Class / Patent application number | Description | Number of patent applications / Date published |
220890100 | Pressure relief means | 27 |
20090026199 | Pressure vacuum release hermetic valve for rigid container packages - A rigid container package, such as made of tin, metal, etc., having an interior for holding particulate material, such as food stuffs (like coffee beans), under vacuum, and which includes a mouth to be opened to provide access to the contents of the package. The package is preferably formed from a rigid material in the form of a container, such as a tin box, and has affixed thereon a one-way pressure-equalizing valve. The valve preferably includes a displaceable rubber disk located on a valve seat and is arranged to operate such that any gasses within the package are allowed to vent to the exterior of the package, by passing through the interface between the disk and valve seat, while the ambient atmosphere is substantially precluded from entering into the interior of the package. The disk then engages the valve seat to isolate the interior of the package from the exterior. A layer of silicone oil or similar material is preferably provided on the disk to facilitate operation of the valve. The valve is preferably attached to the rigid container via an aperture that is made slightly smaller than the exterior mating portion of the valve, such that the smaller portion of the valve can be passed through the aperture, and the expanded | 01-29-2009 |
20090266815 | PRESSURE COMPENSATION ELEMENT, IN PARTICULAR FOR PRESSURE COMPENSATION IN A HOUSING - The invention relates to a pressure compensation device for compensating pressure between an inner chamber of a housing, in particular an electric motor, gearbox, container or the like and an outer side. The device includes a pressure compensation membrane mounted on an annular end face of a cylindrical structure that extends toward the outer side. The cylindrical structure is provided with a ventilation channel that extends therethrough. The cylindrical structure extends towards the outer side in order to form a projection from the wall of the housing, which projection is delimited by the end face on which the membrane is applied in a curved, dome-shaped form. A protective cover extends towards the outer side at a spaced apart distance in relation to the membrane over the cylindrical structure. | 10-29-2009 |
20100006570 | VALVE, CONTAINER WITH VALVE AND USE OF THE VALVE - The invention relates to a valve, a container with the valve and the use of the valve. The valve, which is useful in a container to prevent an excessive pressure difference between the outside of the container and the inside of the container, comprises two blocking elements ( | 01-14-2010 |
20100065565 | GRADUAL RELEASE PRESSURIZING VALVE FOR FLUID STORAGE TANK BREATHER AND BREATHER INCLUDING SAME - A breather for a fluid storage tank, a storage tank incorporating same, and a method of releasing pressure in a fluid storage tank is provided. The present invention permits graduated release of pressure within the storage tank by allowing for varied flow rates of air out of the storage tank. In one embodiment, a valve assembly is provided that includes a valve member that has a graduated release feature that adjusts the size of a gap though the valve assembly formed between the valve member and a corresponding valve seat. | 03-18-2010 |
20100187230 | ONE-WAY VALVE FOR FLEXIBLE PACKAGE, METHOD OF MAKING THE SAME AND PACKAGE INCLUDING A ONE-WAY VALVE - A one-way valve and a flexible package including the valve are disclosed. The valve basically comprises a base member, a flexible septum and a stake. The base member is mounted on a wall of the package and includes a valve seat and at least one inlet port. The septum is formed of a resilient material and is connected to the base member by the stake, with a first portion of the septum contiguous with the stake fixed in position with respect to the base member and a second portion of the septum engaging the valve seat and covering and sealing the at least one inlet port. The septum is arranged to flex off of the valve seat to unseal the at least one inlet port when the pressure of gas at the at least one inlet port reaches a threshold. | 07-29-2010 |
20100294762 | Overpressure Relief Device for Closed Containers - The invention discloses a pressure release device for a closed container, in particular for a pressurized container for beverages, having a plug which can be sealingly fitted on an opening of the container and which comprises a passage opening, the passage opening being sealingly closed by a film. | 11-25-2010 |
20110303665 | RUPTURE PANEL - A rupture panel of three layers employs a lower layer (e.g. foam) that is adhesive, a middle layer (e.g. metallic) and a hold down layer. The middle layer has a weakened portion (scoring, openings, for example) that defines the panel burst pressure. A part of the lower layer does not connect to the middle layer. That part that does not connect to the middle layer adheres to the hold down layer. The hold down layer can be in the form of a ring with an open center, the weakened portion of the middle layer occupying a position within the open center of the hold down layer. | 12-15-2011 |
20120103983 | Pressure Relief Valve - A degassing valve in a flexible container is disclosed. The valve includes a generally flat valve seat on a truncated generally dome shaped structure, and the valve seat is raised a height above the valve chamber base surface. A resilient, non-perforated, non-spring-biased diaphragm is inter-engaged upon the valve seat and overlaps the valve seat outer periphery. The valve seat engages a central area of the diaphragm that is not proximate the perimeter of the diaphragm, and the dome shaped structure has a sectional radius greater than the diaphragm radius. A well is recessed into the valve seat in a direction away from the diaphragm by a depth less than the height of the valve seat above the valve chamber base surface. | 05-03-2012 |
