Elevator – industrial lift truck – or stationary lift for vehicle – Having specific load support drive-means or its control – Includes gear on support mating with stationary rack or chain
Reexamination Certificate
2007-07-03
2007-07-03
Hess, Douglas (Department: 3651)
Elevator, industrial lift truck, or stationary lift for vehicle
Having specific load support drive-means or its control
Includes gear on support mating with stationary rack or chain
Reexamination Certificate
active
11374543
ABSTRACT:
To provide a compact lifter device, which can attain a work-piece's lifting/lowering operation in a stable supporting state and can reduce the parts number and an assembly load. A lifter device100in which a pair of work-piece lifting chains130, 130respectively fed movably forward and backward by a pair of regularly/reversely rotatable driving sprockets120, 120while being sandwiched by the sprockets includes flexing suppression members140, 140disposed oppositely to each other, and each of these flexing suppression members140, 140comprises a number of blocks141disposed at mounting intervals of two times the chain pitch P on a drawing side of the work-piece lifting/lowering chain130and a lifting/lowering support bar142of a length corresponding to a chain's upright state, disposed on a feeding side continued to the drawing side of the work-piece lifting/lowering chain130,so that the flexing suppression members140, 140are engaged with each other to lift or lower a work-piece in a chain's upright state of the fed chain.
REFERENCES:
patent: 1746109 (1930-02-01), Edwards
patent: 3724644 (1973-04-01), Reimers
patent: 4180154 (1979-12-01), Andersson
patent: 4753119 (1988-06-01), Kuspert
patent: 5056278 (1991-10-01), Atsukawa
patent: 5103686 (1992-04-01), Rosenquist
patent: 5558181 (1996-09-01), Bundo
patent: 5951239 (1999-09-01), Averill et al.
patent: 6279732 (2001-08-01), Thompson
patent: 6820369 (2004-11-01), Fenelon
patent: 6840368 (2005-01-01), Betti et al.
patent: 7014360 (2006-03-01), Stenfors
patent: 7128226 (2006-10-01), Assmann
patent: 09-119495 (1997-05-01), None
patent: 09-165196 (1997-06-01), None
Inoue Shiro
Ishida Hiroki
Morimoto Takayuki
Sakura Shunji
Hess Douglas
Tsubakimoto Chain Co.
Woodling Krost & Rust
LandOfFree
Lifter device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lifter device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lifter device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3813891