MUMBAI, India, Oct. 5 -- Intellectual Property India has published a patent application (202641116085 A) filed by Aditya University; Aditya College Of Pharmacy A; and Aditya Degree College on September 28, 2026, for A Taper-Actuated Adjustable Mandrel Tool For Forming Torsion Springs And Method Thereof.
Inventors include Karri Siva Prasanna; Dr. D. V. N. Koteswara Rao; Sadhe Amala; and Mohammed Shaidden.
The application for the patent was published on October 02, 2026, under issue no. 40/2026.
Abstract: The present disclosure proposes a taper-actuated adjustable mandrel tool (100) configured to form torsion springs of different diameters, thereby improving spring- forming repeatability, enhancing operational efficiency, and reducing dependence on multiple fixed-diameter mandrels. The taper-actuated adjustable mandrel tool (100) comprises a first assembly (102A) having a first connecting bar (106A), plurality of first flexible members (108A), a first tapered member (112A), and a first holding member (116A), and a second assembly (102B) having a second connecting bar (106B), plurality of second flexible members (108B), a second tapered member (112B), and a second holding member (116B). The taper-actuated adjustable mandrel tool (100) enables stable positioning and controlled guiding of a spring wire (10) during coiling, thereby reducing wire slippage and improving consistency of spring geometry.
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