Preventing Opening Of Closure Of Pressurized Apparatus At Unsafe Pressure Patents (Class 422/118)
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Publication number: 20130247628Abstract: 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: ApplicationFiled: February 22, 2011Publication date: September 26, 2013Inventor: Daniel RIVERO SERRANO
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Publication number: 20130230426Abstract: 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: ApplicationFiled: September 23, 2011Publication date: September 5, 2013Applicant: Universite de Reims Champagne ArdenneInventors: Jean-Marc Popot, Marie-Paule Gelle
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Patent number: 7829040Abstract: 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: GrantFiled: March 5, 2009Date of Patent: November 9, 2010Assignee: CEM CorporationInventors: Wyatt Hargett, Jr., David Barclay
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Publication number: 20100266445Abstract: 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: ApplicationFiled: April 16, 2010Publication date: October 21, 2010Inventor: Kenneth L. Campagna
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Publication number: 20100261895Abstract: 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: ApplicationFiled: June 29, 2010Publication date: October 14, 2010Inventors: Anthony P. Noll, Scott F. Hicks
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Patent number: 7491368Abstract: 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: GrantFiled: July 14, 2005Date of Patent: February 17, 2009Assignee: Equistar Chemicals, LPInventors: Keith L. Vogel, Michael A. Middleton
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Patent number: 7192561Abstract: 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: GrantFiled: June 20, 2001Date of Patent: March 20, 2007Assignee: Basell Polyolefine GmbHInventors: Georg Groos, Klaus Hammer
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Patent number: 7147828Abstract: 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: GrantFiled: January 23, 2002Date of Patent: December 12, 2006Assignee: Sony CorporationInventors: Noritaka Sato, Tsutomu Noguchi
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Patent number: 7105061Abstract: 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: GrantFiled: November 7, 2001Date of Patent: September 12, 2006Assignee: Novellus Systems, Inc.Inventors: Krishnan Shrinivasan, Arkadiy Shimanovich, Vladimir Starov
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Patent number: 6863871Abstract: 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: GrantFiled: May 16, 2001Date of Patent: March 8, 2005Assignee: CEM CorporationInventor: Wyatt Price Hargett, Jr.
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Publication number: 20040042943Abstract: 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: ApplicationFiled: September 5, 2002Publication date: March 4, 2004Inventor: Johan Wanselin
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Publication number: 20030202901Abstract: 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: ApplicationFiled: April 29, 2002Publication date: October 30, 2003Inventor: Eric J. Stetzel
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Patent number: 6391258Abstract: 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: GrantFiled: October 7, 1999Date of Patent: May 21, 2002Assignee: Barnstead/Thermolyne CorporationInventors: Steven C. Peake, Jason A. Harms
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Patent number: 6287526Abstract: 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: GrantFiled: June 1, 1999Date of Patent: September 11, 2001Assignee: CEM CorporationInventor: Wyatt Price Hargett, Jr.
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Patent number: 5861126Abstract: 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: GrantFiled: January 6, 1997Date of Patent: January 19, 1999Assignee: Industrie Chimique Mulhouse DornachInventor: Daniel Bajolet
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Patent number: 5582799Abstract: 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: GrantFiled: March 27, 1995Date of Patent: December 10, 1996Assignee: Pfaudler, Inc.Inventors: Franklyn J. Amorese, Morris E. Gruver, III
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Patent number: 5432265Abstract: 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: GrantFiled: July 27, 1993Date of Patent: July 11, 1995Assignee: The United States of America as represented by the Secretary of AgricultureInventor: Peggy M. Tomasula
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Patent number: 5424047Abstract: 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: GrantFiled: February 23, 1994Date of Patent: June 13, 1995Assignee: Sci-Can, Div. of Lux and Zwingenberger Ltd.Inventors: Arthur Zwingenberger, Martin Saupe
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Patent number: 4999165Abstract: 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: GrantFiled: October 27, 1989Date of Patent: March 12, 1991Assignee: MDT CorporationInventors: Daniel Calabra, Charles O. Hancock, Brian Avant
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Patent number: 4813784Abstract: 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: GrantFiled: August 25, 1987Date of Patent: March 21, 1989Inventor: Joseph E. Musil
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Patent number: 4426358Abstract: 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: GrantFiled: April 28, 1982Date of Patent: January 17, 1984Inventor: Arne I. Johansson
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Patent number: 4262447Abstract: 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: GrantFiled: August 20, 1979Date of Patent: April 21, 1981Assignee: Sybron CorporationInventors: Michael L. Schneier, Henry B. Peters