Patents by Inventor Raj S. Roychoudhury
Raj S. Roychoudhury 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: 8475904Abstract: A hollow article is provided having a first wall, a second wall and a plurality of edge walls interconnecting the first wall and second wall. A covering is bonded to the hollow article, wherein the covering is bonded to the first wall, and is dimensioned to partially wrap around the hollow article.Type: GrantFiled: November 3, 2011Date of Patent: July 2, 2013Assignee: Salflex Polymers LimitedInventors: Stephen Hawkins, Raj S. Roychoudhury, David Flajnik
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Patent number: 8459689Abstract: An energy management system for mounting in a vehicle, the energy management system comprising an inflatable bolster for mounting in a glove box door of a glove box of the vehicle, the inflatable bolster including an expansible hollow interior, an inflator module for inflating the expansible hollow interior, a front wall for projecting inwardly into the vehicle and away from the glove box on inflation of the expansible hollow interior, and a back wall located between the expansible hollow interior and the glove box, and a support structure for mounting to the inflatable bolster, the support structure being operable to resist the back wall being forced into the glove box due to inflation of the inflatable bolster.Type: GrantFiled: December 23, 2010Date of Patent: June 11, 2013Assignee: Salflex Polymers Ltd.Inventor: Raj S. Roychoudhury
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Patent number: 8388020Abstract: Described is an inflatable multilayer bolster for a vehicle passenger compartment including a hollow body with back and front walls, an air chamber formed between them, and an inflator for injecting pressurized fluid to inflate the hollow body. Preferably, both the front and back walls have an inner layer made of a structural deformable material and an outer surfacing layer co-extruded with the inner layer. Also described is a method of manufacturing the multilayer bolster by co-extruding first and second polymers through a die to produce a parison, and then blow-molding the parison to form the hollow body. Thus the front wall and preferably the back wall as well have an inner layer made of the first polymer in a structural deformable condition and an outer surfacing layer made of the second polymer. This co-extruded multilayer constructed bolster allows efficient manufacturing, structural, inflation and aesthetic characteristics.Type: GrantFiled: April 14, 2009Date of Patent: March 5, 2013Assignee: Salflex Polymers Ltd.Inventors: Rimas Ciplijauskas, Michael James Best, Babak Fana, Raj S. Roychoudhury
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Publication number: 20120177876Abstract: A hollow article is provided, comprising a first wall and a second wall, where the first and second walls are positioned in opposing relationship and define a space therebetween. A plurality of protruding structural pillars extend from the second wall and span the space, each of the structural pillars having an end surface integrally bonded with an inside surface of the first wall.Type: ApplicationFiled: June 1, 2011Publication date: July 12, 2012Applicant: Saflex Polymers Ltd.Inventors: Raj S. Roychoudhury, Stephen Hawkins
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Publication number: 20120114885Abstract: A hollow article is provided having a first wall, a second wall and a plurality of edge walls interconnecting the first wall and second wall. A covering is bonded to the hollow article, wherein the covering is bonded to the first wall, and is dimensioned to partially wrap around the hollow article.Type: ApplicationFiled: November 3, 2011Publication date: May 10, 2012Applicant: SALFLEX POLYMERS LIMITEDInventors: Stephen Hawkins, Raj S. Roychoudhury, David Flajnik
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Publication number: 20120112439Abstract: Provided is an active bolster for a vehicle occupant, the active bolster comprising a rear panel, an internal structure, and a front panel. The internal structure is disposed between the rear panel and the front panel, and the internal structure and rear panel together forming a hollow chamber in communication with an inflation device. The hollow chamber is expandable on activation of the inflation device. The internal structure has at least one expandable element such that upon pressurization of the hollow chamber by the inflation device, at least a portion of the at least one expandable element undergoes deformation to permit inflation of the hollow chamber, thereby displacing the rear panel rearwardly to an extended position.Type: ApplicationFiled: August 23, 2011Publication date: May 10, 2012Applicant: Salflex Polymers Ltd.Inventor: Raj S. Roychoudhury
