Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Operation variable for emergency – maintenance – or abnormal...
Reexamination Certificate
2005-08-15
2008-08-26
Donovan, Lincoln (Department: 2837)
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Operation variable for emergency, maintenance, or abnormal...
C187S250000, C187S252000, C187S404000, C187S411000
Reexamination Certificate
active
07416056
ABSTRACT:
The present invention relates to an elevator system for use during an emergency. The elevator system comprises two elevator shafts constructed adjacent to each other. Each elevator shaft houses an elevator car. The elevator system operates without the use of a building's power source by incorporating a primary pulley system to move the elevator cars. Generally, the elevator cars work in tandem such that as one elevator car goes up its respective elevator shaft, the other elevator car will go down its respective elevator shaft. Moreover, a secondary pulley system and a gear system are employed to also facilitate movement of the elevator cars without using the building's power supply.
REFERENCES:
patent: 473036 (1892-04-01), Veenschoten
patent: 1763198 (1930-06-01), Sprague
patent: 5152374 (1992-10-01), Pokus
patent: 5375682 (1994-12-01), Gopner
patent: 5573084 (1996-11-01), Hakala
patent: 5584364 (1996-12-01), Sakita
patent: 6854564 (2005-02-01), Reuter et al.
patent: 7097000 (2006-08-01), Teramoto et al.
patent: 7296660 (2007-11-01), Bauge
patent: 7316294 (2008-01-01), Mustalahti et al.
patent: 2004/0007428 (2004-01-01), Teramoto et al.
patent: 2005/0005809 (2005-01-01), Neale
patent: 2007/0267254 (2007-11-01), Bauge
patent: 2007/0278045 (2007-12-01), Bauge
Colon Eduardo
Donovan Lincoln
Lee Hong Degerman Kang & Schmadeka
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