Zephinie's original design of the twin sleeves
concentric action remains the most simple and efficient vertical
escape chute solution. The twin sleeves concentric action remains the
most simple and efficient vertical escape chute solution
© Copyright 1973, 2002 by Gerard
3. AN INTERIOR TUBE stable in both warp and weft directions,
designed to absorb the vertical force exerted by friction caused by
the moving body and bear the whole weight in the event of a
stoppage. The resistant tube is made of aromatic polyamide.
2. AN ELASTIC TUBE designed to regulate the speed of descending
objects by stretching radially.
3, AN EXTERNAL HEAT resistant tube made of fiberglass able to
withstand up to 800 degrees Celsius.
COMPOSITION OF THE ZEC:
The composition of the ZEC system brings all kinds of guarantees
from the safety point of view: protection against fire, very good
strength, the best available life duration.
THE HEAT-RESISTING SHEATH. Is made of fiberglass material which is
fire proof by nature. I
THE AIR MATTRESS.
Between the heat-resisting sheath and the braking tube, air provides
the thermal insulation of the chute because of its low thermal
After thermal saturation of the air, cooling by running water allows
long duration utilization with flame con-tact.
THE BRAKING SHEATH.
Made of elastic material it fits the body whatever the bulk of the
per-son, which allows a constant de-scent speed.
THE SUPPORTING SHEATH.
Owing to its synthetic material, namely the kevlar*, it has an
elastic strength ten times higher than that of steel: it can
bear, in the event of a stop, the load of people contained at that
time in the chute.
Breaking load : 14,000 Kg
Working load: 1,500 Kg
Some manufacturing know-how are
Warning: those who have counterfeited for
years the ZEC technology never understood some crucial manufacturing
factors that can produce grave accidents.
We keep the sample of an Ingstrom chutes having occasioned a grave
accident as evidence. We have also the original invoice of the
product. Witnesses of the accident can confirm the
ZEC technology has been one of the first extraordinary usage of
Madame STEPHANIE Louise KWOLEK great invention first marketed in 1971 under the brand name Kevlar®, thanks to the cooperation of Dupont
Laboratories of Geneva, Swiss, and Wilmington, USA, to the
development of Zephinie 's new vertical evacuation technology in
1973. (see Dupont page
Madame STEPHANIE Louise KWOLEK's history.