Daido Steel has been granted a patent for a threaded joint comprising two tubular components. The joint features trapezoidal threaded zones with varying and constant widths, designed for enhanced engagement. It includes specific dimensions for axial gaps and ensures secure contact between the male and female components. GlobalData’s report on Daido Steel gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Daido Steel, Hydrogen fuel cells was a key innovation area identified from patents. Daido Steel's grant share as of July 2024 was 37%. Grant share is based on the ratio of number of grants to total number of patents.
Threaded joint with varying width trapezoidal threads
The patent US12066130B2 describes a threaded joint designed for use in tubular components, specifically for applications such as casing or liner in oil and gas drilling. The joint consists of a first tubular component with a male end and a second tubular component with a female end. Both ends feature threaded zones that include varying and non-varying sections, with the varying zones designed to interlock. The thread profile is trapezoidal, incorporating features such as load and stab flanks, roots, and crests. The design allows for precise axial gaps between the male and female threads, which are specified to be between 0.002 mm to 1 mm, ensuring a secure fit.
Additionally, the patent outlines specific characteristics of the threaded zones, including the presence of imperfect height thread profiles in a percentage of the threads, and the use of a metal-to-metal seal for enhanced sealing capabilities. The joint is engineered to maintain a radial clearance after make-up, and the design includes tapered threaded zones with a taper range of 4% to 15%. The method of make-up for the joint is also detailed, emphasizing the importance of the pin external shoulder abutting the female end's abutment surface before achieving a zero thread axial gap. This innovative design aims to improve the reliability and performance of threaded joints in high-stress applications.
To know more about GlobalData’s detailed insights on Daido Steel, buy the report here.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
