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公开(公告)号：ZA73276B
公开(公告)日：1973-10-31
申请号：ZA73276
申请日：1973-01-15
Applicant: VAPOR CORP
Inventor： REDDY R
Abstract: A door operator for driving a track guided door through opening and closing cycles, including a rotating shaft and drive member movable therealong in response to rotation wherein the drive member is resiliently coupled to a door. A locking mechanism is provided for locking the door in closed position and an emergency device enables opening of the door when power is not available.
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