Patents by Inventor David M. Kucharski
David M. Kucharski 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).
-
Patent number: 11710606Abstract: A system includes a mechanical switching device having a first moveable contact operatively connected to selectively contact a first static contact. A second moveable contact is operatively connected to selectively contact a second static contact that is electrically connected in parallel with the first static contact. The first and second moveable contacts are mechanically connected to each other to move between a closed circuit position and an open circuit position. The first moveable contact contacts the first static contact before the second moveable contact contacts the second static contact as the first and second moveable contacts move into the closed circuit position from the open circuit position. The first moveable contact disconnects from the first static contact after the second moveable contact disconnects from the second static contact as the first and second moveable contacts move from the closed circuit position into the open circuit position.Type: GrantFiled: August 11, 2021Date of Patent: July 25, 2023Assignee: Hamilton Sundstrand CorporationInventors: Francis C. Belisle, David M. Kucharski, Joshua C. Swenson
-
Patent number: 11616010Abstract: A transistor module assembly includes a longitudinally extending load bus bar, a longitudinally extending feed bus bar parallel to the load bus bar, and at least one transistor package operatively connected to the load and feed bus bars. The transistor package includes a drain surface and a source lead. The drain surface is operatively connected to the feed bus bar for receiving current therefrom. The source lead is operatively connected to the load bus bar for dissipating current from the transistor package to the load bus bar.Type: GrantFiled: June 30, 2017Date of Patent: March 28, 2023Assignee: Hamilton Sundstrand CorporationInventors: John A. Dickey, David M. Kucharski
-
Patent number: 11424642Abstract: A power distribution controller includes a solid state power controller (SSPC), a power system, and a backup power system. The SSPC is configured to selectively deliver a first power from a first power source to at least one electrical load. The power system is in signal communication with the at least one SSPC. The backup power system includes a first output in signal communication with the SSPC and a second output in signal communication with the power system.Type: GrantFiled: March 22, 2019Date of Patent: August 23, 2022Assignee: HAMILTON SUNDSTRAND CORPORATIONInventors: Kyle Stephen Ives, David M. Kucharski
-
Publication number: 20220013307Abstract: A system includes a mechanical switching device having a first moveable contact operatively connected to selectively contact a first static contact. A second moveable contact is operatively connected to selectively contact a second static contact that is electrically connected in parallel with the first static contact. The first and second moveable contacts are mechanically connected to each other to move between a closed circuit position and an open circuit position. The first moveable contact contacts the first static contact before the second moveable contact contacts the second static contact as the first and second moveable contacts move into the closed circuit position from the open circuit position. The first moveable contact disconnects from the first static contact after the second moveable contact disconnects from the second static contact as the first and second moveable contacts move from the closed circuit position into the open circuit position.Type: ApplicationFiled: August 11, 2021Publication date: January 13, 2022Applicant: Hamilton Sundstrand CorporationInventors: Francis C. Belisle, David M. Kucharski, Joshua C. Swenson
-
Patent number: 11217920Abstract: A printed circuit board (PCB)-mounted contactor including a PCB with planar surface, source and load terminals fixed to the PCB, and a contact. The contact is supported by the PCB and is movable between open and closed positions. Movement of the contact is parallel to the planar surface. Electrical assemblies having PCB-mounted contactors and methods of controlling current flow in electrical systems with PCB-mounted contactors are also described.Type: GrantFiled: June 8, 2020Date of Patent: January 4, 2022Assignee: Hamilton Sundstrand CorporationInventors: David M. Kucharski, John A. Dickey
-
Patent number: 11195671Abstract: A system includes a mechanical switching device having a first moveable contact operatively connected to selectively contact a first static contact. A second moveable contact is operatively connected to selectively contact a second static contact that is electrically connected in parallel with the first static contact. The first and second moveable contacts are mechanically connected to each other to move between a closed circuit position and an open circuit position. The first moveable contact contacts the first static contact before the second moveable contact contacts the second static contact as the first and second moveable contacts move into the closed circuit position from the open circuit position. The first moveable contact disconnects from the first static contact after the second moveable contact disconnects from the second static contact as the first and second moveable contacts move from the closed circuit position into the open circuit position.Type: GrantFiled: December 3, 2019Date of Patent: December 7, 2021Assignee: Hamilton Sundstrand CorporationInventors: Francis C. Belisle, David M. Kucharski, Joshua C. Swenson
-
