1
Bodo Grabner: Apparatus for opening and closing a car door and a shaft door of an elevator installation. Inventio, MacMillan Sobanski & Todd, February 8, 2000: US06021871 (15 worldwide citation)

An apparatus for opening and closing a car door and a shaft door of an elevator installation includes an entraining system (E) arranged at the car door and a cooperating locking mechanism (L). The entraining system (E) has a pair of spreadable entraining cams (1, 2) connected to first and second lev ...


2
Frank Mollenauer, Bodo Grabner: Support for lift door drive. Inventio, liu xiaofeng, August 18, 1999: CN97196747

These carriers for the reception of all important components of a door drive can be used in different door systems with different entrance widths. For this purpose the carrier (10) consists of a base part (11) and a length adapter (12), which are connectible together in such a manner that carriers ( ...