Archer‘s patented method involves aligning and coupling two shafts using a sleeve and fasteners, allowing for independent alignment and transmission of various loads. The innovative design ensures efficient load transmission without relying on threaded portions, enhancing overall performance and reliability. GlobalData’s report on Archer gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Archer, was a key innovation area identified from patents. Archer's grant share as of February 2024 was 53%. Grant share is based on the ratio of number of grants to total number of patents.

Self-adjusting sleeve for aligning and transmitting loading between shafts

Source: United States Patent and Trademark Office (USPTO). Credit: Archer Ltd

A recently granted patent (Publication Number: US11920637B2) discloses a method involving the alignment of two shafts, a first shaft, and a second shaft, in an end-to-end arrangement. The method includes coupling the shafts via a stem connector assembly and shear components, allowing independent alignment while transmitting various types of loading. The coupling is achieved by positioning a sleeve over the shafts and fastening it with shear components that partially recess into the shafts, ensuring the loading is not transmitted through the threaded portions of the fasteners. The alignment is facilitated by creating clearance spaces between the sleeve and the shafts and allowing the sleeve to self-adjust within these spaces.

Furthermore, the patent details a method where a sleeve with radial holes is used to align and couple the first and second shafts. The sleeve is fastened to the shafts using shear components extending through the radial holes, allowing for self-adjustment of alignment while transmitting different types of loading. Retaining mechanisms are employed to secure the fasteners within the shafts, ensuring that the loading is not transmitted through them. The method also involves creating clearance spaces between the sleeve and the shafts, facilitating the self-adjustment of alignment. The patent highlights the application of this method in scenarios where the first shaft functions as a valve stem and the second shaft as an operator stem, showcasing its versatility and potential in various industrial applications.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData’s Patent Analytics tracks patent filings and grants from official offices around the world. 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.