ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,467,445, issued on Nov. 11, was assigned to ProMinent GmbH (Heidelberg, Germany).
"Self-locking membrane system" was invented by Jochen Kinna (Sandhausen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A membrane system comprising a membrane and connecting elements for connecting the membrane to a membrane pump for conveying a fluid, which membrane pump has a drive shaft designed for an oscillating translatory movement perpendicular to the plane of the membrane during operation of the membrane pump and has an external thread at an end portion for engagement with the membrane system by screwing. To ensure a secure and torque-proof connection betw...