Patents Assigned to Klein Tools, Inc.
  • Publication number: 20260126475
    Abstract: A circuit test device includes a housing. The circuit test device includes a circuit disposed in the housing and including an electromagnetic field (EMF) sensor and a signal detector coupled to the EMF sensor. The circuit test devices includes a conductor disposed on the housing and an interface extending through the housing and coupling the conductor to a circuit under test (CUT). The EMF sensor is configured to generate a signal in the presence of a time varying flow of current from the CUT in the conductor, and provide the signal to the signal detector.
    Type: Application
    Filed: December 29, 2025
    Publication date: May 7, 2026
    Applicant: Klein Tools, Inc.
    Inventors: Bruce R. Kuhn, Christian Castro
  • Patent number: 12613094
    Abstract: A laser level includes a housing having a laser emitter to emit a laser along a plane. The laser level includes a mounting base connected to the housing. The housing is pivotable relative to the mounting base about three axes by a user grasping the housing and moving the housing. The housing includes a first micro-adjustment knob to adjust the housing, relative to the mounting base, about a fourth axis. The housing includes a second micro-adjustment knob to adjust the housing, relative to the mounting base, about a fifth axis perpendicular to the fourth axis.
    Type: Grant
    Filed: September 22, 2023
    Date of Patent: April 28, 2026
    Assignee: Klein Tools, Inc.
    Inventor: Catalin Virgil Captarencu
  • Publication number: 20260109007
    Abstract: A nut driving tool capable of mounting multiple sockets on a shank, including at least one socket in a use position on a socket mounting end of the shank and another socket in a storage position, with the socket in the storage position movable from the storage position past as socket mounting end of the shank.
    Type: Application
    Filed: August 30, 2025
    Publication date: April 23, 2026
    Applicant: Klein Tools, Inc.
    Inventors: Stephen Powers, Jordan L. Fisher, Kevin Basler
  • Patent number: 12571821
    Abstract: A circuit test device includes a housing. The circuit test device includes a circuit disposed in the housing and including an electromagnetic field (EMF) sensor and a signal detector coupled to the EMF sensor. The circuit test devices includes a conductor disposed on the housing and an interface extending through the housing and coupling the conductor to a circuit under test (CUT). The EMF sensor is configured to generate a signal in the presence of a time varying flow of current from the CUT in the conductor, and provide the signal to the signal detector.
    Type: Grant
    Filed: June 3, 2024
    Date of Patent: March 10, 2026
    Assignee: Klein Tools, Inc.
    Inventors: Bruce′ R. Kuhn, Christian A. Castro
  • Patent number: 12564921
    Abstract: A tool includes a reversable first socket having a pair of opposed first socket ends and a first engagement portion therebetween, and a reversable second socket having a pair of second opposed socket ends and a second engagement portion therebetween. The tool includes an elongated first adapter having a driven end, a first drive end opposite the driven end, and an extending length therebetween. The tool includes an elongated second adapter having a receiving end opposite a second drive end. The receiving end includes a first interior portion, a second interior portion connected to the first interior portion, and a third interior portion connected to the second interior portion. In a first configuration, the first drive end is engaged to the first engagement portion. In a second configuration, the second drive end is engaged to the second engagement portion.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: March 3, 2026
    Assignee: Klein Tools, Inc.
    Inventors: Kurt Owen, Jonathan Gimondo
  • Patent number: 12540807
    Abstract: A combination square is provided with a square head that includes a pair of bores extending through a blade receiving slot, a pair of pins, each pin having an eccentric outermost surface and being engaged in a corresponding one of the bores, and a ruled blade that is releasably engaged in the slot such that the relative angle between the head and the blade can be adjusted by rotating one or both of the pins about the axis of the corresponding bore.
    Type: Grant
    Filed: February 1, 2023
    Date of Patent: February 3, 2026
    Assignee: Klein Tools, Inc.
    Inventor: Catalin Virgil Captarencu
  • Publication number: 20260018830
    Abstract: An electrical connector is provided for electrically connecting a pair of conductors and includes: a housing made of an electrical insulating material, the housing having a pair of conductor insertion openings; a busbar component mounted in the housing between the insertion openings; a pair of cantilevered contact arms, each arm positioned on a side of the busbar opposite from the other contact arm to clamp a conductor against the busbar; and a pair of actuating member, each of the actuating members mounted on opposite sides of the busbar to actuate a corresponding one of the contact arms from an initial position to an inserting position as the actuating member is moved from a closed position to an open position.
