Fire escape – ladder – or scaffold – Safety device for ground-supported ladder
Patent
1997-08-04
2000-02-08
Stodola, Daniel P.
Fire escape, ladder, or scaffold
Safety device for ground-supported ladder
182214, E04G 502
Patent
active
060218657
ABSTRACT:
A load-dispersing device for use with a ladder has a pail of flexible members having first and second configurations and a memory to return the members from the second to the first configuration. An interior cavity within each member is exposed, when each member is in the second configuration, through a longitudinal slit. Separating the longitudinal slit exposes the interior cavity placing the member in the second configuration for mounting on the respective ladder side rail and releasing the longitudinal slit returns the member to the first configuration and secures the member around the respective side rail. The member having contact and locking areas which can be manufactured either from separate material or integral with one another. The contact area can have an undulating surface and can have a spring embedded within the contact area to return the member to the first configuration. The contact area can alternatively be adhered directly to the load-bearing surface of the ladder.
REFERENCES:
patent: 533392 (1895-01-01), Lord
patent: 1600103 (1926-09-01), Evans
patent: 2138171 (1938-11-01), Johnson
patent: 2803388 (1957-08-01), Ross
patent: 2904128 (1959-09-01), Boham et al.
patent: 3662856 (1972-05-01), D'Amico et al.
patent: 3910380 (1975-10-01), Nameche
patent: 3948353 (1976-04-01), Lane
patent: 3993163 (1976-11-01), Barrett
patent: 4444291 (1984-04-01), McPherson
patent: 4469194 (1984-09-01), McBride
patent: 4580660 (1986-04-01), Oling
patent: 4580661 (1986-04-01), Thomson, Jr.
patent: 4601365 (1986-07-01), Davis
patent: 4726446 (1988-02-01), Perbix
patent: 4754842 (1988-07-01), Southern
patent: 4771862 (1988-09-01), Garland
patent: 4899848 (1990-02-01), Parr
patent: 4924971 (1990-05-01), Rice
patent: 4974699 (1990-12-01), Boring
patent: 5121813 (1992-06-01), Funston
patent: 5165641 (1992-11-01), Southern
patent: 5293958 (1994-03-01), Swiderski
patent: 5533591 (1996-07-01), Kiska
Harris, Jr. Wilfred L.
Thompson John G.
Parker Sheldon H.
Smith Richard M.
Stodola Daniel P.
LandOfFree
Load-dispersing device for portable non-free-standing ladders does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Load-dispersing device for portable non-free-standing ladders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Load-dispersing device for portable non-free-standing ladders will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1674214