Preventing Opening Of Closure Of Pressurized Apparatus At Unsafe Pressure Patents (Class 422/118)
  • Publication number: 20130247628
    Abstract: Disclosed are an apparatus and method for treating organic waste to reduce treatment costs and period, enable environmentally friendly treatment without causing bad smell or waste water, and thereby prepare an organic combust with a high quality and a liquid fertilizer with a high concentration. The apparatus includes a sealable reaction vessel including an inlet through which an organic waste and a reactive additive are injected, an outlet through which a treated substance is discharged as reactive gas, a stirrer to stir contents of the reaction vessel, and a liquid fertilizer producer to condense the reactive gas discharged from the gas outlet with a cooling solution and thereby produce a liquid fertilizer, while gradually increasing the concentration of fertilizer components of the cooling solution.
    Type: Application
    Filed: February 22, 2011
    Publication date: September 26, 2013
    Inventor: Daniel RIVERO SERRANO
  • Publication number: 20130230426
    Abstract: The cold plasma sterilization device for the sterilization of at least one object is placed in a container enclosing at least a gas or a gas mixture suitable for generating a cold plasma. The device includes a closed vessel in which a support for receiving the container is arranged. There is a device for subjecting the vessel to a secondary vacuum of the order of 10?3 to 10?7 millibar. There is an electron cyclotron resonance generator for generating, in the vessel, a flow of microwaves coupled to a magnetic field at least in a phase of initialization of the cold plasma. There is also a device for polarization of the support of the container.
    Type: Application
    Filed: September 23, 2011
    Publication date: September 5, 2013
    Applicant: Universite de Reims Champagne Ardenne
    Inventors: Jean-Marc Popot, Marie-Paule Gelle
  • Patent number: 7829040
    Abstract: A vessel assembly is disclosed for high pressure high temperature chemistry. The vessel assembly includes a cylindrical vessel and a cylindrical vessel seal cover. The vessel and the seal cover have respective surfaces that, when engaged, define a circumferential interior passage between the vessel and the seal cover. A pressure release opening in the seal cover is in fluid communication with the circumferential passage. A retaining ring surrounds the vessel and the seal cover at the position where the vessel and the seal cover meet to maintain an outer circumferential engagement between the seal cover and the vessel when pressure forces gases in the vessel to flow into the circumferential passage and then outwardly from the pressure release opening.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: November 9, 2010
    Assignee: CEM Corporation
    Inventors: Wyatt Hargett, Jr., David Barclay
  • Publication number: 20100266445
    Abstract: The present invention relates to a sterilization unit consisting of a cubical enclosure which uses a sequenced supply of ozone and ultraviolet radiation in the C band (UVC) wave length to sterilize. In use, an article to be sterilized is positioned atop a glass plate mounted between two sources of UVC radiation sources and ozone is first supplied to the enclosure for a period of 15 seconds to 60 minutes followed by a supply of UVC radiation for a period of 15 seconds to 60 minutes.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 21, 2010
    Inventor: Kenneth L. Campagna
  • Publication number: 20100261895
    Abstract: An improved apparatus and process for treating biomass bearing material including municipal solid waste (MSW). The apparatus includes a reaction vessel configured for rotation and steam injection, with helically arranged auger vanes attached to the internal walls of the vessel, a self aligning door. Embodiments includes various of a heated jacket, modified raised projections on the top edge of the auger vanes, a modified door, modified door sealing assembly, and a process of quick charging the interior of the vessel with steam.
    Type: Application
    Filed: June 29, 2010
    Publication date: October 14, 2010
    Inventors: Anthony P. Noll, Scott F. Hicks
  • Patent number: 7491368
    Abstract: A method for deliberately plugging the inlet and outlet ends of a reactor tube in a recoverable manner, which method employs at least one vented plug whereby fluid communication within the tube can be established or terminated at will, and the tube is unplugged only after the fluid content of the tube has been drained through the vented plug.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: February 17, 2009
    Assignee: Equistar Chemicals, LP
    Inventors: Keith L. Vogel, Michael A. Middleton
  • Patent number: 7192561
    Abstract: A high-pressure reactor which has a hydraulically controlled pressure-relief valve. The mechanical design of the corresponding hydraulic system in combination with the control technology used facilitates particularly fast opening of the pressure-relief valve in the case of pressure or temperature jumps in the high-pressure reactor.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: March 20, 2007
    Assignee: Basell Polyolefine GmbH
    Inventors: Georg Groos, Klaus Hammer
  • Patent number: 7147828
    Abstract: A reactor comprising a reacting vessel 31 that contains a fluid including high temperature and high pressure water under target reaction temperature and reaction pressure condition and performs a reaction treatment to a reactant by the fluid, a first pipe 25 connected to the reacting vessel 31 to supply the reactant to the reacting vessel 31, and a first partition means 50 for partitioning between first pipe 25 and the reacting vessel 31 so as to prevent a leakage of any one of the fluid, the reactant, and a reaction product from the reacting vessel 31 side to the first pipe 25 side. The first partition means 50 is comprised of for example a valve 51, a shaft 52, a weight 53, a supporting member 54, and a pipe 55, and normally, due to the weight 53, the valve 51 closes an opening of a bottom end of the pipe 55. That is, it isolates the pipe 55 and the inside of the reacting vessel 31.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: December 12, 2006
    Assignee: Sony Corporation
    Inventors: Noritaka Sato, Tsutomu Noguchi
  • Patent number: 7105061
    Abstract: Methods and an apparatus for providing an intrinsically safe chamber door for a processing chamber capable of operating at high pressures are provided. One exemplary apparatus includes a processing chamber for a substrate where the chamber is configured to operate at a positive pressure. The processing chamber includes a port loading slot for providing access for the substrate into and out of the chamber. A chamber door positioned inside the chamber is included. The chamber door is configured to seal against an internal surface of the chamber thereby blocking access through the port loading slot. An internal pressure of the chamber assists in sealing the chamber door against the internal surface of the chamber. Also included is a door actuating mechanism configured to move the door along a door path where the door path is positioned at an angle to a path to be traversed by the substrate.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: September 12, 2006
    Assignee: Novellus Systems, Inc.
