Stowable spiral staircase system for overhead space access

Details Stowable spiral staircase system for overhead space access Stowable spiral staircase system for overhead space access

2008-05-27

2008-05-27

Chilcot, Jr., Richard E. (Department: 3633)

Static structures (e.g., buildings)

Stepped; e.g., stair

Helical type

C052S182000, C052S183000, C052S184000, C052S191000, C052S749100, C182S040000, C182S082000, C182S085000, C182S088000, C182S106000

Reexamination Certificate

active

07377080

ABSTRACT:
A staircase system (2) includes a rail element (40) and multiple stair elements (42). Baluster elements (44) are coupled to the rail element (40) and to the stair elements (42). A center support system (46) is coupled to and supports the rail element (40) and the stair elements (42). The center support system (46) has a stowed state and a deployed state.

REFERENCES:
patent: 4022404 (1977-05-01), Greiss
patent: 4053140 (1977-10-01), Clemens et al.
patent: 4378862 (1983-04-01), Carmel
patent: 5088248 (1992-02-01), Manna
patent: 5213191 (1993-05-01), Tahara et al.
patent: 5311965 (1994-05-01), Wu
patent: 5397143 (1995-03-01), Bird
patent: 5551372 (1996-09-01), Nicholls
patent: 6425457 (2002-07-01), Lundry
patent: 6431103 (2002-08-01), Meyerdierks
patent: 6616098 (2003-09-01), Mills
patent: 6659225 (2003-12-01), Olliges
patent: 6679334 (2004-01-01), Johnson et al.
patent: 2002/0182026 (2002-12-01), Sandwith
patent: 2003/0019976 (2003-01-01), Cheung
patent: 2007/0119654 (2007-05-01), Akselsen
“Viking-Life—collapsible spiral staircase.” Internet Archive. Mar. 26, 2003. Viking Life-Saving Equipment. Aug. 7, 2007 <http://web.archive.org/web/20030418025432/www.viking-life.com/usr/viking/vikingdotcom.nsf/linkopen/Subcategory-OffshoreEvacuation-Selstair?opendocument>.

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