US Patent Issued to ZF CV Systems Global on May 26 for "Double check valve, pneumatic braking device, and vehicle" (German Inventor)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,638,090, issued on May 26, was assigned to ZF CV Systems Global GmbH (Bern, Switzerland).

"Double check valve, pneumatic braking device, and vehicle" was invented by Robert Otremba (Ronnenberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A double check valve (100) includes a sleeve (10) with a first inlet opening (11), a second inlet opening (12), an outlet opening (13), and a guide piece (20). The guide piece (20) movable along the longitudinal axis (L) within the sleeve (10), by loading with a fluid-induced pressure, between a first blocking position (S1) and a second blocking position (S2) spaced therefrom, wherein each of the inlet opening...