    Inventors: Krishnan Shrinivasan, Arkadiy Shimanovich, Vladimir Starov
  • Patent number: 6863871
    Abstract: A dynamic sealing structure for pressure vessels used in microwave assisted chemistry is disclosed. The structure includes a cylindrical vessel liner and a removable liner cap, each formed of a microwave transparent material. The liner has a circular mouth with a lip formed of respective first and second beveled edges, with the first beveled edge forming an interior edge of the circular mouth and the second beveled edge forming an exterior edge of the circular mouth. The cap includes respective interior and exterior faces, with a sleeve depending from the interior face and having a circumference that engages the interior surface of the vessel liner for being urged under pressure against the interior surface of the vessel liner. The interior face of the cap comprising a circular channel outward of the sleeve and having a circumference that engages the lip of the vessel liner, and with the channel comprising two beveled edges that respectively engage both beveled edges of the lip of the liner.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: March 8, 2005
    Assignee: CEM Corporation
    Inventor: Wyatt Price Hargett, Jr.
  • Publication number: 20040042943
    Abstract: This invention relates to a sterilisation apparatus, comprising a sterilisation unit and a processing unit, wherein said processing unit is arranged to control a sterilisation process within said sterilisation unit. In accordance with the invention, said units are mechanically separated from each other, the units being interconnected by means of at least one of an information or medium exchange device.
    Type: Application
    Filed: September 5, 2002
    Publication date: March 4, 2004
    Inventor: Johan Wanselin
  • Publication number: 20030202901
    Abstract: The present invention involves a sterilization system for running high amperage current through a dental or medical handpiece to be sterilized thereby heating the handpiece to a point of sterilization. The system includes a controller, a high amperage current source, and a handpiece receptacle. The handpiece receptacle includes clamps to hold the handpiece in place and a temperature sensor to measure the temperature of the handpiece. The controller controls the amount of current supplied by the high amperage current source to the handpiece according to the temperature of the handpiece. After the handpiece has been at or above the sterilization temperature for the required period of time, the controller stops the flow of current to the handpiece.
    Type: Application
    Filed: April 29, 2002
    Publication date: October 30, 2003
    Inventor: Eric J. Stetzel
  • Patent number: 6391258
    Abstract: A pressure vessel, such as a bench top sterilizer, including a pressurizable chamber housing having an interior for receiving items to be sterilized. The chamber housing includes an access opening and the sterilizer or pressure vessel includes a door with hinge structure facilitating door movement between an opened condition, a latch condition and a latched and sealed condition. A seal is connected with at least one of the chamber housing and the door and is disposed in sealing engagement around the access opening when the door is in the latched and sealed condition. After latch structure on the door is initially actuated by a user, a motorized drive mechanism with a rotatable output connects with the latch structure such that rotation of the output moves the door from the initially latched condition to the latched and sealed condition.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: May 21, 2002
    Assignee: Barnstead/Thermolyne Corporation
    Inventors: Steven C. Peake, Jason A. Harms
  • Patent number: 6287526
    Abstract: A dynamic sealing structure for pressure vessels used in microwave assisted chemistry is disclosed. The structure includes a cylindrical vessel liner and a removable liner cap, each formed of a microwave transparent material. The liner has a circular mouth with a lip formed of respective first and second beveled edges, with the first beveled edge forming an interior edge of the circular mouth and the second beveled edge forming an exterior edge of the circular mouth. The cap includes respective interior and exterior faces, with a sleeve depending from the interior face and having a circumference that engages the interior surface of the vessel liner for being urged under pressure against the interior surface of the vessel liner. The interior face of the cap comprising a circular channel outward of the sleeve and having a circumference that engages the lip of the vessel liner, and with the channel comprising two beveled edges that respectively engage both beveled edges of the lip of the liner.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: September 11, 2001
    Assignee: CEM Corporation
    Inventor: Wyatt Price Hargett, Jr.
