Patents by Inventor Donald J. Caldwell
Donald J. Caldwell 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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Publication number: 20240243419Abstract: Example terminals on a battery cover and example battery covers are described herein. The example terminals provide a more secure connection between a terminal and a connector. Additionally, the example terminals may be shaped such that only specific batteries or battery types can be used with certain vehicles or connectors. The example battery covers may include terminal covers and handles that are integrated into the design of the cover such that a top surface of the cover is planar.Type: ApplicationFiled: May 20, 2022Publication date: July 18, 2024Inventors: Jason D. Fuhr, Arunraj Varatharajah, Rengaraj Balakrishnan, Tyler Anthony Thiel, Jason David Searl, Roderique Duell, Kathryn Marie Ciurlik, Donald J. Caldwell
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Publication number: 20230268597Abstract: A housing for an electrical power storage device is described herein. The housing includes a compartment having a base, a first wall extending from the base, and a second wall extending from the base. The housing also includes a first apron portion and a second apron portion to be used as part of a hold-down assembly for holding down the housing. The first apron portion and the second apron portion are positioned on the first wall and the second wall, respectively, between 15% and 85% of a height of the first wail and second wall from the base to a top of the first wall and the second wall.Type: ApplicationFiled: August 9, 2021Publication date: August 24, 2023Inventors: Tyler Thiel, Arunraj Varatharajah, Rengaraj Balakrishnan, Donald J. Caldwell, Jason D. Fuhr, Roderique Duell
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Publication number: 20230207990Abstract: Disclosed is a lead acid battery including a housing having an exterior. The battery also includes a lead terminal extending through the housing to the exterior of the housing. A coating covers the lead terminal such that there is no exposed lead exterior to the housing.Type: ApplicationFiled: March 3, 2023Publication date: June 29, 2023Inventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Patent number: 11637352Abstract: Disclosed is a lead acid battery including a housing having an exterior. The battery also includes a lead terminal extending through the housing to the exterior of the housing. A coating covers the lead terminal such that there is no exposed lead exterior to the housing.Type: GrantFiled: April 20, 2021Date of Patent: April 25, 2023Assignees: CPS Technology Holdings LLC, Clarios Germany GmbH & Co. KGInventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Patent number: 11605864Abstract: Disclosed is a battery having a conductive terminal extending beyond a surface of a battery cover, the conductive terminal having an internal portion and an external surface, wherein the internal portion comprises lead and external surface comprises a non-lead conductive material. Further disclosed is a method for producing such a battery.Type: GrantFiled: September 23, 2020Date of Patent: March 14, 2023Assignees: Clarios Germany GmbH & Co. KG, CPS Technology Holdings LLCInventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Publication number: 20210242547Abstract: Disclosed is a lead acid battery including a housing having an exterior. The battery also includes a lead terminal extending through the housing to the exterior of the housing. A coating covers the lead terminal such that there is no exposed lead exterior to the housing.Type: ApplicationFiled: April 20, 2021Publication date: August 5, 2021Inventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Publication number: 20210005870Abstract: Disclosed is a battery having a conductive terminal extending beyond a surface of a battery cover, the conductive terminal having an internal portion and an external surface, wherein the internal portion comprises lead and external surface comprises a non-lead conductive material. Further disclosed is a method for producing such a battery.Type: ApplicationFiled: September 23, 2020Publication date: January 7, 2021Inventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Patent number: 10811667Abstract: Disclosed is a battery having a conductive terminal extending beyond a surface of a battery cover, the conductive terminal having an internal portion and an external surface, wherein the internal portion comprises lead and external surface comprises a non-lead conductive material. Further disclosed is a method for producing such a battery.Type: GrantFiled: March 5, 2019Date of Patent: October 20, 2020Assignees: Clarios Germany GmbH & Co. KGAA, CPS Technology Holdings LLCInventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Publication number: 20190273241Abstract: Disclosed is a battery having a conductive terminal extending beyond a surface of a battery cover, the conductive terminal having an internal portion and an external surface, wherein the internal portion comprises lead and external surface comprises a non-lead conductive material. Further disclosed is a method for producing such a battery.Type: ApplicationFiled: March 5, 2019Publication date: September 5, 2019Inventors: Michael J. Koop, Donald J. Caldwell, Jason D. Fuhr, Jeffrey L. Troxel
