ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,767, issued on July 15, was assigned to WEST PHARMA. SERVICES IL ltd. (Ra'anana, Israel).
"Partial door closure prevention spring" was invented by Lior Barchen (Gani Tal, Israel) and Yossi Bar-El (Beit Arye, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for visually indicating that a door of a drug delivery device is open is described. A closing force to move the door is received. Then, it is detected that the door is not closed. A biasing element pushes the door to a perceptibly open position with an opening force when the door reaches the last 30 degrees of rotation of toward closure or when the door reaches the last 30% of range ...