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Publication number: 20120080871Abstract: This invention is in the field of safety devices to lessen injuries arising from impact in vehicles, particularly automobiles. A bolster which may be employed to reduce impact severity to passengers from either frontal or side impacts is activated by impact sensing devices. The housing of the bolster has a lateral length L. Upon activation, the bolster is inflated with an activating fluid and extends the lateral length L of bolster upon activation.Type: ApplicationFiled: July 11, 2011Publication date: April 5, 2012Inventors: Raj S. Roychoudhury, Michael James Best, Timothy W. Chapman, Rimas Ciplijauskas, Changize Sadr, Ali Totonchian
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Publication number: 20110272926Abstract: An inflatable active bolster for a vehicle occupant, the bolster having a first body section and a second body section interconnected by a living hinge. The first and second body sections are folded about the living hinge to form a hollow chamber. The first body section provides an outer surface for facing the vehicle occupant, while the second body section provides a support surface for coupling the inflatable active bolster to a vehicle. At least one of the first and second body sections provides at least one expansible element such that upon pressurization of the hollow chamber, at least a portion of the at least one expansible element undergoes deformation to permit inflation of the hollow chamber, thereby displacing the outer surface of the first body section outwardly to an extended position.Type: ApplicationFiled: May 4, 2011Publication date: November 10, 2011Inventors: Raj S. Roychoudhury, Stephen Hawkins, Nicholas Herdegen, Dave Flajnik
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Publication number: 20110198827Abstract: An energy management system for mounting in a vehicle, the energy management system comprising an inflatable bolster for mounting in a glove box door of a glove box of the vehicle, the inflatable bolster including an expansible hollow interior, an inflator module for inflating the expansible hollow interior, a front wall for projecting inwardly into the vehicle and away from the glove box on inflation of the expansible hollow interior, and a back wall located between the expansible hollow interior and the glove box, and a support structure for mounting to the inflatable bolster, the support structure being operable to resist the back wall being forced into the glove box due to inflation of the inflatable bolster.Type: ApplicationFiled: December 23, 2010Publication date: August 18, 2011Inventor: Raj S. Roychoudhury
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Patent number: 7992895Abstract: This invention is in the field of safety devices to lessen injuries arising from impact in vehicles, particularly automobiles. A bolster which may be employed to reduce impact severity to passengers from either frontal or side impacts is activated by impact sensing devices. The housing of the bolster has a lateral length L. Upon activation, the bolster is inflated with an activating fluid and extends the lateral length L of the bolster upon activation.Type: GrantFiled: November 16, 2006Date of Patent: August 9, 2011Assignee: Salflex Polymers Ltd.Inventors: Raj S. Roychoudhury, Michael James Best, Timothy W. Chapman, Rimas Ciplijauskas, Changize Sadr, Ali Totonchian
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Publication number: 20110123739Abstract: Described is an inflatable multilayer bolster for a vehicle passenger compartment including a hollow body with back and front walls, an air chamber formed between them, and an inflator for injecting pressurized fluid to inflate the hollow body. Preferably, both the front and back walls have an inner layer made of a structural deformable material and an outer surfacing layer co-extruded with the inner layer. Also described is a method of manufacturing the multilayer bolster by co-extruding first and second polymers through a die to produce a parison, and then blow-molding the parison to form the hollow body. Thus the front wall and preferably the back wall as well have an inner layer made of the first polymer in a structural deformable condition and an outer surfacing layer made of the second polymer. This co-extruded multilayer constructed bolster allows efficient manufacturing, structural, inflation and aesthetic characteristics.Type: ApplicationFiled: April 14, 2009Publication date: May 26, 2011Inventors: Rimas Ciplijauskas, Michael James Best, Babak Fana, Raj S. Roychoudhury