20120138610 | FUEL TANK CONTROL VALVE FOR VEHICLE - Provided is a fuel tank control valve for a vehicle that appropriately and actively controls a loading pipe of an evaporation gas which is connected from a fuel tank to a canister, and prevents internal pressure of the fuel tank from excessively increasing or decreasing, by basically preventing the evaporation gas from being loaded from the fuel tank to the canister when the engine is turned off, allowing the evaporation gas to be loaded from the fuel tank to the canister when the engine is turned on, and allowing the evaporation gas to be loaded from the fuel tank to the canister, even if the engine is turned off, when the vehicle is filled with fuel. | 06-07-2012 |
20120175366 | VENT HOLE ALIGNMENT OF TEMPERATURE-PRESSURE RELIEF DEVICES ON PRESSURE VESSELS - A method for manufacturing a pressure vessel is provided. The method includes the steps of: providing the pressure vessel and a first temperature-pressure relief device, the temperature-pressure relief device having a housing; affixing the first temperature-pressure relief device to the pressure vessel; and forming a vent hole in the housing of the first temperature-pressure relief device after affixing the first temperature-pressure relieve device to the pressure vessel. The vent hole is selectively oriented in a desired direction via the method for manufacturing the pressure vessel. Temperature-pressure relief devices for vent hole alignment and selective orientation are also provided. | 07-12-2012 |
20120285956 | Pressure Discharge Valve For Storage Tanks - A pressure discharge valve for storage tanks on land or trucks including a valve body having a through hole therein adapted to mate and communicate with a through hole in a wall of the storage tank, a first vent means comprised of a eutectic composition which automatically provides a partial release of storage tank liquid at a first predetermined temperature lower than critical combustion and/or explosive temperatures of liquid in the storage tank, to provide a visual signal and warning to firefighters of these hazardous conditions, and a second vent means comprised of a eutectic composition to automatically vent liquid in the storage tank through the hole in the valve body when the liquids therein reach a predetermined critical temperature. In addition, the pressure discharge valve preferably comprises a eutectic solder material disposed between the valve body and the second vent means, which changes phase (i.e., reaches its eutectic point) below the eutectic point of the second vent means, thereby providing a lubricant between the plug and the valve body. | 11-15-2012 |
20120298658 | BIODEGRADABLE ONE-WAY VENTING VALVE FOR AN AIRTIGHT CONTAINER - The present invention concerns a venting valve for a container ( | 11-29-2012 |
20130048635 | Oil-less pressure relief valves - A self contained one-way pressure relief valve for application to product packaging that does not require the addition of a sealing lubricant. Atop a base with an opening extending through is an adhesive-like material layer, and a dry strap of a silicone or other release film coated membrane, all of which are of gas impervious materials. The release coated material layer covering the opening with the release film in contact with the adhesive-like material creating a surface attraction between the release film and the adhesive-like material. An intermediate layer of gas impervious material with an opening extending through provides for including a gas pervious filter material layer that may be for fine particulates or liquid proof. | 02-28-2013 |
20130098912 | Overpressure Security Vent and Exhaust Device for a Container - A vent and exhaust device for a container within which an overpressure of gas can be created during use, such as a battery for a vehicle. The device having a hollow body, suited to being arranged on an opening of such container with internal cavity, closed but communicating with the outside and with a passage connected to the inside of the container from which the gas that forms in the latter can pass to escape to the outside of the aforesaid body. There being placed on such passage a filter element permeable to such gas. Such filter element is subject to pressure placed in such cavity and suited to pushing it in the position of interception of the passage, but allowing the momentary opening of the latter for a venting of the gas when the pressure exceeds a predetermined value. | 04-25-2013 |
20130320010 | Pressure Discharge Valve for Storage Tanks - A pressure discharge valve for storage tanks on land or trucks including a valve body having a through hole therein adapted to mate and communicate with a through hole in a wall of the storage tank, a first vent means comprised of a eutectic composition which automatically provides a partial release of storage tank liquid at a first predetermined temperature lower than critical combustion and/or explosive temperatures of liquid in the storage tank, to provide a visual signal and warning to firefighters of these hazardous conditions, and a second vent means comprised of a eutectic composition to automatically vent liquid in the storage tank through the hole in the valve body when the liquids therein reach a predetermined critical temperature. In addition, the pressure discharge valve preferably comprises a eutectic solder material disposed between the valve body and the second vent means, which changes phase (i.e., reaches its eutectic point) below the eutectic point of the second vent means, thereby providing a lubricant between the plug and the valve body. | 12-05-2013 |
20140076892 | Air Relief Valve Structure of Pressure Cooker - In an air relief valve structure of a pressure cooker, the pressure cooker includes a cooker body and a lid. The lid has a containing trough and an air relief valve. The air relief valve includes a middle column, an airtight column, an elastic element and a gravity valve. The middle column has a containing space and air relief and through holes formed on an outer wall of the middle column and interconnected with the containing space. In the containing space, an airtight column is installed. An end column is defined at an end of the airtight column and is disposed adjacent to an inner wall of the middle column, and the end column has a diameter equal to the diameter of the middle column. The air relief hole allows food material to be discharged easily to reduce pressure and enhance the overall safety of the pressure cooker. | 03-20-2014 |
