Patents by Inventor Derek Changsrivong
Derek Changsrivong 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: 11536373Abstract: Spring energized seal assemblies each with one or two sealing elements and a canted coil spring located in a spring cavity of the sealing element or of the two sealing elements to bias an inner flange and an outer flange of the respective spring cavity away from one another. The canted coil springs can have un-conventional coil shapes with one or more straight coil segments and/or with curved connecting ends. The coils can have dimples to provide multiple biasing points. The coils can have loops. The canted coil springs with un-conventional coil shapes can be used to improve spring loading on a sealing element.Type: GrantFiled: March 7, 2017Date of Patent: December 27, 2022Assignee: Bal Seal Engineering, LLCInventors: Lluis Soler, Derek Changsrivong, Peter J Balsells, Stephen Rust, Mike Foster, Tony Quach
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Publication number: 20220181833Abstract: A method of making a connector assembly includes attaching two stamped housing sections together to form a connector housing having a housing groove with a groove bottom and two side walls and providing the connector housings with a spring used as a mechanical connector and/or as an electrical connector for numerous applications and across numerous industries. The groove geometries can easily be altered using different stamping dies.Type: ApplicationFiled: February 24, 2022Publication date: June 9, 2022Applicant: Bal Seal Engineering, LLCInventors: Farshid Dilmaghanian, Peter J. Balsells, Majid Ghasiri, Derek Changsrivong
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Patent number: 11296475Abstract: A method of making a connector assembly includes attaching two stamped housing sections together to form a connector housing having a housing groove with a groove bottom and two side walls and providing the connector housings with a spring used as a mechanical connector and/or as an electrical connector for numerous applications and across numerous industries. The groove geometries can easily be altered using different stamping dies.Type: GrantFiled: June 11, 2019Date of Patent: April 5, 2022Assignee: Bal Seal Engineering, LLCInventors: Farshid Dilmaghanian, Peter J. Balsells, Majid Ghasiri, Derek Changsrivong
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Patent number: 11050190Abstract: Connector assemblies having a housing, a pin, and a spring length having two free ends are used as a mechanical connector to secure two objects or components together or an electrical connector for placing two sources in electrical communication with one another. The spring length can be a canted coil spring in which the two free ends are not connected to one another and the coils can have an elliptical shape or a complex coil shape. The spring length can be used with a retaining component, can be used in a recessed slot formed with the housing or the pin, or both with a retaining component and with a recessed slot.Type: GrantFiled: June 2, 2017Date of Patent: June 29, 2021Assignee: Bal Seal Engineering, LLCInventors: Derek Changsrivong, Tony Quach
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Patent number: 10535945Abstract: Connector assemblies formed by attaching two stamped housing sections to form a connector housing having a housing groove with a groove bottom and two side walls are disclosed. Using stamped housing sections can reduce manufacturing costs and simplifies assembly, among other things. The connector housings with a canted coil spring can be used as a mechanical connector and/or as an electrical connector for numerous applications and across numerous industries. The canted coil springs can have complex shapes, with optional dimples.Type: GrantFiled: October 4, 2016Date of Patent: January 14, 2020Assignee: Bal Seal Engineering, Inc.Inventors: Farshid Dilmaghanian, Peter J. Balsells, Majid Ghasiri, Lluis Soler, Derek Changsrivong
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Patent number: 10520092Abstract: Seal assembly designs for extreme temperatures that include material and structural designs to counteract sealing component shrinkage or expansion caused by thermal expansion or contraction. Provisions can be included to increase sealing stress along the outer seal lip of the seal assembly for low temperature applications where shrinkage can be an issue and to increase sealing stress along the inner seal lip of the seal assembly for high temperature applications where expansion can be an issue.Type: GrantFiled: October 24, 2017Date of Patent: December 31, 2019Assignee: Bal Seal Engineering, Inc.Inventors: Farshid Dilmaghanian, Marc Soriano, Peter J. Balsells, Shirley Zhou, Majid Ghasiri, Derek Changsrivong, Raul Magana
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Patent number: 10447000Abstract: A connector assembly having a housing and a shaft; at least a groove in the housing or on the shaft; one of the housing and the shaft has a first component and a second component; there being at least a first groove configuration and a second groove configuration resulting from two different relative positions of the first and second components; the first and second groove configurations resulting in a first insertion force and a first removal force of the shaft into and from the housing and a second insertion force and a second removal force of the shaft into and from the housing, respectively.Type: GrantFiled: December 12, 2017Date of Patent: October 15, 2019Assignee: Bal Seal Engineering, Inc.Inventors: Jeff Frederick, Derek Changsrivong, Pere Pla-Junca, Peter J. Balsells, Richard Dawson