Publication number: 20210166890Abstract: A system includes a mechanical switching device having a first moveable contact operatively connected to selectively contact a first static contact. A second moveable contact is operatively connected to selectively contact a second static contact that is electrically connected in parallel with the first static contact. The first and second moveable contacts are mechanically connected to each other to move between a closed circuit position and an open circuit position. The first moveable contact contacts the first static contact before the second moveable contact contacts the second static contact as the first and second moveable contacts move into the closed circuit position from the open circuit position. The first moveable contact disconnects from the first static contact after the second moveable contact disconnects from the second static contact as the first and second moveable contacts move from the closed circuit position into the open circuit position.Type: ApplicationFiled: December 3, 2019Publication date: June 3, 2021Inventors: Francis C. Belisle, David M. Kucharski, Joshua C. Swenson
-
Publication number: 20200303853Abstract: A printed circuit board (PCB)-mounted contactor including a PCB with planar surface, source and load terminals fixed to the PCB, and a contact. The contact is supported by the PCB and is movable between open and closed positions. Movement of the contact is parallel to the planar surface. Electrical assemblies having PCB-mounted contactors and methods of controlling current flow in electrical systems with PCB-mounted contactors are also described.Type: ApplicationFiled: June 8, 2020Publication date: September 24, 2020Applicant: Hamilton Sundstrand CorporationInventors: David M. Kucharski, John A. Dickey
-
Publication number: 20200303947Abstract: A power distribution controller includes a solid state power controller (SSPC), a power system, and a backup power system. The SSPC is configured to selectively deliver a first power from a first power source to at least one electrical load. The power system is in signal communication with the at least one SSPC. The backup power system includes a first output in signal communication with the SSPC and a second output in signal communication with the power system.Type: ApplicationFiled: March 22, 2019Publication date: September 24, 2020Inventors: Kyle Stephen Ives, David M. Kucharski
-
Patent number: 10714852Abstract: A printed circuit board (PCB)-mounted contactor including a PCB with planar surface, source and load terminals fixed to the PCB, and a contact. The contact is supported by the PCB and is movable between open and closed positions. Movement of the contact is parallel to the planar surface. Electrical assemblies having PCB-mounted contactors and methods of controlling current flow in electrical systems with PCB-mounted contactors are also described.Type: GrantFiled: December 14, 2017Date of Patent: July 14, 2020Assignee: Hamilton Sundstrand CorporationInventors: David M. Kucharski, John A. Dickey
-
Publication number: 20200221570Abstract: A printed wiring board (PWB) assembly includes a PWB main board defining a recess therein. An inlay is seated within the recess with a gap separating between the PWB main board and the inlay. Spacers are included within the gap to maintain gap width between the PWB main board and the inlay.Type: ApplicationFiled: January 8, 2019Publication date: July 9, 2020Inventors: Robert C. Cooney, David M. Kucharski
-
Patent number: 10431538Abstract: In accordance with another aspect, a power switch assembly includes a transistor package including a die case, a source bus tab extending from a first side of the die case, a drain bus tab extending from a second side of the die case, a first power bus rail operatively connected to the source bus tab of the transistor package and a second power bus rail operatively connected to the drain bus tab of the transistor package.Type: GrantFiled: June 30, 2017Date of Patent: October 1, 2019Assignee: Hamilton Sundstrand CorporationInventors: David M. Kucharski, John A. Dickey
-
Publication number: 20190190175Abstract: A printed circuit board (PCB)-mounted contactor including a PCB with planar surface, source and load terminals fixed to the PCB, and a contact. The contact is supported by the PCB and is movable between open and closed positions. Movement of the contact is parallel to the planar surface. Electrical assemblies having PCB-mounted contactors and methods of controlling current flow in electrical systems with PCB-mounted contactors are also described.Type: ApplicationFiled: December 14, 2017Publication date: June 20, 2019Inventors: David M. Kucharski, John A. Dickey
-
Publication number: 20190006274Abstract: A transistor module assembly includes a longitudinally extending load bus bar, a longitudinally extending feed bus bar parallel to the load bus bar, and at least one transistor package operatively connected to the load and feed bus bars. The transistor package includes a drain surface and a source lead. The drain surface is operatively connected to the feed bus bar for receiving current therefrom. The source lead is operatively connected to the load bus bar for dissipating current from the transistor package to the load bus bar.Type: ApplicationFiled: June 30, 2017Publication date: January 3, 2019Inventors: John A. Dickey, David M. Kucharski
-
Publication number: 20190006273Abstract: In accordance with another aspect, a power switch assembly includes a transistor package including a die case, a source bus tab extending from a first side of the die case, a drain bus tab extending from a second side of the die case, a first power bus rail operatively connected to the source bus tab of the transistor package and a second power bus rail operatively connected to the drain bus tab of the transistor package.Type: ApplicationFiled: June 30, 2017Publication date: January 3, 2019Inventors: David M. Kucharski, John A. Dickey