    Type: Application
    Filed: June 17, 2025
    Publication date: January 15, 2026
    Applicant: Klein Tools, Inc.
    Inventors: James E. Murphy, Brian Frank, James Schroeder, Danial Wolniak
  • Publication number: 20250387887
    Abstract: A nut driver includes an elongate drive shank and a reversible socket. The socket has a first hex socket opening sized to engage a hexagonal profile of a first size, and a second hex socket opening sized to engage a hexagonal profile of a second size that is larger than the first size. The socket is mountable on the drive shank in either a first orientation that presents the first hex socket opening for use, or a second orientation that presents the second hex socket opening for use. Sockets can be stored on the shank.
    Type: Application
    Filed: August 21, 2025
    Publication date: December 25, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Austin Minor, Jordan L. Fisher, Michael D. Bronk
  • Publication number: 20250353146
    Abstract: A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.
    Type: Application
    Filed: July 29, 2025
    Publication date: November 20, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Jonathan Low, Peter Roberts, Juan Caro
  • Patent number: 12461152
    Abstract: An arc fault circuit interrupt (AFCI) tester device includes a housing and a circuit assembly disposed within the housing. The circuit assembly includes a first load switching circuit for creating a pulse pattern having a plurality of pulses. The circuit assembly includes a second load switching circuit for creating an overlay signal superimposed upon at least one pulse of the plurality of pulses. The AFCI tester device includes an interface receiving the plurality of pulses and the overlay signal. The interface extends outside of the housing and is adapted for electrically coupling the circuit assembly to the AFCI device under test (DUT). The interface is adapted to transmit the pulse pattern and the overlay signal to the AFCI DUT.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 4, 2025
    Assignee: Klein Tools, Inc.
    Inventors: Bruce R. Kuhn, Christian A. Castro
  • Patent number: 12447590
    Abstract: A driver include: an axis, a shank with a handle engagement portion, and a handle configured to releasably and continuously adjustably fix the shank in position. The handle includes a sleeve with two slots axially oriented, first and second handle portions, a torsion spring between the handle portions, and two retaining balls riding in the two slots and disposed in the first handle portion and biased apart. With the first handle portion in a rotationally neutral position, the retaining balls are pressed against the shank, fixing the shank in position. Rotating the first handle portion with respect to the second handle portion releases the retaining balls and allows the shank to be adjusted in the handle.
    Type: Grant
    Filed: April 10, 2023
    Date of Patent: October 21, 2025
    Assignee: Klein Tools, Inc.
    Inventor: Jerry C. Knauth
  • Publication number: 20250303528
    Abstract: A reconfigurable tool for turning components with different configurations has: a) a base with a body having a turning axis, axially spaced first and second ends, and a wall extending around the turning axis; and b) a first tool part having spaced ends and a first engaging part at one of the spaced ends that is configured to be operatively positioned with respect to a component with a first configuration. The base body and first tool part are configured so that the base body and first tool part can be: a) placed in a first starting relationship with the first tool part in radially spaced and axially overlapping relationship with the base body; and b) moved towards each other transversely to the turning axis from the first starting relationship into a first connected relationship, whereupon movement of the base body around the turning axis causes the first tool part to turn the component relative to which the first engaging portion is operatively positioned.
    Type: Application
    Filed: April 2, 2024
    Publication date: October 2, 2025
    Applicant: Klein Tools, Inc.
    Inventors: James E. Murphy, Gregory Andi, Jonathan Low, Tye Parker
  • Publication number: 20250296765
    Abstract: A modular storage box includes a compartment for holding a wire reel, a lid pivotable between an open position and a closed position, and a latch to maintain the lid in the closed position.
    Type: Application
    Filed: June 9, 2025
    Publication date: September 25, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Daniel Pearson, Daniel Flores, Robert Rivera
  • Publication number: 20250296206
    Abstract: A multi-nut driver is includes a handle having an opening and a hollow interior. A reversible adapter is removably received in the opening of the handle. The reversible adapter includes a first retention portion at a first end and a second retention portion at a second end opposite the first end. The multi-nut driver includes a first elongated shank removably retained by the first retention portion, and a second elongated shank removably retained by the second retention portion. The multi-nut driver includes a socket removably mounted to the first elongated shank. The first elongated shank protrudes from the reversible adapter and into the hollow interior of the handle.