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Publication number: 20110115201Abstract: An inflatable bolster for use in a passenger compartment of a vehicle comprises a hollow body having a first wall having a central area and a circumferential area surrounding the central area, a second wall opposite the first wall, and an air chamber formed between the first and second walls. The inflatable bolster also comprises an inflator for injecting a pressurized fluid into the air chamber which is mounted to the hollow body. The inflatable bolster also comprises a plurality of concentric extension pleats formed in the first wall. The extension pleats extend around a major part of the circumferential area. The extension pleats contact the second wall at a plurality of contact points which are distributed across the second wall. The plurality of contact points is sufficient in number to at least partially suppress audible vibration of the second wall.Type: ApplicationFiled: April 14, 2009Publication date: May 19, 2011Inventors: Michael James Best, Raj S. Roychoudhury, Rimas Ciplijauskas, Babak Fana
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Publication number: 20110109064Abstract: An inflatable bolster for use in a passenger compartment of a vehicle is provided having a hollow body, an inflator and an attachment mechanism for attaching the hollow body to the vehicle's mating surface. The attachment mechanism includes a base retained within a molded cavity within the hollow body, and a fastener projection extending outward from both the base and the hollow body. Another attachment mechanism is provided including a dovetail portion which extends outward from the hollow body and engages a slot in the mating surface.Type: ApplicationFiled: April 14, 2009Publication date: May 12, 2011Inventors: Michael James Best, Raj S. Roychoudhury, Rimas Ciplijauskas, Babak Fana
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Patent number: 7481457Abstract: A bolster for assembly to an instrument panel assembly of an automotive vehicle is provided. The vehicle has a steering column with a steering column axis and at least two energy absorbing brackets located laterally to either side of the steering column axis. The bolster comprises a unitary structure having a generally forward wall and a generally aft wall. The forward wall has a forward wall, forward surface. The forward wall, forward surface includes first and second bolster transfer surfaces for transferring forces from the bolster to the energy absorbing brackets. The bolster further comprises a plurality of generally laterally extending rib structures. The rib structures extend from adjacent the first bolster transfer surface to adjacent the second bolster transfer surface.Type: GrantFiled: March 6, 2008Date of Patent: January 27, 2009Assignee: Salflex Polymers Ltd.Inventors: Michael James Best, Dale Carson, Timothy W. Chapman, Rimas Ciplijauskas, Babak Fana, Gary Gerlach, Raj S. Roychoudhury, Changize Sadr, Ali Totonchian
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Patent number: 7393013Abstract: A bolster for assembly to an instrument panel assembly of an automotive vehicle is provided. The vehicle has a steering column with a steering column axis and at least two energy absorbing brackets located laterally to either side of the steering column axis. The bolster comprises a unitary structure having a generally forward wall and a generally aft wall. The forward wall has a forward wall, forward surface. The forward wall, forward surface includes first and second bolster transfer surfaces for transferring forces from the bolster to the energy absorbing brackets. The bolster further comprises a plurality of generally laterally extending rib structures. The rib structures extend from adjacent the first bolster transfer surface to adjacent the second bolster transfer surface.Type: GrantFiled: August 31, 2004Date of Patent: July 1, 2008Assignee: Salflex Polymers Ltd.Inventors: Michael James Best, Dale Carson, Timothy W. Chapman, Rimas Ciplijauskas, Babak Fana, Gary Gerlach, Raj S. Roychoudhury, Changize Sadr, Ali Totonchian
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Publication number: 20080150268Abstract: A bolster for assembly to an instrument panel assembly of an automotive vehicle is provided. The vehicle has a steering column with a steering column axis and at least two energy absorbing brackets located laterally to either side of the steering column axis. The bolster comprises a unitary structure having a generally forward wall and a generally aft wall. The forward wall has a forward wall, forward surface. The forward wall, forward surface includes first and second bolster transfer surfaces for transferring forces from the bolster to the energy absorbing brackets. The bolster further comprises a plurality of generally laterally extending rib structures. The rib structures extend from adjacent the first bolster transfer surface to adjacent the second bolster transfer surface.Type: ApplicationFiled: March 6, 2008Publication date: June 26, 2008Inventors: Michael James Best, Dale Carson, Timothy W. Chapman, Rimas Ciplijauskas, Babak Fana, Gary Gerlach, Raj S. Roychoudhury, Changize Sadr, Ali Totonchian