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Patent number: 5898108Abstract: An evaporative emission tester is used to evaluate the integrity of a vehicle's evaporative emission control system, including determining the system's purge capability. The emission tester performs a purge flow test to determine whether fuel vapor stored in the vehicle's evaporative canister and present in the fuel tank is being drawn into the engine for combustion at a minimum amount. The emission tester also performs a pressure test of the vehicle's evaporative canister purge system, which includes the fuel tank and lines. The emission tester can function as a stand-alone unit or as an integrated product with a host computer.Type: GrantFiled: November 21, 1997Date of Patent: April 27, 1999Assignee: Snap-on Technologies, Inc.Inventors: Daniel Mieczkowski, Mark J. Hasenberg, Thomas P. Becker, Matthew M. Crass, Robert D. Braun, Edward T. Gisske, Donald J. Caldwell
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Patent number: 5763764Abstract: An evaporative emission tester is used to evaluate the integrity of a vehicle's evaporative emission control system, including determining the system's purge capability. The emission tester performs a purge flow test to determine whether fuel vapor stored in the vehicle's evaporative canister and present in the fuel tank is being drawn into the engine for combustion at a minimum amount. The emission tester also performs a pressure test of the vehicle's evaporative canister purge system, which includes the fuel tank and lines. The emission tester can function as a stand-alone unit or as an integrated product with a host computer.Type: GrantFiled: November 22, 1995Date of Patent: June 9, 1998Assignee: Snap-on Technologies, Inc.Inventors: Daniel Mieczkowski, Mark J. Hasenberg, Thomas P. Becker, Matthew M. Crass, Robert D. Braun, Edward T. Gisske, Donald J. Caldwell
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Patent number: 4994890Abstract: The rectifier structure comprises a plurality of diodes including opposed first and second terminals. A plate electrically connects the first terminals to one another. A retainer locates the diodes on the plate. A plurality of individual links including an outer end portion, an inner end portion, and a fuse portion therebetween are located on the retainer such that the outer end portion of each link is in contact with the second terminal of a respective diode. A washer is in contact with the inner end portion of each link for electrically connecting the second terminals to one another. The links provide fuses for disconnecting the diodes from the washer when excessive current flows through a diode.Type: GrantFiled: November 27, 1989Date of Patent: February 19, 1991Assignee: Snap-on Tools CorporationInventor: Donald J. Caldwell
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Patent number: 4845792Abstract: An approach ramp for an automotive support platform includes first and second ramp members, the trailing end of the first ramp member being pivotally connected to the leading end of the platform. The second ramp member is both slidably and pivotally movable with respect to the first ramp member. Each ramp member carriers rollers at its leading end for engagement with the floor when the platform is lowered to an access position. In one configuration the ramp members are disposed in overlapping parallel relationship to define a single ramp incline. In a second configuration the second ramp member is extended from the first and is inclined with respect thereto to form a dual-slope ramp incline.Type: GrantFiled: April 27, 1988Date of Patent: July 11, 1989Assignee: Snap-on Tools CorporationInventors: Gerald R. Bakula, Donald J. Caldwell, Andrzej J. Dlugolecki
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Patent number: 4777852Abstract: The ratcheting screwdriver comprises a handle having a bore and a keyway substantially tangent thereto. In the bore is a gear and in the keyway are a pair of pawls which are movable individually into and out of engagement with the gear. An actuator is provided at the forward end of the handle to move these pawls. A cap operates the actuator.Type: GrantFiled: October 2, 1986Date of Patent: October 18, 1988Assignee: Snap-on Tools CorporationInventors: Timm R. Herman, Donald J. Caldwell, Allan J. Bliemeister, Eric T. Gustafson, Mark S. Bakula
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Patent number: D307236Type: GrantFiled: July 11, 1986Date of Patent: April 17, 1990Assignee: Snap-on Tools CorporationInventors: Steven S. Cascio, Donald J. Caldwell, Tom S. Severson, Steven R. Wente, Mark S. Bakula
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Patent number: D309246Type: GrantFiled: December 24, 1986Date of Patent: July 17, 1990Assignee: Snap-on Tools CorporationInventors: Steven S. Cascio, Donald J. Caldwell, Tom S. Severson, Steven R. Wente, Mark S. Bakula