Patents for August 2025
USPTO Fastener Patents Compiled from: United States Patent and Trademark Office (USPTO)
Tool Assembly for Tensioning Tower Bolts of a Wind Turbine Tower
Patent: US 12350773
Published: July 8, 2025
Inventor: Rasmus Sanderhoff Johansen (Hørning, Denmark)
Assignee: Vestas Wind Systems A/S (Aarhus N, Denmark)
Summary: A tool assembly for tensioning tower bolts of a wind turbine. Includes a rotatable tool holding part and a magnetic connecting arrangement for attachment to the tower wall.
Clamp Bolt and Associated Assembly
Patent: US 12352305
Published: July 8, 2025
Inventor: Jared Kitchen (West Yorkshire, Great Britain)
Assignee: Pilgrim International Ltd. (Oldham, Great Britain)
Summary: Clamp bolt with two nuts and two washers, each nut screwed onto an end of the bolt with washers positioned between them.
Screw Drive
Patent: US 12338849
Published: June 24, 2025
Inventor: Gerhard Hubmann (Graz, Austria)
Assignee: AVVIO GmbH & CO KG (Graz, Austria)
Summary: Screw head bush with a tapered external portion and an internal engagement geometry for rotationally fixed screw head accommodation.
Blind Rivet Fastening Apparatus
Patent: US 12330208
Published: June 17, 2025
Inventor: Daisuke Mori (Toyohashi, Japan)
Assignee: NEWFREY LLC (New Britain, CT, USA)
Summary: Blind rivet device with a dual-function clutch that disengages at the rear end and slips at the home position. Includes spindle and nut clutches with complementary segment portions.
Two-Piece Blind Fastener and Installation Tool
Patent: US 12330248
Published: June 17, 2025
Inventors: Cristinel Cobzaru (Murrieta, CA), Brian Hoffarth (Santa Ana, CA), Claude Couillandeau (France)
Assignee: SPS Technologies, LLC (Jenkintown, PA, USA)
Summary: Blind fastener with bolt and nut featuring frangible portions and tool engagement sections for installation and disassembly.
Charged Particle Gun, Charged Particle Beam System and Lock Nut
Patent: US 12334298
Published: June 17, 2025
Inventor: Teruaki Hasegawa (Tokyo, Japan)
Assignee: Hitachi High-Tech Corporation (Tokyo, Japan)
Summary: Lock nut with inclination adjustment and locking features for securing a charged particle source. Includes screw and non-screw thread sections and a slit-based adjustment mechanism.
Coupling Bolt of a Plug-In Coupling and Related Components
Patent: US 12331774
Published: June 17, 2025
Inventors: Heinrich Heinrichs, Vlotho, Germany; and Waldemar Wedel, Bielefeld, Germany
Assignee: Böllhoff Verbindungstechnik GmbH, Bielefeld, Germany
A coupling bolt includes a connecting portion with which the extending from the connecting portion and defining a longitudinal has a pre-fixation portion and a fastening portion, and along the longitudinal axis in the direction of the connecting portion the prefixed portion with a first diameter, a subsequent first, tapering transition portion and a first locking portion with a second diameter which is smaller than the first diameter. Along the longitudinal axis in the direction of the connecting portion, the fastening portion includes a second transition portion adjacent to the first locking portion, a subsequent second head portion with a third diameter that is larger than the first diameter, a third tapering transition portion and a second locking portion.
Screw Member Tightening and Loosening Apparatus and Screw Member Tightening and Loosening Method
Patent: US 12318876
Published: June 3, 2025
Inventors: Hirohisa Morimoto and Hiroki Omoto (Tokyo, Japan)
Assignee: Daifuku Co., Ltd. (Osaka, Japan)
Summary: This invention describes a control unit that performs a sequence of operations for tightening and loosening a screw member. The first control aligns the fitted part of the screw with the fitting part of a rotating body. The second control presses the fitting part against the fitted part. The third control rotates the rotating body in a first direction by a predetermined angle while maintaining pressure. The fourth control then rotates the body in the opposite direction by a smaller angle, also while maintaining pressure. This sequence ensures precise and controlled screw manipulation.
Connector Nut
Patent: US 12322895
Published: June 3, 2025
Inventor: David G. Pineault (Tiverton, RI, USA)
Assignee: The United States of America as represented by the Secretary of the Navy
Summary: A split connector nut designed for coupling a cable connector. It consists of two semi-arcuate half-bodies, each with mating surfaces and a concave inner surface with screw threads. One mating surface includes a fastener and an alignment aperture, while the other includes an alignment pin and a receiving aperture. Each half-body also features an inwardly disposed retaining shoulder that engages a retaining groove on the cable connector, ensuring secure attachment.
Screw Load Testing Device and Method for Performing a Load Test on a Screw
Patent: US 12313486
Published: May 27, 2025
Inventors: Gerald Neumann (Hückeswagen, Germany) and Christoph Bodensteiner (Wermelskirchen, Germany)
Assignee: Kistler Holding AG (Winterthur, Switzerland)
Summary: This invention relates to a device for testing the load on a screw. The device includes a housing that supports the screw and a mating element formed as a threaded nut. The housing contains a measuring device to detect axial force and/or torque on the screw. A first housing member interacts with a portion connected to the screw, while a second housing member interacts with the threaded nut. These two housing members are movable relative to each other along the screw’s longitudinal axis, enabling precise load testing.