MUMBAI, India, Aug. 10 -- Intellectual Property India has published a patent application (202641091280 A) filed by Easwari Engineering College; and Srm Institute Of Science And Technology Ramapuram Campus on July 27, 2026, for Snake Vertebrae Articulating Rack And Pinion Mechanism With Multi-Degree-Of-Freedom Flexible Power Transmission.
Inventors include Mr. Sanjay Moorthy M; Mr. R. Jeremiah; Mr. Prasannaganesh. V; and Dr. R. Tharmaraj.
The application for the patent was published on July 31, 2026, under issue no. 31/2026.
Abstract: A flexible rack-and-pinion mechanism comprises vertebral rack segments, each having an involute toothed face with eight teeth of module m = 2 mm, a convex ball- joint head of radius 11 mm protruding 9 mm at one end, and a concave socket recess of radius 11.15 mm and depth 13 mm at the other. Adjacent segments connect with 0.15 mm radial clearance, permitting up to 15° yaw and 10° pitch articulation while maintaining mesh with a traversing pinion. Guide rails engage lateral grooves to define a planar, helical or curved transmission path. Selectively actuatable locking mechanisms: a friction collar, shape-memory-alloy ring or pneumatic bladder — rigidise individual joints. The segments are machined from EN24 steel or Ti-6Al-4V to ISO 1328-1 Grade 6. Applications include robotics, surgical instruments and pipeline inspection. Total Number of Words in Abstract:130
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