Fire escape – ladder – or scaffold – With insulation
Patent
1991-09-18
1992-10-20
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
With insulation
182209, 182215, 182228, E06C 708, E06C 750
Patent
active
051562340
ABSTRACT:
A single run or extension ladder particularly suitable for use where electrical safety is significant. Stiles 6 are each formed from a pair of elongate hollow members 5 fabricated from glass-fibre material. Rung supports 7 are formed from an aluminium extrusion comprising a pair of piped edge sections 8 separated by a pair of webs 9 in the nature of a box-section 10. The elongate members 5 extend through and are attached to the edge sections 8 by an adhesive. The rung supports 7 thus space the elongate members 5 adjacently apart to form a stile 6. The ends of rungs 12 are mounted in laterally aligning apertures 14 in the webs 9, the end of a rung 12 being crimped back onto an outer of the webs 9. End caps or feet 16 are provided on the stiles 6. An extension ladder is formed in conventional manner, to that end, saddles 18 telescopically captivate a pair of such single run ladders together.
REFERENCES:
patent: 848114 (1907-03-01), Medart
patent: 2171863 (1939-09-01), Pirsch
patent: 2598278 (1952-05-01), Mason
patent: 3158224 (1964-11-01), Van Name
patent: 3454130 (1969-07-01), Pellandine
patent: 3674110 (1972-07-01), Cooke
patent: 4371055 (1983-02-01), Ashton
McCallum Bruce D.
McCallum Scott J.
Machado Reinaldo P.
McCallum Enterprises Limited
LandOfFree
Ladder structure does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ladder structure, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ladder structure will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-187268