Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Patent
1989-10-16
1990-08-21
Valenza, Joseph E.
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
198778, 198845, B66B 2102
Patent
active
049498320
ABSTRACT:
The escalator has steps with vertical planar cleated risers which mesh with cleated trailing edges of the adjacent step. The step chains are selectively kinked and unkinked to provide for a constant spacing of adjacent step axles throughout the path of travel of the escalator. The steps thus display a constant horizontal velocity. The escalator can be adapted to follow a fixed center constant radius in plan helical path of travel.
REFERENCES:
patent: 617778 (1899-01-01), Seeberger
patent: 617779 (1899-01-01), Seeberger
patent: 685019 (1901-10-01), Venn
patent: 723325 (1903-03-01), Souder
patent: 727720 (1903-05-01), Venn
patent: 782009 (1905-02-01), Dodge
patent: 967710 (1910-08-01), Bennett
patent: 984495 (1911-02-01), Seeberger
patent: 984858 (1911-02-01), Seeberger
patent: 999885 (1911-08-01), Seeberger
patent: 1023443 (1912-04-01), Seeberger
patent: 2695094 (1954-11-01), Riley
patent: 2823785 (1958-02-01), Hefti
patent: 3395648 (1968-08-01), Karr et al.
patent: 3878931 (1975-04-01), Luna
patent: 4411352 (1983-10-01), Kettle
patent: 4434884 (1984-03-01), Kettle
patent: 4662502 (1987-05-01), Nakatami
patent: 4681206 (1987-07-01), Sugita
patent: 4726460 (1988-02-01), Otomo
patent: 4730717 (1988-03-01), Sugita
patent: 4739870 (1988-04-01), Saito
patent: 4746000 (1988-05-01), Nakatami et al.
patent: 4775043 (1988-10-01), Tomidokoro
patent: 4883160 (1989-11-01), Sanseruo et al.
patent: 4895239 (1990-01-01), Johnson et al.
Dayoan D. Glenn
Jones William W.
Otis Elevator Company
Valenza Joseph E.
LandOfFree
Curved escalator with vertical planar step risers and constant h does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Curved escalator with vertical planar step risers and constant h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Curved escalator with vertical planar step risers and constant h will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1671001