L. Cotterman