Patents by Inventor Angraj Kumar Seewraj
Angraj Kumar Seewraj 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: 9370820Abstract: The present invention provides a hydro-pneumatically operated fastener installation tool (2), including a head (4) having hydraulically driven gripping and pulling means for gripping and pulling the stem of a fastener, thereby to install the fastener, and a hydraulic inlet port (6) provided in the head (4) for supplying hydraulic fluid to a cylinder (8) to drive the gripping and pulling means, wherein the cross-sectional shape of the hydraulic inlet port (6) is non-circular, such that a cross section of the inlet port (6) has a longitudinal axis and lateral axis, wherein the longitudinal axis runs widthways across the tool head (4).Type: GrantFiled: January 10, 2013Date of Patent: June 21, 2016Assignee: AVDEL UK LIMITEDInventors: Angraj Kumar Seewraj, Peter Michael Beecherl
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Publication number: 20130117981Abstract: The present invention provides a hydro-pneumatically operated fastener installation tool (2), including a head (4) having hydraulically driven gripping and pulling means for gripping and pulling the stem of a fastener, thereby to install the fastener, and a hydraulic inlet port (6) provided in the head (4) for supplying hydraulic fluid to a cylinder (8) to drive the gripping and pulling means, wherein the cross-sectional shape of the hydraulic inlet port (6) is non-circular, such that a cross section of the inlet port (6) has a longitudinal axis and lateral axis, wherein the longitudinal axis runs widthways across the tool head (4).Type: ApplicationFiled: January 10, 2013Publication date: May 16, 2013Applicant: AVDEL UK LIMITEDInventors: Angraj Kumar SEEWRAJ, Peter Michael BEECHERL
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Patent number: 8302272Abstract: A manually held hydraulically and pneumatically powered swaging tool for swaging a collar (35) onto a grooved or threaded bolt (36) includes jaws (39) having internal grooves (40) which match the groove (20) on the bolt. The jaws (39) are openable to receive the projecting portion of the bolt (36) and are closable to engage the bolt. An anvil (26) outside the jaws is axially movable by hydraulic means forwards over the jaws to lock them into engagement with the bolt, and then to force the anvil over the collar (35) to swage it to the bolt. The tool includes a detection rod (40) for detecting when the bolt (36) has been fully inserted into the open jaw (39). Thereby to initiate closure of the jaws by pneumatic means. Also, initial forwards movement of the anvil (26) is arranged to move the jaws axially forwards by an appropriate small distance, if this is necessary to axially align the grooves (40) on the jaws correctly in relation to the groove (20) on the bolt to enable closure of the jaws.Type: GrantFiled: January 11, 2007Date of Patent: November 6, 2012Assignee: Avdel UK LimitedInventors: Aiden Robert Dear, Angraj Kumar Seewraj
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Patent number: 8151423Abstract: A fastener installation tool for installing breakstem fasteners, wherein a part of the fastener is broken off during installation and ejected into a collector bottle, provided with a safety disabling means, comprising a valve located in series with and between the tool trigger and main operating valve, wherein removal of the collector bottle causes the valve to close to prevent operation of the main operating valve, thereby to prevent use of the tool with the connector bottle disconnected.Type: GrantFiled: October 23, 2008Date of Patent: April 10, 2012Assignee: Avdel UK LimitedInventors: Aiden Dear, Angraj Kumar Seewraj, Simon Andrew
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Patent number: 7926157Abstract: A breakstem rivet placing tool conventionally includes a flow restrictions for hydraulic fluid used to drive the tool in a stem pulling direction. This serves to prevent recoil of the tool due to rapid acceleration of an internal piston when the stem of the breakstem rivet breaks. Prior art flow restrictions create a jet of high velocity hydraulic fluid into the tool which may damage components by erosion. A revised fluid damper valve deflects and/or diffuses the fluid flow to avoid damage by erosion.Type: GrantFiled: March 19, 2007Date of Patent: April 19, 2011Assignee: Avdel UK LimitedInventors: Angraj Kumar Seewraj, Terence Gilbert
