Safety nozzles for autogenous welding equipment - with spring-loaded return valve and flame barrier to stop blow-backs

In normal operation, gas flows down one side of the nozzle into a central cylinder, which houses a spring-loaded valve; after going through the valve, the gas passes through a disc of porous sintered material, which also supports the spring, and then out of the nozzle. If there is a back-fire, causi...

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Hauptverfasser:	BORNMANN, HANS, HEPPNER, WOLFGANG
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION PROCESSES HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
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creator	BORNMANN, HANS HEPPNER, WOLFGANG
description	In normal operation, gas flows down one side of the nozzle into a central cylinder, which houses a spring-loaded valve; after going through the valve, the gas passes through a disc of porous sintered material, which also supports the spring, and then out of the nozzle. If there is a back-fire, causing a shock-wave, the flame is held back by the sintered disc which acts on the spring-loaded valve, keeping it closed, i.e. this is a back-flow barrier valve. The blow-back can then go through the sintered disc past a second spring-loaded valve into a chamber from which it can enter the top of the central cylinder; it then presses on a piston which seals the entry-port to the main valve, thus effectively preventing any after-flow.
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If there is a back-fire, causing a shock-wave, the flame is held back by the sintered disc which acts on the spring-loaded valve, keeping it closed, i.e. this is a back-flow barrier valve. The blow-back can then go through the sintered disc past a second spring-loaded valve into a chamber from which it can enter the top of the central cylinder; it then presses on a piston which seals the entry-port to the main valve, thus effectively preventing any after-flow.</description><edition>2</edition><language>eng ; ger</language><subject>BLASTING ; BURNERS ; COMBUSTION APPARATUS ; COMBUSTION PROCESSES ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; WEAPONS</subject><creationdate>1974</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19741128&DB=EPODOC&CC=DE&NR=2323294A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19741128&DB=EPODOC&CC=DE&NR=2323294A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BORNMANN, HANS</creatorcontrib><creatorcontrib>HEPPNER, WOLFGANG</creatorcontrib><title>Safety nozzles for autogenous welding equipment - with spring-loaded return valve and flame barrier to stop blow-backs</title><description>In normal operation, gas flows down one side of the nozzle into a central cylinder, which houses a spring-loaded valve; after going through the valve, the gas passes through a disc of porous sintered material, which also supports the spring, and then out of the nozzle. 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language	eng ; ger
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subjects	BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION PROCESSES HEATING LIGHTING MECHANICAL ENGINEERING WEAPONS
title	Safety nozzles for autogenous welding equipment - with spring-loaded return valve and flame barrier to stop blow-backs
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