Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Casters – Sliding
Reexamination Certificate
2007-06-12
2007-06-12
Sandy, Robert J. (Department: 3677)
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Casters
Sliding
C016S019000
Reexamination Certificate
active
11090359
ABSTRACT:
A fluid levitating caster lifts a heavy load “(17)” off a floor “(18)” with near friction-less-ness for transport has integrated a load lifting device. This extra rise height “(ER)” lifting feature accommodates moving loads “(17)” which have flexible-sagging frames, over uneven floors “(18)”, and which have frames that are not parallel to floor “(18)”. An inflatable bellows “(22)” design of the load lifting device receives its pressurization from fluid levitating caster, and additionally serves as a dampening reservoir to reduce hopping-pressure surges inherent in fluid levitating casters.
REFERENCES:
patent: 2134444 (1938-10-01), Harsh
patent: 3096991 (1963-07-01), Crankshaw
patent: 3225380 (1965-12-01), Faul
patent: 3390736 (1968-07-01), Thomas
patent: 3756342 (1973-09-01), Burdick
patent: 3829116 (1974-08-01), Burdick
patent: 5967666 (1999-10-01), Johnson
patent: 6533121 (2003-03-01), Ross
patent: 6585069 (2003-07-01), Smith
patent: 6695084 (2004-02-01), Wilk
patent: 2003/0028997 (2003-02-01), Plate
patent: 2004/0111830 (2004-06-01), Cooper et al.
patent: 3519479 (1986-12-01), None
Hentzel Paul
Jackson André L.
Sandy Robert J.
LandOfFree
Fluid levitating caster integrating load lifting 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 Fluid levitating caster integrating load lifting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid levitating caster integrating load lifting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3824945