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Patent number: 6942244Abstract: New and useful constructions for an airbag cover and housing, and new and useful assembly technique for coupling the airbag housing and cover to form an airbag module, are provided. According to the present invention an airbag cover and housing are configured so that the cover is tightly fit over the housing as the cover is coupled to the housing. The housing has an array of hooks and retainers, each formed in one piece with the housing. The hooks and retainers are oriented toward each other and are configured to: (a) enable the cover to be tightly fit over the housing; (b) capture a portion of the cover between the hooks and the retainers; (c) prevent over travel of the cover during coupling of the cover with the housing; and (d) retain the cover securely coupled to the housing during deployment of an airbag from the module. Additionally, the configuration of the housing provides flexibility in the manner in which the housing can be formed, because it enables the housing to be formed e.g.Type: GrantFiled: June 25, 2003Date of Patent: September 13, 2005Assignee: Key Safety Systems, Inc.Inventor: Raj S. Roychoudhury
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Publication number: 20040262889Abstract: New and useful constructions for an airbag cover and housing, and new and useful assembly technique for coupling the airbag housing and cover to form an airbag module, are provided. According to the present invention an airbag cover and housing are configured so that the cover is tightly fit over the housing as the cover is coupled to the housing. The housing has an array of hooks and retainers, each formed in one piece with the housing. The hooks and retainers are oriented toward each other and are configured to: (a) enable the cover to be tightly fit over the housing; (b) capture a portion of the cover between the hooks and the retainers; (c) prevent over travel of the cover during coupling of the cover with the housing; and (d) retain the cover securely coupled to the housing during deployment of an airbag from the module. Additionally, the configuration of the housing provides flexibility in the manner in which the housing can be formed, because it enables the housing to be formed e.g.Type: ApplicationFiled: June 25, 2003Publication date: December 30, 2004Inventor: Raj S. Roychoudhury
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Patent number: 6786510Abstract: A seat belt system for securing a seated occupant to a seat, the system comprising: a single continuous length of seat belt webbing, the seat belt including first and second ends; a first anchor located near the juncture of the seat belt and seat cushion with a buckle positioned on the other side of the cushion, a movable anchor guide or second web guide for orientating portions of the seat belt relative to the seat; second means for moving the seat belt away from the seat to encourage the occupant's entry onto the seat and for thereafter manipulating the seat belt about the seated occupant so that a portion of the seat belt forms a lap belt about the seated occupant and wherein other portions of the seat belt form two relatively criss-crossed shoulder belt segments of seat belt in front of the seated occupant.Type: GrantFiled: August 20, 2002Date of Patent: September 7, 2004Assignee: Key Safety Systems, Inc.Inventors: Raj S. Roychoudhury, Peter C. Kempf, Richard W. Koning
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Publication number: 20040036270Abstract: A seat belt system for securing a seated occupant to a seat, the system comprising: a single continuous length of seat belt webbing, the seat belt including first and second ends; a first anchor located near the juncture of the seat belt and seat cushion with a buckle positioned on the other side of the cushion, a movable anchor guide or second web guide for orientating portions of the seat belt relative to the seat; second means for moving the seat belt away from the seat to encourage the occupant's entry onto the seat and for thereafter manipulating the seat belt about the seated occupant so that a portion of the seat belt forms a lap belt about the seated occupant and wherein other portions of the seat belt form two relatively criss-crossed shoulder belt segments of seat belt in front of the seated occupant.Type: ApplicationFiled: August 20, 2002Publication date: February 26, 2004Applicant: Breed Automotive Technology, Inc.Inventors: Raj S. Roychoudhury, Peter C. Kempf, Richard W. Koning