Fire escape – ladder – or scaffold – Platform with elevating or lowering means – Suspended
Reexamination Certificate
2005-12-05
2010-06-01
Mitchell, Katherine W (Department: 3634)
Fire escape, ladder, or scaffold
Platform with elevating or lowering means
Suspended
C182S141000, C182S150000, C122S510000
Reexamination Certificate
active
07726447
ABSTRACT:
A scaffold assembling of a large component for a boiler requiring inspection is not performed by a high-place work but assembled safely and in a short time. The scaffold is assembled to the large component for the boiler supported by a component supporting beam at the ground side before it is attached to a steel frame main-beam16. Scaffold lifting/supporting beams interposing coil spaces of a superheater14are suspended on wires36lifted down from spaces of a ceiling tube wall34being a horizontal member of the superheater14. The scaffold lifting/supporting beams32are lifted to raise little by lithe within the superheater, and scaffold components are assembled sequentially toward downward. After a required number of steps of scaffolds are assembled, the scaffold lifting/supporting beams32are coupled to the ceiling tube wall34to be supported. Finally, the superheater14is raised by a lifting means to install to the main-beam.
REFERENCES:
patent: 1725183 (1929-08-01), Fischer
patent: 3168163 (1965-02-01), Prosser
patent: 3420332 (1969-01-01), Textor
patent: 3853204 (1974-12-01), Smith
patent: 3866382 (1975-02-01), Van Tassel
patent: 3900080 (1975-08-01), Rea
patent: 4058184 (1977-11-01), Stuart et al.
patent: 4068738 (1978-01-01), Reed
patent: 4234055 (1980-11-01), Beeche
patent: 4253548 (1981-03-01), Beeche
patent: 4253549 (1981-03-01), Petren
patent: 4276956 (1981-07-01), Mamula et al.
patent: 4388982 (1983-06-01), Yonahara
patent: 4474143 (1984-10-01), Wincze
patent: 4474497 (1984-10-01), Sullivan
patent: 4815563 (1989-03-01), Puccinelli et al.
patent: 4967875 (1990-11-01), Beeche
patent: 4971169 (1990-11-01), Fruth
patent: 5007501 (1991-04-01), Baston
patent: 5301770 (1994-04-01), Regan et al.
patent: 5343978 (1994-09-01), VanAmburg
patent: 5579866 (1996-12-01), Rowell
patent: 6264001 (2001-07-01), Herschbach
patent: 6286691 (2001-09-01), Oberhaus et al.
patent: A 59-044504 (1984-03-01), None
patent: A-62-022904 (1987-01-01), None
patent: A-09-032121 (1997-02-01), None
patent: A-2001-173901 (2001-06-01), None
patent: A-2004-250944 (2004-09-01), None
Kawaguchi Shigeyoshi
Nakamitsu Kazuhito
Sagawa Sinnichi
Hitachi Plant Technologies, Ltd.
Mitchell Katherine W
Oliff & Berridg,e PLC
Quinn Colleen M
LandOfFree
Inspection scaffold of large component for boiler and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Inspection scaffold of large component for boiler and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inspection scaffold of large component for boiler and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4242157