Conveyors: power-driven – Conveyor or accessory therefor specialized to convey people – By stairway having steps forming an endless member
Reexamination Certificate
2011-04-05
2011-04-05
Bidwell, James R (Department: 3651)
Conveyors: power-driven
Conveyor or accessory therefor specialized to convey people
By stairway having steps forming an endless member
C198S323000
Reexamination Certificate
active
07918325
ABSTRACT:
A moving staircase (escalator) with two flights of steps (1, 1′), a first flight for resetting one foot and a second flight for resting the other foot, equipped with synchronized reciprocating motion so that when the first flight goes up the second one goes down by the pace corresponding to a step, the user, by alternating the resting foot onto the steps of the two flights, will make no effort in waiting along it and he/she will not have to bend the limbs. The elevator finds its elective application as emergency escalator, also as fire-fighting staircase and as moving staircase for users prevented from an ease moving of limbs. The escalator can also-conveniently be rested onto pre-exiting flights.
REFERENCES:
patent: 25706 (1859-08-01), Ames
patent: 2664990 (1954-01-01), Georgiev et al.
patent: 2794531 (1957-06-01), Stelzer
patent: 3913723 (1975-10-01), Johnson
patent: 4438830 (1984-03-01), Born
patent: 5107975 (1992-04-01), Iwata
patent: 5193650 (1993-03-01), Kent, Jr.
patent: 6342768 (2002-01-01), van der Heiden
patent: 6435308 (2002-08-01), Grass
patent: 6527098 (2003-03-01), Krampl
patent: 7131522 (2006-11-01), Sircovich
patent: 11482 (1902-07-01), None
patent: 781245 (1957-08-01), None
patent: WO/2007/107086 (2007-09-01), None
patent: WO/2007/137499 (2007-12-01), None
International Search Report for PCT/IB2008/053930 filed on Sep. 26, 2008 in the name of Luigi Cozzuto.
Written Opinion for PCT/IB2008/053930 filed on Sep. 26, 2008 in the name of Luigi Cozzuto.
International Preliminary Report on Patentability on PCT/IB2008/053930 filed on Sep. 26, 2008 in the name of Luigi Cozzuto.
Bidwell James R
Steinfl & Bruno LLP
LandOfFree
Moving staircase with a double step flight does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Moving staircase with a double step flight, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moving staircase with a double step flight will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2741880