Fire escape – ladder – or scaffold – Self-sustaining
Reexamination Certificate
2011-06-14
2011-06-14
Chin-Shue, Alvin C (Department: 3634)
Fire escape, ladder, or scaffold
Self-sustaining
C248S240200
Reexamination Certificate
active
07958967
ABSTRACT:
The combination of: a scaffold assembly comprising a vertical member; a baseplate on the vertical member and having a downwardly facing surface; and a foot having a top surface and a bottom surface spaced in an axial direction. The foot has an opening in the top surface and a recess extending axially from the opening toward the bottom surface. The recess accepts the baseplate with the baseplate in an operative position. The downwardly facing surface bears on the foot so as to cause a downward force produced by the vertical member to be applied to the foot and distributed by the foot through the bottom surface to an underlying support surface for the scaffold assembly. The bottom surface on the foot has a peripheral edge that bounds an area that is greater than an area bounded by a peripheral edge of the baseplate.
REFERENCES:
patent: 483841 (1892-10-01), goodnow
patent: 1554327 (1925-09-01), Boberg
patent: 2185948 (1940-01-01), Pimm
patent: 2284847 (1942-06-01), Raymond
patent: 2534682 (1950-12-01), Robishaw
patent: 2584015 (1952-01-01), Hawes
patent: 3011749 (1961-12-01), Kozak
patent: 3190405 (1965-06-01), Squire
patent: 3233319 (1966-02-01), Jensen et al.
patent: 3257765 (1966-06-01), Anderson et al.
patent: 3331333 (1967-07-01), Coulson
patent: 3442480 (1969-05-01), Marvin et al.
patent: 3470663 (1969-10-01), Tate
patent: 3656269 (1972-04-01), Witschel et al.
patent: 3860209 (1975-01-01), Strecker
patent: 4048776 (1977-09-01), Sato
patent: 4078633 (1978-03-01), Fahy
patent: 4216933 (1980-08-01), Cramer
patent: 4245438 (1981-01-01), van Buren, Jr.
patent: 4254927 (1981-03-01), Stonhaus
patent: 4283899 (1981-08-01), Wakamiya
patent: 4346540 (1982-08-01), Anderson
patent: 4400856 (1983-08-01), Tseng
patent: 4457650 (1984-07-01), Tseng
patent: 4527760 (1985-07-01), Salacuse
patent: D284164 (1986-06-01), Tseng
patent: 4599768 (1986-07-01), Doyle et al.
patent: 4645392 (1987-02-01), Takaguchi
patent: 4698875 (1987-10-01), Kreeger
patent: 4708531 (1987-11-01), Plenter
patent: 4817402 (1989-04-01), Leiding
patent: 4919230 (1990-04-01), Langer et al.
patent: 4958875 (1990-09-01), Zamzow
patent: 5035398 (1991-07-01), Chiang
patent: 5199916 (1993-04-01), Prickett
patent: 5290195 (1994-03-01), Prickett
patent: 5297407 (1994-03-01), Tarr
patent: 5395086 (1995-03-01), Goldstein
patent: 5507199 (1996-04-01), Lampani
patent: 5526598 (1996-06-01), Watanabe
patent: 5607251 (1997-03-01), Rafn
patent: 5626435 (1997-05-01), Wohlhuter
patent: D386140 (1997-11-01), Pingel et al.
patent: D386141 (1997-11-01), Pingel et al.
patent: 5685642 (1997-11-01), Gaskell
patent: 5913605 (1999-06-01), Jusselin et al.
patent: 5920969 (1999-07-01), Vuorinen
patent: 6092342 (2000-07-01), Sharapata
patent: 6135687 (2000-10-01), Leek et al.
patent: 6276879 (2001-08-01), Hecht
patent: 6318947 (2001-11-01), Hahn et al.
patent: 6336620 (2002-01-01), Belli
patent: 6382488 (2002-05-01), Hancock
patent: 6422795 (2002-07-01), Holt et al.
patent: 6490766 (2002-12-01), Tiemann
patent: 6606823 (2003-08-01), McDonough et al.
patent: 6666635 (2003-12-01), Holt et al.
patent: 6669163 (2003-12-01), Davis, Jr.
patent: 6874745 (2005-04-01), Bean
patent: 6929223 (2005-08-01), Hancock et al.
patent: 6988700 (2006-01-01), Cote
patent: 7025385 (2006-04-01), Drescher
patent: 7032712 (2006-04-01), Schworer
patent: 7066366 (2006-06-01), Hancock et al.
patent: 7100808 (2006-09-01), Hancock et al.
patent: 2006/0060422 (2006-03-01), VanDerHyden
patent: 2007/0006691 (2007-01-01), Leek et al.
Bradford Candace L
Chin-Shue Alvin C
Wood Phillips Katz Clark & Mortimer
LandOfFree
Mud sill does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mud sill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mud sill will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2742049