MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202647123517 A) filed by Tpr Co. , Ltd. on October 15, 2026, for Compression Ring, Compression Ring Combination, And Ring Body.
Inventors include Hatta, Satoshi; Sato, Keisuke; and Umeda, Naoki.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: This compression ring has: a ring body for being fitted into a ring groove formed in a piston, the ring body having formed in the inner circumferential surface thereof an inner circumferential groove that is recessed toward the radially outer circumferential side; and a coil expander that is disposed to the radially inner circumferential side of the ring body...