Check valve and check valve seat
A seat and flapper assembly for use in a check valve having a housing with an upstream side and a downstream side, wherein said check valve is adapted to prevent backflow in a flow path when upstream regular flow pressure drops to a predetermined level, said assembly comprising: a generally ring-sha...
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| creator | BATES, ROY C WILSON, MICHAEL E., JR |
| description | A seat and flapper assembly for use in a check valve having a housing with an upstream side and a downstream side, wherein said check valve is adapted to prevent backflow in a flow path when upstream regular flow pressure drops to a predetermined level, said assembly comprising: a generally ring-shaped seating member having a passage therethrough and positioned within said housing such that said passage forms part of said flow path, said seating member formed from a unitary piece of material and comprising a flat base surface positioned in said housing with said flat base surface facing upstream, an upward-angled planar top sealing surface and connector means formed on said top planar surface for connecting a moveable flapper lid to said seating member; said flapper lid comprising a flapper sealing surface adapted to sealingly engage the top sealing surface of the seating member to stop backflow when said regular flow pressure from upstream drops to a predetermined level causing the flapper lid to rest in the closed position. The invention includes a check valve assembly incorporating the seat and flapper assembly. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP0760418A3</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP0760418A3</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP0760418A33</originalsourceid><addsrcrecordid>eNrjZFBwzkhNzlYoS8wpS1VIzEtRSEbiF6cmlvAwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXAANzMwMTQwtHY2MilAAAyuskPw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Check valve and check valve seat</title><source>esp@cenet</source><creator>BATES, ROY C ; WILSON, MICHAEL E., JR</creator><creatorcontrib>BATES, ROY C ; WILSON, MICHAEL E., JR</creatorcontrib><description>A seat and flapper assembly for use in a check valve having a housing with an upstream side and a downstream side, wherein said check valve is adapted to prevent backflow in a flow path when upstream regular flow pressure drops to a predetermined level, said assembly comprising: a generally ring-shaped seating member having a passage therethrough and positioned within said housing such that said passage forms part of said flow path, said seating member formed from a unitary piece of material and comprising a flat base surface positioned in said housing with said flat base surface facing upstream, an upward-angled planar top sealing surface and connector means formed on said top planar surface for connecting a moveable flapper lid to said seating member; said flapper lid comprising a flapper sealing surface adapted to sealingly engage the top sealing surface of the seating member to stop backflow when said regular flow pressure from upstream drops to a predetermined level causing the flapper lid to rest in the closed position. The invention includes a check valve assembly incorporating the seat and flapper assembly.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>ACTUATING-FLOATS ; BLASTING ; COCKS ; DEVICES FOR VENTING OR AERATING ; EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; ENGINEERING ELEMENTS AND UNITS ; FIXED CONSTRUCTIONS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; TAPS ; THERMAL INSULATION IN GENERAL ; VALVES ; WEAPONS</subject><creationdate>1998</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=19980513&DB=EPODOC&CC=EP&NR=0760418A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19980513&DB=EPODOC&CC=EP&NR=0760418A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BATES, ROY C</creatorcontrib><creatorcontrib>WILSON, MICHAEL E., JR</creatorcontrib><title>Check valve and check valve seat</title><description>A seat and flapper assembly for use in a check valve having a housing with an upstream side and a downstream side, wherein said check valve is adapted to prevent backflow in a flow path when upstream regular flow pressure drops to a predetermined level, said assembly comprising: a generally ring-shaped seating member having a passage therethrough and positioned within said housing such that said passage forms part of said flow path, said seating member formed from a unitary piece of material and comprising a flat base surface positioned in said housing with said flat base surface facing upstream, an upward-angled planar top sealing surface and connector means formed on said top planar surface for connecting a moveable flapper lid to said seating member; said flapper lid comprising a flapper sealing surface adapted to sealingly engage the top sealing surface of the seating member to stop backflow when said regular flow pressure from upstream drops to a predetermined level causing the flapper lid to rest in the closed position. The invention includes a check valve assembly incorporating the seat and flapper assembly.</description><subject>ACTUATING-FLOATS</subject><subject>BLASTING</subject><subject>COCKS</subject><subject>DEVICES FOR VENTING OR AERATING</subject><subject>EARTH DRILLING</subject><subject>EARTH DRILLING, e.g. DEEP DRILLING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FIXED CONSTRUCTIONS</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>MINING</subject><subject>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</subject><subject>TAPS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>VALVES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1998</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBwzkhNzlYoS8wpS1VIzEtRSEbiF6cmlvAwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXAANzMwMTQwtHY2MilAAAyuskPw</recordid><startdate>19980513</startdate><enddate>19980513</enddate><creator>BATES, ROY C</creator><creator>WILSON, MICHAEL E., JR</creator><scope>EVB</scope></search><sort><creationdate>19980513</creationdate><title>Check valve and check valve seat</title><author>BATES, ROY C ; WILSON, MICHAEL E., JR</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0760418A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1998</creationdate><topic>ACTUATING-FLOATS</topic><topic>BLASTING</topic><topic>COCKS</topic><topic>DEVICES FOR VENTING OR AERATING</topic><topic>EARTH DRILLING</topic><topic>EARTH DRILLING, e.g. DEEP DRILLING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FIXED CONSTRUCTIONS</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>MINING</topic><topic>OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS</topic><topic>TAPS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>VALVES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>BATES, ROY C</creatorcontrib><creatorcontrib>WILSON, MICHAEL E., JR</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BATES, ROY C</au><au>WILSON, MICHAEL E., JR</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Check valve and check valve seat</title><date>1998-05-13</date><risdate>1998</risdate><abstract>A seat and flapper assembly for use in a check valve having a housing with an upstream side and a downstream side, wherein said check valve is adapted to prevent backflow in a flow path when upstream regular flow pressure drops to a predetermined level, said assembly comprising: a generally ring-shaped seating member having a passage therethrough and positioned within said housing such that said passage forms part of said flow path, said seating member formed from a unitary piece of material and comprising a flat base surface positioned in said housing with said flat base surface facing upstream, an upward-angled planar top sealing surface and connector means formed on said top planar surface for connecting a moveable flapper lid to said seating member; said flapper lid comprising a flapper sealing surface adapted to sealingly engage the top sealing surface of the seating member to stop backflow when said regular flow pressure from upstream drops to a predetermined level causing the flapper lid to rest in the closed position. The invention includes a check valve assembly incorporating the seat and flapper assembly.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS |
| title | Check valve and check valve seat |
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