Static structures (e.g. – buildings) – Openwork; e.g. – truss – trellis – grille – screen – frame – or... – Three-dimensional space-defining
Reexamination Certificate
2011-07-05
2011-07-05
Lillis, Eileen (Department: 3635)
Static structures (e.g., buildings)
Openwork; e.g., truss, trellis, grille, screen, frame, or...
Three-dimensional space-defining
C052S143000, C052S185000, C052S651010
Reexamination Certificate
active
07971408
ABSTRACT:
A transportable and erectable stairtower having a removable/slidable wheel carriage and a removable installation section arranged for transporting and erecting the stairtower. The stairtower has vertical column members and lateral members defining levels of the stairtower. Removable staircases extend between alternate levels of lateral members. A platform landing is formed at the intersection of first and second stair segments of the staircase. Removable ramps may be connected to the stairtower above, below, and at a position corresponding to the platform landings. A safety device in the form of catch pans, gutters, and leaders may be provided to protect workers by collecting debris and rainwater. A transporting vehicle may be connected to the installation section to transport the stairtower to a desired location. A lifting vehicle may be used to lift the stairtower from a horizontal to a vertical orientation.
REFERENCES:
patent: 2438173 (1948-03-01), Johnson et al.
patent: 2485165 (1949-10-01), Pollman
patent: 3221837 (1965-12-01), Fisher
patent: 3228154 (1966-01-01), Mulitz
patent: 3305046 (1967-02-01), Schar
patent: 3454131 (1969-07-01), Johnson et al.
patent: 3565212 (1971-02-01), Johnson
patent: 3697098 (1972-10-01), Fisher
patent: 3768016 (1973-10-01), Townsend et al.
patent: 3788018 (1974-01-01), Simmons et al.
patent: 3859771 (1975-01-01), Simmons et al.
patent: 3901532 (1975-08-01), Hornagold
patent: 4084777 (1978-04-01), Lambert
patent: 4253549 (1981-03-01), Petren
patent: 4397373 (1983-08-01), Ream et al.
patent: 4621972 (1986-11-01), Grotte
patent: 4707957 (1987-11-01), Sheppherd
patent: 4759162 (1988-07-01), Wyse
patent: 4773506 (1988-09-01), Preston
patent: 4825192 (1989-04-01), Wells
patent: 4858726 (1989-08-01), Preston
patent: 4930273 (1990-06-01), Papesch
patent: 4967875 (1990-11-01), Beeche
patent: 5127492 (1992-07-01), Preston
patent: 5156235 (1992-10-01), Preston
patent: 5335468 (1994-08-01), Oberman et al.
patent: 5491939 (1996-02-01), Wang
patent: 5617931 (1997-04-01), Zygmun et al.
patent: 6257272 (2001-07-01), Keiser
patent: 6415891 (2002-07-01), Hayman et al.
patent: 6464196 (2002-10-01), Crookham et al.
patent: 6539571 (2003-04-01), Forsyth
patent: 6648102 (2003-11-01), Bostelman et al.
patent: 2003/0150187 (2003-08-01), Forsyth et al.
patent: 2003/0178253 (2003-09-01), Tatge et al.
patent: 0 713 942 (1996-05-01), None
patent: 368436 (1932-03-01), None
patent: 7-197618 (1995-08-01), None
patent: 10-037309 (1998-02-01), None
patent: 2002-38718 (2002-02-01), None
patent: 10-2006-0133289 (2006-12-01), None
patent: WO 00/37753 (2000-06-01), None
Occupational Safety and Health Administration, A Guide to Scaffold Use in the Constructions Industry, Small Business Safety Management Series, OSHA 3150 2002 (Revised).
Construction Equipment, Market Watch Lite, Oct. 2006, p. 100.
Bacon & Thomas PLLC
Lillis Eileen
Painter Branon C
LandOfFree
Stairtower and method for erecting the same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stairtower and method for erecting the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stairtower and method for erecting the same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2741441