Fire escape – ladder – or scaffold – Horizontal traversing - actuation – control – or response – Holding means
Patent
1997-05-05
1999-08-24
Chin-Shue, Alvin
Fire escape, ladder, or scaffold
Horizontal traversing - actuation, control, or response
Holding means
182 15, E06C 500
Patent
active
059413417
ABSTRACT:
A safety ladder stand comprising a generally rectangular base having a front and rear and a center beam, a plurality of stair treads extending upward from the front of said base and means for supporting said stair treads secured to said base, front wheels mounted at the front of said base and beneath the top of said stair treads; center wheels mounted on said center beam of said base, and rear wheels mounted at the rear of said base, and a set of feet mounted on the front of said base; wherein said ladder stand has an activated position wherein said front and center wheel sets are in contact with the ground to enable said ladder stand to roll and said rear wheels and front support feet are not in contact with the ground, as well as a deactivated position wherein the front and center wheel sets are not in contact with the ground and said rear wheels and front support feet are in contact with the ground to prevent said ladder stand from being rolled; and means for moving said ladder stand from said deactivated position to said activated position.
REFERENCES:
patent: 321342 (1885-06-01), Covert
patent: 1239498 (1917-09-01), Madigan
patent: 1355173 (1970-10-01), Shadel
patent: 1360208 (1920-11-01), Gamble
patent: 2216972 (1940-10-01), Gibson
patent: 2585763 (1952-02-01), Gasner
patent: 2624590 (1953-01-01), Tilton
patent: 3155190 (1964-11-01), Borgman
patent: 3291254 (1966-12-01), Mihalik
patent: 3684055 (1972-08-01), Rice
patent: 3685851 (1972-08-01), Berry
patent: 4063616 (1977-12-01), Gutierrez
patent: 4793624 (1988-12-01), Mace
Gillis Donald G.
Johnson Daniel
Browne Robert E.
Chin-Shue Alvin
Galis Mark R.
LandOfFree
Mobile ladder stand does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mobile ladder stand, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mobile ladder stand will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-458430