Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1985-06-05
1987-03-17
Shoop, Jr., William M.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
187121, 187135, B66B 300
Patent
active
046500375
ABSTRACT:
Methods and apparatus for selectively controlling the energization of a plurality of lamps in an elevator system, utilizing a microcomputer based lamp controller, and for detecting failure of the lamps while utilizing a minimum number of communication lines. A first communication line synchronizes signals which are placed on the remaining communication lines. Signals indicating the need for lamp energization are detected by the lamp controller. When such signals are recognized by the lamp controller, the lamp controller prepares and places signals on a second communication line which requests lamp energization of the associated lamps, and it stores indications of the requests. Signals responsive to the detection of actual energization of a lamp are placed on a third communication line and directed to the lamp controller. The lamp controller logically relates signals detected on the third communication line with the stored indications of lamp energization requests to determine or test system integrity, and to detect lamp burn-out.
REFERENCES:
patent: 3706972 (1972-12-01), Okuhara
patent: 3706983 (1972-12-01), Olson et al.
patent: 4173750 (1979-11-01), Riba
patent: 4217576 (1980-08-01), Wreford-Howard
patent: 4234878 (1980-11-01), Stark
patent: 4295079 (1981-10-01), Otsuka et al.
patent: 4307392 (1981-12-01), Loshbough et al.
patent: 4323841 (1982-04-01), Jacobsen
patent: 4354181 (1982-10-01), Spletzer
patent: 4555689 (1985-11-01), Brick et al.
Husson Alan L.
Morris Kim E.
Blum Richard K.
Lackey D. R.
Shoop Jr. William M.
Westinghouse Electric Corp.
LandOfFree
Elevator system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Elevator system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elevator system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1782901