MUMBAI, India, Aug. 31 -- Intellectual Property India has published a patent application (202541016350 A) filed by Cummins Inc. on February 25, 2025, for Def Pressure Sensors Including Freeze-Protective Seals.
Inventors include Lukas Kaufmann; Julian Nicolas Aljoscha Raupp; Subash Krishna Selvakumar; Sandesh Mathpati; and Pallavi Balpande.
The application for the patent was published on August 28, 2026, under issue no. 35/2026.
Abstract: A pressure sensor for a diesel exhaust dosing system includes a pressure sensor cell, a central support tube, and an elastomeric membrane surrounding at least a portion of the central support tube. The he elastomeric membrane includes a core portion surrounding and supported by the central support tube and extending intermediate a first membrane end and a second membrane end, a first annular protrusion extending outward from the core portion at a location proximate the first membrane end, a second annular protrusion extending outward from the core portion at a location proximate the second membrane end, and a plurality of ribs positioned intermediate the first annular protrusion and the second annular protrusion and extending outward from the core portion, and a plurality of air-filled expansion volumes disposed intermediate the plurality of ribs. Fig. 13
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