Vapor Corp.

Samir M Elguindy

Kristupas Daugirdas

Kristupas Daugiras

A door operator including a unique electrical drive motor and a linkage arrangement having a drive bar applying driving action through a roller to a slide bar multiplying level wherein the multiplying lever is pivotally mounted at one end and slidably engaging a roller near the other end which is mounted on a slidable door.

Linear output force door operator

A pneumatic powered door operator including a pneumatic differential engine with an output shaft having a slide bar applying driving action through a roller to a multiplying lever wherein the multiplying lever is pivotally mounted at one end and provided with a roller at the other end and linkage means for interconnecting the multiplying lever to a slidable door. An electropneumatic control circuit controls the operation of the engine and includes a pneumatic spring arrangement which allows manual operation of the door during electrical failure with air available while being capable of maintaining the door in a closed position when not manually actuated.

Modulated output force door operator

Door operator for doors on a passenger carrying vehicle such as a bus or the like for moving a door between open and closed positions and having a locking mechanism with a lost motion action for unlocking the doors prior to the door opening cycle.

Growing community of inventors

Mount Prospect, IL, United States of America

Samir M Elguindy