ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,480,517, issued on Nov. 25, was assigned to Pittway Sarl (Rolle, Switzerland).
"Sealing assembly for a shaft passage opening for a fan" was invented by Kay Jarysek (Rolle, Switzerland), Martin Petersmann (Rolle, Switzerland), Gerrit Wascher (Rolle, Switzerland) and Martin Koelker (Rolle, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure describes a sealing assembly (100) for sealing a shaft (150) passage opening (141) comprising: a rotatable motor shaft (150) with at least one bearing (161) which is supported by at least one bearing support (170), a motor plate (140) with a passage opening (141) for the motor shaft (150) ...