    Type: Application
    Filed: March 19, 2024
    Publication date: September 25, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Alexander Turner, Austin Minor, Chris Mangini
  • Patent number: 12415257
    Abstract: A nut driver includes an elongate drive shank and a reversible socket. The socket has a first hex socket opening sized to engage a hexagonal profile of a first size, and a second hex socket opening sized to engage a hexagonal profile of a second size that is larger than the first size. The socket is mountable on the drive shank in either a first orientation that presents the first hex socket opening for use, or a second orientation that presents the second hex socket opening for use. Additionally, in the first orientation, the socket is mountable in either a screw head receiving position or a drive bit receiving position.
    Type: Grant
    Filed: February 18, 2022
    Date of Patent: September 16, 2025
    Assignee: Klein Tools, Inc.
    Inventors: Austin Minor, Jordan L. Fisher, Michael D. Bronk
  • Publication number: 20250269439
    Abstract: A hole saw system includes a first hole saw, a second hole saw, and an arbor. The first hole saw is capable of being nested within the second hole saw. Each of the hole saws includes a mount wall having a first engagement feature configured to receive a first drive feature and a second engagement feature configured to receive a second drive feature that is different from the first drive feature. The arbor includes the first drive feature and the second drive feature and is configured to selectively mount each of the hole saws in a single saw arrangement and to selectively mount both of the hole saws in a nested saw arrangement. In the single saw arrangement, the arbor mounts a single one of the hole saws with the first drive feature engaged in the first engagement feature and the second drive feature not engaged with the second engagement feature.
    Type: Application
    Filed: February 28, 2025
    Publication date: August 28, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Juan Sebastian Caro, Jonathan Low, James E. Murphy, Grace A. Conway, Kingston Wong
  • Publication number: 20250269498
    Abstract: A pipe wrench includes the quick adjust knob, a handle, a first jaw carried on the handle, and a hook-shaped movable member mounted on the handle to translate relative to the handle and the first jaw. The quick adjust knob includes a housing, a pair of floating threads, and a pair of actuating buttons configured to actuate the floating threads out of engagement with mating threads on the moveable member to allow the movable member to be quickly adjusted relative to the handle.
    Type: Application
    Filed: February 27, 2025
    Publication date: August 28, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Soo In Ma, James E. Murphy, Eric S. Cheung
  • Publication number: 20250262727
    Abstract: A reversible, multiple-bit, hand tool for driving threaded fasteners and nuts includes a handle and a reversible tool holder assembly. The reversible tool holder assembly is insertable into the handle in either of two orientations to present two different ends provide multiple different configurations for driving different types of threaded fasteners and nuts. The reversible tool holder assembly includes a reversible adapter barrel, a first tool holder, a second tool holder, a first reversible bit holder, and a second reversible bit holder. Each of the tool holders can be selectively used as a nut driver with the holder assembly inserted in either orientation in the handle or can be removed from the adapter barrel and used separately as a power bit driver or a power nut driver (PND) that is received in any conventional chuck of a powered rotary tool.
    Type: Application
    Filed: February 25, 2025
    Publication date: August 21, 2025
    Applicant: Klein Tools, Inc.
    Inventor: Christopher Mangini
  • Patent number: 12370654
    Abstract: A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.
    Type: Grant
    Filed: June 30, 2023
    Date of Patent: July 29, 2025
    Assignee: Klein Tools, Inc.
    Inventors: Jonathan Low, Peter Roberts, Juan Caro
  • Publication number: 20250204629
    Abstract: A safety helmet includes an outer shell having a front receptacle disposed on a front side of the outer shell and a rear receptacle disposed on a rear side of the outer shell. A first accessory device having a first mating receptacle formed thereon is releasably mountable onto each of the front receptacle or the rear receptacle of the outer shell, and a second accessory device having a second mating receptacle formed thereon is releasably mountable onto each of the front receptacle or the rear receptacle of the outer shell.
    Type: Application
    Filed: March 10, 2025
    Publication date: June 26, 2025
    Applicant: Klein Tools, Inc.
    Inventors: Shantanu Deshpande, Kingston Wong