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Publication number: 20190296511Abstract: A method of making a connector assembly includes attaching two stamped housing sections together to form a connector housing having a housing groove with a groove bottom and two side walls and providing the connector housings with a spring used as a mechanical connector and/or as an electrical connector for numerous applications and across numerous industries. The groove geometries can easily be altered using different stamping dies.Type: ApplicationFiled: June 11, 2019Publication date: September 26, 2019Applicant: Bal Seal Engineering, Inc.Inventors: Farshid Dilmaghanian, Peter J. Balsells, Majid Ghasiri, Derek Changsrivong
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Patent number: 10361528Abstract: A method of making a connector assembly includes attaching two stamped housing sections together to form a connector housing having a housing groove with a groove bottom and two side walls and providing the connector housings with a spring used as a mechanical connector and/or as an electrical connector for numerous applications and across numerous industries. The groove geometries can easily be altered using different stamping dies.Type: GrantFiled: January 7, 2016Date of Patent: July 23, 2019Assignee: Bal Seal Engineering, Inc.Inventors: Farshid Dilmaghanian, Peter J. Balsells, Majid Ghasiri, Derek Changsrivong
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Publication number: 20180115133Abstract: A connector assembly having a housing and a shaft; at least a groove in the housing or on the shaft; one of the housing and the shaft has a first component and a second component; there being at least a first groove configuration and a second groove configuration resulting from two different relative positions of the first and second components; the first and second groove configurations resulting in a first insertion force and a first removal force of the shaft into and from the housing and a second insertion force and a second removal force of the shaft into and from the housing, respectively.Type: ApplicationFiled: December 12, 2017Publication date: April 26, 2018Applicant: Bal Seal Engineering, Inc.Inventors: Jeff Frederick, Derek Changsrivong, Pere Pla-Junca, Peter J. Balsells, Richard Dawson
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Publication number: 20180112778Abstract: Seal assembly designs for extreme temperatures that include material and structural designs to counteract sealing component shrinkage or expansion caused by thermal expansion or contraction. Provisions can be included to increase sealing stress along the outer seal lip of the seal assembly for low temperature applications where shrinkage can be an issue and to increase sealing stress along the inner seal lip of the seal assembly for high temperature applications where expansion can be an issue.Type: ApplicationFiled: October 24, 2017Publication date: April 26, 2018Applicant: Bal Seal Engineering, Inc.Inventors: Farshid Dilmaghanian, Marc Soriano, Peter J. Balsells, Shirley Zhou, Majid Ghasiri, Derek Changsrivong, Raul Magana
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Patent number: 9882332Abstract: A connector assembly having a housing and a shaft; at least a groove in the housing or on the shaft; one of the housing and the shaft has a first component and a second component; there being at least a first groove configuration and a second groove configuration resulting from two different relative positions of the first and second components; the first and second groove configurations resulting in a first insertion force and a first removal force of the shaft into and from the housing and a second insertion force and a second removal force of the shaft into and from the housing, respectively.Type: GrantFiled: December 2, 2013Date of Patent: January 30, 2018Assignee: Bal Seal Engineering, Inc.Inventors: Jeff Frederick, Derek Changsrivong, Pere Pla-Junca, Peter J. Balsells, Richard Dawson
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Publication number: 20170352984Abstract: Connector assemblies having a housing, a pin, and a spring length having two free ends are used as a mechanical connector to secure two objects or components together or an electrical connector for placing two sources in electrical communication with one another. The spring length can be a canted coil spring in which the two free ends are not connected to one another and the coils can have an elliptical shape or a complex coil shape. The spring length can be used with a retaining component, can be used in a recessed slot formed with the housing or the pin, or both with a retaining component and with a recessed slot.Type: ApplicationFiled: June 2, 2017Publication date: December 7, 2017Inventors: Derek Changsrivong, Tony Quach
