Movable or removable closures – Operator interrelated with closure latch release – Common actuator – different movements to unlatch and move...
Reexamination Certificate
2006-09-19
2006-09-19
Redman, Jerry (Department: 3634)
Movable or removable closures
Operator interrelated with closure latch release
Common actuator, different movements to unlatch and move...
C049S280000, C049S300000
Reexamination Certificate
active
07107721
ABSTRACT:
The door apparatus has a linear motor for applying a thrust to move a door, a lock device for performing a locking operation and an unlocking operation, and a control unit for controlling the linear motor and the lock device. Upon determining that the lock device is still in a locked state after a set time has elapsed from initiation of the unlocking operation, the control unit controls the linear motor to apply a thrust force to the door while again controlling the lock device to perform the unlocking operation. As a result, even when the locking pin and the lock hole are misaligned to such an extent as to interfere with the unlocking operation, the unlocking operation can be performed without an increase in a thrust output by a solenoid of the lock device, the solenoid can be prevented from overheating and the size and weight of the solenoid can be reduced.
REFERENCES:
patent: 1976223 (1934-10-01), Hedley et al.
patent: 4882876 (1989-11-01), Daugirdas
patent: 4901474 (1990-02-01), Bayard et al.
patent: 5640807 (1997-06-01), Shigematsu et al.
patent: 5755060 (1998-05-01), Zweili
patent: 5927015 (1999-07-01), Ghosn et al.
patent: 6588829 (2003-07-01), Long et al.
patent: 6739646 (2004-05-01), Suzuki et al.
patent: 2003/0106457 (2003-06-01), Inage
patent: 10-193977 (1998-07-01), None
“Development of linea motor driving system for commuter train”, Yoshihiko Sato, Member, Keizi Kouzu (JR East), Hiroshi Harie, Member, Akio Inage (Fuji Electric).
“Development of Linear Motor Driving System for Commuter Train”, Yoshihiko Sato et al, Proceedings of the 1999 Japan Industry Application Society Conference, vol. 1, pp. 359-362. (English translation of pp. 360-361 attached).
Fuji Electric & Co., Ltd.
Rabin & Berdo PC
Redman Jerry
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