VALVULA MEJORADA PARA SERVICIO CRIOGENICO
A valve seal mechanism for cryogenic applications includes an undercut groove in a seating region of the fluid passageway in a valve body. Disposed within the groove is a shouldered resilient wear ring of polytetrafluoroethylene, the outer circumference of the shouldered portion of the wear ring hav...
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| creator | JOHN MUNROE CORY HARRY CHESTER CHAMPLIN JR RONALD ALF OLANSEN |
| description | A valve seal mechanism for cryogenic applications includes an undercut groove in a seating region of the fluid passageway in a valve body. Disposed within the groove is a shouldered resilient wear ring of polytetrafluoroethylene, the outer circumference of the shouldered portion of the wear ring having a V-shaped channel formed therein. A solid backing ring having an inner circumferential surface of wedge-shaped cross section makes an interference fit with the V-channel of the wear ring, thereby preloading the channel sides against the respective adjacent sides of the groove. A valve disc has a sealing surface which makes an interference fit with a seating surface forming the inner circumferential surface of the wear ring. Introduction of fluid under pressure and reduction of temperatures from normal ambient to cryogenic both tend to increase sealing effectiveness. |
| format | Patent |
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Disposed within the groove is a shouldered resilient wear ring of polytetrafluoroethylene, the outer circumference of the shouldered portion of the wear ring having a V-shaped channel formed therein. A solid backing ring having an inner circumferential surface of wedge-shaped cross section makes an interference fit with the V-channel of the wear ring, thereby preloading the channel sides against the respective adjacent sides of the groove. A valve disc has a sealing surface which makes an interference fit with a seating surface forming the inner circumferential surface of the wear ring. Introduction of fluid under pressure and reduction of temperatures from normal ambient to cryogenic both tend to increase sealing effectiveness.</description><edition>4</edition><language>spa</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; DEVICES FOR VENTING OR AERATING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>1986</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=19860730&DB=EPODOC&CC=MX&NR=153086A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860730&DB=EPODOC&CC=MX&NR=153086A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JOHN MUNROE CORY</creatorcontrib><creatorcontrib>HARRY CHESTER CHAMPLIN JR</creatorcontrib><creatorcontrib>RONALD ALF OLANSEN</creatorcontrib><title>VALVULA MEJORADA PARA SERVICIO CRIOGENICO</title><description>A valve seal mechanism for cryogenic applications includes an undercut groove in a seating region of the fluid passageway in a valve body. Disposed within the groove is a shouldered resilient wear ring of polytetrafluoroethylene, the outer circumference of the shouldered portion of the wear ring having a V-shaped channel formed therein. A solid backing ring having an inner circumferential surface of wedge-shaped cross section makes an interference fit with the V-channel of the wear ring, thereby preloading the channel sides against the respective adjacent sides of the groove. A valve disc has a sealing surface which makes an interference fit with a seating surface forming the inner circumferential surface of the wear ring. Introduction of fluid under pressure and reduction of temperatures from normal ambient to cryogenic both tend to increase sealing effectiveness.</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAMc_QJC_VxVPB19fIPcnRxVAhwDHJUCHYNCvN09vRXcA7y9Hd39fN09udhYE1LzClO5YXS3Axybq4hzh66qQX58anFBYnJqXmpJfG-EYamxgYWZo7GBBUAAGDUI0g</recordid><startdate>19860730</startdate><enddate>19860730</enddate><creator>JOHN MUNROE CORY</creator><creator>HARRY CHESTER CHAMPLIN JR</creator><creator>RONALD ALF OLANSEN</creator><scope>EVB</scope></search><sort><creationdate>19860730</creationdate><title>VALVULA MEJORADA PARA SERVICIO CRIOGENICO</title><author>JOHN MUNROE CORY ; HARRY CHESTER CHAMPLIN JR ; RONALD ALF OLANSEN</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MX153086A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>spa</language><creationdate>1986</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>JOHN MUNROE CORY</creatorcontrib><creatorcontrib>HARRY CHESTER CHAMPLIN JR</creatorcontrib><creatorcontrib>RONALD ALF OLANSEN</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JOHN MUNROE CORY</au><au>HARRY CHESTER CHAMPLIN JR</au><au>RONALD ALF OLANSEN</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>VALVULA MEJORADA PARA SERVICIO CRIOGENICO</title><date>1986-07-30</date><risdate>1986</risdate><abstract>A valve seal mechanism for cryogenic applications includes an undercut groove in a seating region of the fluid passageway in a valve body. Disposed within the groove is a shouldered resilient wear ring of polytetrafluoroethylene, the outer circumference of the shouldered portion of the wear ring having a V-shaped channel formed therein. A solid backing ring having an inner circumferential surface of wedge-shaped cross section makes an interference fit with the V-channel of the wear ring, thereby preloading the channel sides against the respective adjacent sides of the groove. A valve disc has a sealing surface which makes an interference fit with a seating surface forming the inner circumferential surface of the wear ring. Introduction of fluid under pressure and reduction of temperatures from normal ambient to cryogenic both tend to increase sealing effectiveness.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | VALVULA MEJORADA PARA SERVICIO CRIOGENICO |
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