Patents by Inventor Arthur Dubbeldam
Arthur Dubbeldam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6491055Abstract: A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the fluid flowpath. The body is engageable with the system to expose the plug to the pressurized fluid so that the pressurized fluid acts on the plug to exert a torque on the shaft which is offset from the center line of the plug. The apparatus further includes a linkage assembly configured to translate the torque exerted on the shaft into an output force. A release device, such as a buckling pin or a magnet, is connected to the linkage assembly and is configured to release the shaft when the output force exceeds a predetermined limit. Preferably, the linkage assembly is adjustable to vary the magnitude of the output force corresponding to a given torque.Type: GrantFiled: September 25, 2001Date of Patent: December 10, 2002Assignee: BS&B Safety Systems, Inc.Inventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam, Michael Hitz
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Patent number: 6488044Abstract: A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the fluid flowpath. The body is engageable with the system to expose the plug to the pressurized fluid so that the pressurized fluid acts on the plug to exert a torque on the shaft which is offset from the center line of the plug. The apparatus further includes a linkage assembly configured to translate the torque exerted on the shaft into an output force. A release device, such as a buckling pin or a magnet, is connected to the linkage assembly and is configured to release the shaft when the output force exceeds a predetermined limit. Preferably, the linkage assembly is adjustable to vary the magnitude of the output force corresponding to a given torque.Type: GrantFiled: May 24, 2001Date of Patent: December 3, 2002Assignee: BS&B Safety Systems, Inc.Inventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam, Michael Hitz
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Patent number: 6484742Abstract: A cartridge assembly for a valve is disclosed. The cartridge assembly includes a cartridge containing an activation component. The cartridge and activation component are configured to be replaceable as a unit. The activation component prevents the valve from either opening or closing until either a predetermined pressure is exerted on the valve or a predetermined temperature is experienced by the activation component. The cartridge may include any of a variety of activation component types, such as buckling pins, tensile pins, shear pins, springs, or fusible alloys, either individually or in combination to control the valve opening or closing.Type: GrantFiled: March 30, 2000Date of Patent: November 26, 2002Assignee: BS & B Safety Systems, Inc.Inventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam
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Patent number: 6367498Abstract: A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the fluid flowpath. The body is engageable with the system to expose the plug to the pressurized fluid so that the pressurized fluid acts on the plug to exert a torque on the shaft which is offset from the center line of the plug. The apparatus further includes a linkage assembly configured to translate the torque exerted on the shaft into an output force. A release device, such as a buckling pin or a magnet, is connected to the linkage assembly and is configured to release the shaft when the output force exceeds a predetermined limit. Preferably, the linkage assembly is adjustable to vary the magnitude of the output force corresponding to a given torque.Type: GrantFiled: January 6, 2000Date of Patent: April 9, 2002Assignee: BS&B Safety Systems, Inc.Inventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam, Michael Hitz
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Publication number: 20020007848Abstract: A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the fluid flowpath. The body is engageable with the system to expose the plug to the pressurized fluid so that the pressurized fluid acts on the plug to exert a torque on the shaft which is offset from the center line of the plug. The apparatus further includes a linkage assembly configured to translate the torque exerted on the shaft into an output force. A release device, such as a buckling pin or a magnet, is connected to the linkage assembly and is configured to release the shaft when the output force exceeds a predetermined limit. Preferably, the linkage assembly is adjustable to vary the magnitude of the output force corresponding to a given torque.Type: ApplicationFiled: September 25, 2001Publication date: January 24, 2002Applicant: BS&B Safety SystemsInventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam, Michael Hitz
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Publication number: 20010027808Abstract: A pressure relief apparatus includes a valve having a body. A shaft is rotatably disposed in the body and has an exterior end extending through the body. A plug, which may contain an internal passageway, is mounted on the shaft and is disposed in the fluid flowpath. The body is engageable with the system to expose the plug to the pressurized fluid so that the pressurized fluid acts on the plug to exert a torque on the shaft which is offset from the center line of the plug. The apparatus further includes a linkage assembly configured to translate the torque exerted on the shaft into an output force. A release device, such as a buckling pin or a magnet, is connected to the linkage assembly and is configured to release the shaft when the output force exceeds a predetermined limit. Preferably, the linkage assembly is adjustable to vary the magnitude of the output force corresponding to a given torque.Type: ApplicationFiled: May 24, 2001Publication date: October 11, 2001Applicant: BS&S Safety SystemsInventors: Geof Brazier, Arthur Dubbeldam, Peter Dubbeldam, Michael Hitz