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Publication number: 20100314430Abstract: A fastener installation tool for installing breakstem fasteners, wherein a part of the fastener is broken installation and ejected into a collector bottle, provided with a safety disabling means, comprising a valve located in series with and between the tool trigger and main operating valve, wherein removal of the collector bottle causes the valve to close to prevent operation of the main operating valve, thereby to prevent use of the tool with the connector bottle disconnected.Type: ApplicationFiled: October 23, 2008Publication date: December 16, 2010Applicant: AVDEL UK LIMITEDInventors: Aiden Dear, Angraj Kumar Seewraj, Simon Andrew
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Publication number: 20100170071Abstract: A manually held hydraulically and pneumatically powered swaging tool for swaging a collar (35) onto a grooved or threaded bolt (36) includes jaws (39) having internal grooves (40) which match the groove (20) on the bolt. The jaws (39) are openable to receive the projecting portion of the bolt (36) and are closable to engage the bolt. An anvil (26) outside the jaws is axially movable by hydraulic means forwards over the jaws to lock them into engagement with the bolt, and then to force the anvil over the collar (35) to swage it to the bolt. The tool includes a detection rod (40) for detecting when the bolt (36) has been fully inserted into the open jaw (39). Thereby to initiate closure of the jaws by pneumatic means. Also, initial forwards movement of the anvil (26) is arranged to move the jaws axially forwards by an appropriate small distance, if this is necessary to axially align the grooves (40) on the jaws correctly in relation to the groove (20) on the bolt to enable closure of the jaws.Type: ApplicationFiled: January 11, 2007Publication date: July 8, 2010Applicant: AVDEL UK LIMITEDInventors: Aiden Robert Dear, Angraj Kumar Seewraj
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Publication number: 20090205184Abstract: The present invention provides a hydro-pneumatically operated fastener installation tool (2), including a head (4) having hydraulically driven gripping and pulling means for gripping and pulling the stem of a fastener, thereby to install the fastener, and a hydraulic inlet port (6) provided in the head (4) for supplying hydraulic fluid to a cylinder (8) to drive the gripping and pulling means, wherein the cross-sectional shape of the hydraulic inlet port (6) is non-circular, such that a cross section of the inlet port (6) has a longitudinal axis and lateral axis, wherein the longitudinal axis runs widthways across the tool head (4).Type: ApplicationFiled: January 28, 2008Publication date: August 20, 2009Applicant: Avdel UK LimitedInventors: Angraj Kumar Seewraj, Peter Michael Beecherl
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Publication number: 20080302168Abstract: A breakstem rivet placing tool conventionally includes a flow restrictions for hydraulic fluid used to drive the tool in a stem pulling direction. This serves to prevent recoil of the tool due to rapid acceleration of an internal piston when the stem of the breakstem rivet breaks. Prior art flow restrictions create a jet of high velocity hydraulic fluid into the tool which may damage components by erosion. A revised fluid damper valve deflects and/or diffuses the fluid flow to avoid damage by erosion.Type: ApplicationFiled: March 19, 2007Publication date: December 11, 2008Applicant: AVDEL UK LIMITEDInventors: Angraj Kumar Seewraj, Terence Gilbert
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Patent number: 6637099Abstract: A riveting apparatus is described, including a body having an abutment means (19,32) mounted at one end thereof, and stop means (52,53) mounted at a position remote therefrom, so that a mandrel (30) inserted through the abutment means (19,32) has it end remote from the head located axially by the stop means (52,53) in predetermined axial relationship to the body, characterized in that the abutment means (19,32) is adjustable with respect to the body in the direction along the mandrel axis, thereby to provide adjustment of the relative positions of the abutment (19,32) and the mandrel head (33). A pneumatic piston means for use in the rivet feeding means (55) in the riveting apparatus is also described.Type: GrantFiled: December 20, 2000Date of Patent: October 28, 2003Assignee: Textron Fastening Systems LimitedInventor: Angraj Kumar Seewraj