  • Patent number: 5861126
    Abstract: A safety device for gas or steam pressure vessel, including at least one downstream valve connected to the pressure vessel via a tubing with a burst disc dividing the tube into an upstream section A and a downstream section B. The downstream section B includes a protective assembly for minimizing the maximum pressure of a shock wave generated when the burst disc is broken and strikes the valve.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: January 19, 1999
    Assignee: Industrie Chimique Mulhouse Dornach
    Inventor: Daniel Bajolet
  • Patent number: 5582799
    Abstract: Apparatus and methods of closing and sealing chemical reactor vessels, which are relatively less susceptible to contaminant build-up and more easily maintained in such a state.The chemical reactor vessel comprises a vessel body and a separable head attached thereto wherein the means for attaching and sealing said head to said body comprises; a seal means, a flange means, a shield means and an attachment means.The seal means functions, in compression, to prevent leakage of fluids into and from said chemical reactor vessel. The flange means functions to impose compressive loads to the seal means to cause the seal means to prevent leakage of fluids into and from the chemical reactor vessel.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: December 10, 1996
    Assignee: Pfaudler, Inc.
    Inventors: Franklyn J. Amorese, Morris E. Gruver, III
  • Patent number: 5432265
    Abstract: The continuous removal of solid products from a high-pressure system is achieved by operating a high-pressure pump in reverse to gradually reduce pressure at the exit line to atmospheric pressure. This process allows solid products to exit the system while at the same time maintaining high pressure in the reactor.
    Type: Grant
    Filed: July 27, 1993
    Date of Patent: July 11, 1995
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Peggy M. Tomasula
  • Patent number: 5424047
    Abstract: A sterilization container for an arrangement for sterilizing medical instruments, implants and the like with steam is disclosed. The arrangement has a steam generator fed by a dispensing pump and has a control device for the sterilizing process. The sterilization container is arranged in such a way that it can be pushed into a holding device in a working connection with the steam generator. The walls of the sterilization container, which is closed on all sides during the sterilizing process so as to be tight against pressure, are formed at least in part by portions of the holding device.
    Type: Grant
    Filed: February 23, 1994
    Date of Patent: June 13, 1995
    Assignee: Sci-Can, Div. of Lux and Zwingenberger Ltd.
    Inventors: Arthur Zwingenberger, Martin Saupe
  • Patent number: 4999165
    Abstract: The disclosed pressurized vessel has a door seal which is pressurized by a steam supply. A diaphragm actuated solenoid valve is connected between the steam supply and the door seal. The diaphragm solenoid valve precludes the door seal from depressurizing unless the pressure within the vessel is within a preselected pressure tolerance. Also, a check valve is provided to preclude the door seal from completely depressurizing if the pressure at the steam supply is interrupted.
    Type: Grant
    Filed: October 27, 1989
    Date of Patent: March 12, 1991
    Assignee: MDT Corporation
    Inventors: Daniel Calabra, Charles O. Hancock, Brian Avant
  • Patent number: 4813784
    Abstract: A reverse flow post-mixer attachment for direct-fixed asphaltic concrete mixers includes a modified discharge box for the downstream end of the drum and an enclosure for the downstream portion of the drum forming a passage along the exterior of the drum. If the smoke point of the liquid asphalt to be added to the material in the drum meets an established standard it is injected into the material upstream of the downstream end of the drum and discharged from the latter end in the normal manner. If the smoke point of the asphalt does not meet the standard, the material exiting the drum is diverted into the passage along the exterior of the drum and the asphalt added there out of the burner stream in the drum. The material and asphalt are then mixed and moved through the passage and finally discharged.
    Type: Grant
    Filed: August 25, 1987
    Date of Patent: March 21, 1989
    Inventor: Joseph E. Musil
  • Patent number: 4426358
    Abstract: A fail-safe device for a pressure vessel includes a blocking device for a lid thereof, which blocking device is locked by means of a first locking device sensing the internal pressure in the vessel. This device in its turn is provided with a second locking device which works independently by sensing pressure or temperature inside the vessel and locks the first locking device in its locked position whenever pressure or temperature is dangerously high inside the vessel. The object is to assure a safe closing of the lid which is both foolproof and fail-safe.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: January 17, 1984
    Inventor: Arne I. Johansson
  • Patent number: 4262447
    Abstract: A closure for a sterilizer or other pressure vessel, the door having a compound motion to permit swinging movement on hinges and lateral sliding movement with respect to the hinges.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: April 21, 1981
    Assignee: Sybron Corporation
    Inventors: Michael L. Schneier, Henry B. Peters