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Patent number: 9829028Abstract: The present application relates to connectors that use canted coil springs to retain a pin to a housing. The connectors have increased disconnect to connect force ratios. Dual concentric spring configuration allows for an initial locking configuration that can be overcome with higher force and deflection of the second spring. Dual springs in series in a constrained groove can require a high force for connector disconnect, since force vectors may be in a direction relatively close to being along the spring major axis. A curved groove wall can offer resistance to a spring that is required to slide first into the groove in order to allow disconnect.Type: GrantFiled: November 14, 2013Date of Patent: November 28, 2017Assignee: Bal Seal Engineering, Inc.Inventors: Derek Changsrivong, Rick Dawson, Jim Sittler
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Publication number: 20170261108Abstract: Spring energized seal assemblies each with one or two sealing elements and a canted coil spring located in a spring cavity of the sealing element or of the two sealing elements to bias an inner flange and an outer flange of the respective spring cavity away from one another. The canted coil springs can have un-conventional coil shapes with one or more straight coil segments and/or with curved connecting ends. The coils can have dimples to provide multiple biasing points. The coils can have loops. The canted coil springs with un-conventional coil shapes can be used to improve spring loading on a sealing element.Type: ApplicationFiled: March 7, 2017Publication date: September 14, 2017Inventors: Lluis Soler, Derek Changsrivong, Peter J. Balsells, Stephen Rust, Mike foster, Tony Quach
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Patent number: 9677587Abstract: Dual directional latch devices or connectors are described wherein a first connector component and a second connector component have a first latched position and a second latched position when moving in a first direction and wherein movement in a second direction is also possible depending on a stop feature. As described, a combination key and key way, a movable sleeve, a stop flange, and a threaded sleeve may be provided to stop movement in the second direction. The dual direction latch devices may be used with articles of manufacture such as with implantable medical devices, door panels, airplane panels, and drilling devices, to name a few.Type: GrantFiled: December 4, 2012Date of Patent: June 13, 2017Assignee: Bal Seal Engineering, Inc.Inventors: Derek Changsrivong, Bill Nissim, Rafael Godinez, Pere Pla-Junca, Hugh Cook
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Patent number: 9500211Abstract: A progressive release or multi-point engagement device according to aspect of the present disclosure includes a first component and a second component connected to the first component with a canted coil spring. The first component is movable relative to the second component and latch by moving the canted coil spring to a second common groove. Alternatively, a second spring is used to move the second component and relative to a third component. When a second engagement position is desired, a relatively higher a force may be necessary to move the relevant component.Type: GrantFiled: January 7, 2014Date of Patent: November 22, 2016Assignee: Bal Seal Engineering, Inc.Inventor: Derek Changsrivong
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Patent number: 9482255Abstract: Dual directional latch devices or connectors are described wherein a first connector component and a second connector component have a first latched position and a second latched position when moving in a first direction and wherein movement in a second direction is also possible when a restriction feature is overcome. As described, opposing magnetic forces, pneumatic pressure, spring force, and a crushable force may be incorporated so that further movement in the second direction must overcome the restriction feature. The dual direction latch devices may be used with articles of manufacture such as with implantable medical devices, door panels, airplane panels, and drilling devices to name a few.Type: GrantFiled: December 4, 2012Date of Patent: November 1, 2016Assignee: Bal Seal Engineering, Inc.Inventors: Derek Changsrivong, Rob Sjostedt, Hugh Cook, Rick Dawson
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Publication number: 20160118759Abstract: A method of making a connector assembly includes attaching two stamped housing sections together to form a connector housing having a housing groove with a groove bottom and two side walls and providing the connector housings with a spring used as a mechanical connector and/or as an electrical connector for numerous applications and across numerous industries. The groove geometries can easily be altered using different stamping dies.Type: ApplicationFiled: January 7, 2016Publication date: April 28, 2016Inventors: Farshid Dilmaghanian, Peter J. Balsells, Majid Ghasiri, Derek Changsrivong
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Patent number: 9285034Abstract: The present cartridge seal assemblies pertain to rotary lip-type seals. In certain embodiments, a sealing member is constructed of a relatively hard material that increases the lifespan of the sealing member. The sealing member is energized with a canted-coil spring, which in some embodiments includes an adjustable spring force. The present embodiments enable control of sealing force to achieve an appropriate sealing force between the sealing member and the shaft based on factors such as temperature, pressure, rotary speed, properties of fluid media, etc. to achieve longer seal life.Type: GrantFiled: April 1, 2014Date of Patent: March 15, 2016Assignee: Bal Seal Engineering, Inc.Inventors: Pete Balsells, Farshid Dilmaghanian, Derek Changsrivong