Braking system for a linear motor driven elevator

Details Braking system for a linear motor driven elevator Braking system for a linear motor driven elevator

1990-02-26

1991-07-23

Bollinger, David H.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187 73, 187108, B66B 132

Patent

active

050335871

ABSTRACT:
A linear motor driven elevator system comprises: a car connected to a counterweight by a rope; a linear motor comprised of a primary conductor and secondary conductor, one of which is a moving element and the other being a stator, the moving element being mounted in the car or the counterweight; and a device for stopping the car comprising, a power source connected to the primary conductor, the power source being continuously fed to the primary conductor to move the car and not being fed to the primary conductor to stop the car, and a braking device mounted on the car, the braking device being disengaged when power is fed to the primary conductor and engaged when power to the primary conductor is interrupted.

REFERENCES:
patent: 684390 (1901-10-01), Venn
patent: 826558 (1906-07-01), Furlow
patent: 3613835 (1971-10-01), Vizzotto
patent: 3768597 (1973-10-01), Darwent et al.
patent: 4570753 (1986-02-01), Ohta et al.

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