220890200 | Frangible pressure relief means | 11 |
20090302035 | RUPTURE DISC WITH MACHINED LINE OF OPENING - A reverse acting rupture disc and methods of forming the same are provided. Generally, the rupture disc comprises a bulged portion and a circumscribing flange area surrounding the bulged portion. The bulged portion includes a mechanically formed line-of-opening recess comprising a singular channel. In certain embodiments, the mechanical process by which the recess is formed utilizes a high-speed mill which removes a portion of metal from the bulged portion of the disc without disrupting the substantially uniform metallic grain structure of the metal adjacent the channel. | 12-10-2009 |
20100108671 | Pressure Relief System - A pressure relief system including a container having (a) at least two layers sealed together to form a closed cavity and (b) a stress point area is disclosed. The stress point area is configured to rupture upon sufficient pressure being generated in the closed cavity so that venting of pressurized contents of the container cavity may occur without explosive bursting of the container. | 05-06-2010 |
20100140264 | CONTROLLING THE RATED BURST PRESSURE OF A RUPTURE DISC THROUGH THE USE OF CONTROL SCORES ON THE DISC DOME - A rupture disc for use in a pressure relief system includes a dome having a concave and a convex side and a circumferential flange associated therewith. At least one control score is formed or otherwise produced in the dome at a radial position between an apex of the dome and an outer circumference of the dome. At least one of a depth, a width, a length and the radial portion of the at least one control score is selectively controlled so that the depth, width, length, and/or radial position of the at least one control score controls the pressure at which the dome will start to collapse. | 06-10-2010 |
20110127263 | FIRE SAFETY APPARATUS OF HIGH-PRESSURE GAS FUEL TANK FOR VEHICLE - The present invention relates to a fire safety apparatus for a high-pressure fuel tank of a vehicle, which can prevent a high-pressure fuel tank from exploding due to a fire and preferably preclude secondary damage due to high-pressure fuel tank, by forcibly discharging the high-pressure gas in high-pressure fuel tank, using a pressure operator, before high-pressure fuel tank is damaged and exploded by flame in a vehicle on fire. | 06-02-2011 |
20120138611 | Pressurized Gas Release Mechanism - A gas seal for containing a pressurized fluid in a container. The gas seal includes a rupturable portion having a stress riser formed therein, and an extension coupled to the rupturable portion proximate the stress riser such that a predetermined minimum force applied to the extension is transferred to the stress riser to produce a rupture of the rupturable portion. | 06-07-2012 |
20130020320 | PRESSURE RELIEF DEVICE FOR PRESSURIZED CONTAINER - A pressure relief device of domed construction for venting an internally pressurized container. The pressure release device includes a coined pressure vent and is characterized by a relatively high venting pressure in combination with a failure pressure in the absence of venting which is higher than the intended venting pressure. The pressure relief device includes a sloped sidewall having an outer annular segment and a sloped annular intermediate segment. The sloped annular intermediate segment has a width dimension greater than the width dimension of the outer annular segment. A circular central plateau defines a flat dome top. The circular central plateau has a center point with an arc shaped coin line extending about an arc with the apex of the arc positioned at the center point of the circular central plateau. | 01-24-2013 |
20130180984 | RUPTURE PANEL - A rupture panel of three layers employs a lower layer (e.g. foam) that is adhesive, a middle layer (e.g. metallic) and a hold down layer. The middle layer has a weakened portion (scoring, openings, for example) that defines the panel burst pressure. A part of the lower layer does not connect to the middle layer. That part that does not connect to the middle layer adheres to the hold down layer. The hold down layer can be in the form of a ring with an open center, the weakened portion of the middle layer occupying a position within the open center of the hold down layer. | 07-18-2013 |
20140021203 | RUPTURE DISC HAVING LASER-DEFINED REVERSAL INITIATION AND DEFORMATION CONTROL FEATURES - A reverse-acting rupture disc ( | 01-23-2014 |
20140238984 | RUPTURE DISC HAVING LASER-DEFINED LINE OF WEAKNESS WITH DISC OPENING AND ANTI-FRAGMENTATION CONTROL STRUCTURES - A rupture disc ( | 08-28-2014 |
20150298902 | REVERSE-ACTING RUPTURE DISC WITH BUCKLING-CONTROL FEATURE - A reverse-acting pressure relief device ( | 10-22-2015 |
20160069462 | CERAMIC RUPTURE DOME FOR PRESSURE CONTROL - A one-time-use pressure-actuated conduit closure is provided, to selectively withstand fluid pressure from one side of the device until the closure is removed remotely, the closure device being a frangible dome designed to withstand fluid pressures from one side but to rupture upon application of higher pressure on its other side, which provides a mechanism to isolate downhole fluid under (high) pressures in part of a well during operations for a period of time selected by an operator, and then to remove the isolation by breaking the rupture dome remotely by application of extra fluid pressure or other forces from surface. The frangible dome has features in at least one surface to guide and control its breakage to provide controlled shard sizes and shapes and a predictable opening for minimal obstruction of the conduit when broken away. | 03-10-2016 |