Patents by Inventor KILLALATHU RAMANATHAN BABU

KILLALATHU RAMANATHAN BABU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Landing lever assembly of a pneumatic vacuum elevator and method to operate the same
    Patent number: 11807494
    Abstract: A landing lever assembly of a pneumatic vacuum elevator is disclosed. The assembly includes a landing lever plate coupled on a roof of an elevator cabin. The assembly also includes a locking plate coupled to the landing lever plate using a plurality of support plates. The assembly further includes a solenoid valve disposed on the landing lever plate and mechanically coupled to the locking plate using a guide pin, where the guide pin is configured to actuate the locking plate by sliding within the solenoid valve, in at least one operational mode, based on an activation signal received from a magnetic sensor.
    Type: Grant
    Filed: September 11, 2020
    Date of Patent: November 7, 2023
    Inventor: Killalathu Ramanathan Babu
  • LANDING LEVER ASSEMBLY OF A PNEUMATIC VACUUM ELEVATOR AND METHOD TO OPERATE THE SAME
    Publication number: 20230137945
    Abstract: A landing lever assembly of a pneumatic vacuum elevator is disclosed. The assembly includes a landing lever plate coupled on a roof of an elevator cabin. The assembly also includes a locking plate coupled to the landing lever plate using a plurality of support plates. The assembly further includes a solenoid valve disposed on the landing lever plate and mechanically coupled to the locking plate using a guide pin, where the guide pin is configured to actuate the locking plate by sliding within the solenoid valve, in at least one operational mode, based on an activation signal received from a magnetic sensor.
    Type: Application
    Filed: September 11, 2020
    Publication date: May 4, 2023
    Inventor: KILLALATHU RAMANATHAN BABU