MUMBAI, India, Aug. 31 -- Intellectual Property India has published a patent application (202521023736 A) filed by Vishwakarma Institute Of Technology on March 17, 2025, for A Manual Plastic Bottle Shredder Device.

Inventors include Itnal, Vijay K.; Patil, Suvarna V.; Bagul, Deven; Barde, Anup; Barlingay, Anvita; Bagal, Nisha; Bamane, Shraddha; and Barahate, Diya.

The application for the patent was published on August 28, 2026, under issue no. 35/2026.

Abstract: The present invention is related to a manual plastic bottle shredder device, this is a cost-effective solution for recycling plastic waste into usable 3D printing filament. The device comprises a supporting frame configured to hold the plastic bottle in position and a cutting mechanism consisting of fixed blades connected to the supporting frame, wherein the blades are configured to cut the cylindrical portion of the plastic bottle into strips. The plastic bottle, wherein the top and bottom portions are removed leaving only the cylindrical part, is inserted into the cutting mechanism. A manual pulling arrangement is configured to extract the strips from the blades, wherein weight is applied on the top of the bottle and the strips are pulled manually. The fixed blades are configured to maintain an even diameter of the strips, and the device enables preparation of filaments at low cost for sustainable recycling and local household use.

Disclaimer: Curated by HT Syndication.