Note: Descriptions are shown in the official language in which they were submitted.
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~016041
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The Inventlon relates to a gas-tl~ht fully protectlve sult comprislng
a measurln~ and alarm lnstrument worn under the sult for ~onltorlng
~n exploslve envrlonment, comprlslng a dlffuslon-measurln~ head
havlng actlve and inactlve gas-detectlng components separated from
atmosphere by a slntered dlsc.
Fully protectlve sults are worn for work ~nd rescue tn a polluted
envlronment and protect the wearer from toxlc substances. If
combustlble or exploslve mlxtures of ~ases and vapours are present
ln the surroundln~ alr and are wlthln the lower exploslon llmlt and
thus constltute a rlsh of exploslon, the wearer must be worned by
belng Informed of the fact, vla a portable measurlng ond alarm
Instrument. If the lnstrument ls worn outslde the protectlve sult, lt
may be mode Inoperatlve by corroslve pollutants ln the surroundln~
olr. In addltlon, owlng to the awkward ~loves on the sult, the
tnstrument will be dlfflcult to handle ond unrellable ln operatlon.
In addltlon, an acoustlc alarm outslde the sult may not be heard by
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~-~ the weorer.
The obJect of the lnventlon ls to ellmlnate the afore~entioned
dlssdvonta~es of o protectlve sult ln conJunctlon wlth a measurlns
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and olarm tnstrument for lndlcatlng a rlsk of exploslon In the manner
d~escrlbed herelnbefore, and to devlse a protectlve sult comprlslng a
meosurln~ and alorm lnstrument whlch i~ protected ln the sult and ls
slmple to use and rellable ln operatlon.
To thls end occordln6 to the lnventlon a ccsfng holdln~ the
dlffuston-measurfin6 head of the meosurln~ and alarm tnstrument ls
dlsposed tn gas-tlght manner tn the sult moterlal, the caslng beln~
seporoted from the external otmosphere by a dlaphra~m, ond the
dlffuslon-measurtng head can be connected by a coble to the
meosurtng and a brm Instrument, whlch ls secured to the wearer's
body,
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The main advontages of the inventlon are that a dlffuslon-measurlng
head of o measurlng ond olorm Instrument can be dlsposed by slmple
meons in the protectlve sult wlthout the need for structural
alteratlons to the suit.
Other advantageous feotures of the Inventlon wlll be clear from sub-
clol~s 2 to 7.
An embodlment of the lnventlon ls shown ln the drawlngs and wlll be
descrlbed In detall hereinafter. In the drawlngs:
Flg. 1 shows a protectlve sult wlth weorer and a measuring and slor~
lnstrument for wearing under the sult, and
Flg. 2 ls a sectlonal dla~ram of ~ diffuslon-measurlng heod dlsposed
according to the lnventlon ln the protectlve sult and comprlsln6 a
messurtng and alarm instru~ent.
As Flg. 1 shows, o measuring and alarm lnstru~ent 1 ls worn on the
wearer's body und r a gas-tight fully protectlve suIt 2, and o
messured-vorlable plck-up, l.e. o dlffuslon-~easurlng head 3
conmunlcatln wlth the external otmosphere, ls connected by a cable ~
to tb- measurtng ond olorm lnstrument. The cable connectlon ~ can
be plu6ged or scr-w d to the meosurlng ond olorm lnstrument 1.
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~s Flg. 2 shows, o casing 5 for non-detachably holdlng the dlffuslon-
meosurln6 head 3 ls dlsposed in gas-tlght manner ln the sult
aterlal 2a, l.e. the casing 5 extends throu6h the sult m~tertol 2a
and ls screwed to a cap part 8 dlsposed on the outslde of the
protectlve sult, vla o slldlng rlng 6 and o rlgld frome 7 dlsposed on
the inslde of the suit moterlol 2a ond connected thereto ln gas-tight
manner. The dlffuslon-measurlng heod 3 and the octlve and in~ctlve
gas-detecting compon-nts 9 are plugged lnto the caslng 5 vla an 0-
rlng 10. The gas-detecting components 9 ore separated fro~ the
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" 2Q1~041
external otmsphere by a slntered dlsc 11. In order to protect the
gos-detectlng components 9 fro~ corroslve pollutants, o dlaphragn 12
leodtng to the outer atmosphere ls provlded ln ccslng S and ls
dlsposed ln front of the slntered dlsc 11 and combustlble goses or
vapours con dlffuse through lt to the gas-detectlng components 9.
The combustlble gases or vopours to be measured enter the cop part
8, whlch ls connected for flow purposes to the dlffuslon-aeosurlng
heod 3. In the flow dtrectlon, the cop part hos an openlng 13
dlsposed opposlte an entry openlng 14 for combustlble goses and
vapours, and odopted to venttbte the stream of vapour or gos to be
me~sured, advantogeously after an excess pressure or buffer hos bullt
up tn front of the slntered dlsc 11. As a result of the excess
pressure, the streom of gas or vopour to be ae6sured flows unlformly
from the entry openlng 14 through the slntered dlsc 11 to the gos-
detectlng components 9. Thls ensures hlgh occuracy of meosure~ent.
~dvantageously olso, the meosurlng ond olorm lnstrument 1 con be
dlsposed in o pocket ~not shown In the drawlngs) on the lnslde of the
protectlve sult. In the event of on alorm, lf there Is o rlsk of
exploslon, th- weorer con olways be tnfor~ed by on acoustlc olorm,
whlch c~n e.g. be dtrectly transmltted to the wearer vla on earplece.
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