ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,535,114, issued on Jan. 27, was assigned to RPC Bramlage GmbH (Lohne, Germany).
"Plastic spring" was invented by Sabine Goettke (Lohne, Germany) and Martin Presche (Dinklage, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A plastic spring includes a lower spring ring and an upper spring ring, which are arranged essentially coaxially to one another, wherein a plane, which is in each case spanned by the spring rings, extends essentially perpendicular to a longitudinal axis of the plastic spring, and wherein, in addition, the spring rings are connected to one another compressibly by spring legs, which extend over more than 90 degrees in the circumf...