Ultrasonic cleansing

A method of cleaning a surface of an underwater structure, in which focussed beams of acoustic energy are directed at a surface to be cleaned with an energy level sufficient to cause cavitation of the water adjacent the surface and/or direct mechanical disruption at the surface, thereby dislodging m...

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Hauptverfasser:	GORDON BANKS ROBERTSON, RICHARD NESBITT, DESMOND JOSEPH D'ARCY
Format:	Patent
Sprache:	eng
Schlagworte:	CLEANING CLEANING IN GENERAL EQUIPMENT FOR SHIPPING PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
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creator	GORDON BANKS ROBERTSON RICHARD NESBITT DESMOND JOSEPH D'ARCY
description	A method of cleaning a surface of an underwater structure, in which focussed beams of acoustic energy are directed at a surface to be cleaned with an energy level sufficient to cause cavitation of the water adjacent the surface and/or direct mechanical disruption at the surface, thereby dislodging matter to be removed. In one embodiment a part-spherical array (1) of acoustic transducers (2) is arranged to direct the beams to a common focus (4). In an alternative embodiment, separate focussing means may be used with a flat array. An array may be hand held or mounted to an underwater vehicle. Part-cylindrical or parabolic arrays may also be used. The method is useful for cleaning subsea structures, e.g. oil rigs, at below 15 metres depth.
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In one embodiment a part-spherical array (1) of acoustic transducers (2) is arranged to direct the beams to a common focus (4). In an alternative embodiment, separate focussing means may be used with a flat array. An array may be hand held or mounted to an underwater vehicle. Part-cylindrical or parabolic arrays may also be used. The method is useful for cleaning subsea structures, e.g. oil rigs, at below 15 metres depth.</description><edition>4</edition><language>eng</language><subject>CLEANING ; CLEANING IN GENERAL ; EQUIPMENT FOR SHIPPING ; PERFORMING OPERATIONS ; PREVENTION OF FOULING IN GENERAL ; RELATED EQUIPMENT ; SHIPS OR OTHER WATERBORNE VESSELS ; TRANSPORTING</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=19860409&DB=EPODOC&CC=GB&NR=2165330A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19860409&DB=EPODOC&CC=GB&NR=2165330A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GORDON BANKS ROBERTSON</creatorcontrib><creatorcontrib>RICHARD NESBITT</creatorcontrib><creatorcontrib>DESMOND JOSEPH D'ARCY</creatorcontrib><title>Ultrasonic cleansing</title><description>A method of cleaning a surface of an underwater structure, in which focussed beams of acoustic energy are directed at a surface to be cleaned with an energy level sufficient to cause cavitation of the water adjacent the surface and/or direct mechanical disruption at the surface, thereby dislodging matter to be removed. In one embodiment a part-spherical array (1) of acoustic transducers (2) is arranged to direct the beams to a common focus (4). In an alternative embodiment, separate focussing means may be used with a flat array. An array may be hand held or mounted to an underwater vehicle. Part-cylindrical or parabolic arrays may also be used. The method is useful for cleaning subsea structures, e.g. oil rigs, at below 15 metres depth.</description><subject>CLEANING</subject><subject>CLEANING IN GENERAL</subject><subject>EQUIPMENT FOR SHIPPING</subject><subject>PERFORMING OPERATIONS</subject><subject>PREVENTION OF FOULING IN GENERAL</subject><subject>RELATED EQUIPMENT</subject><subject>SHIPS OR OTHER WATERBORNE VESSELS</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1986</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAJzSkpSizOz8tMVkjOSU3MK87MS-dhYE1LzClO5YXS3Azybq4hzh66qQX58anFBYnJqXmpJfHuTkaGZqbGxgaOxoRVAADhgCAH</recordid><startdate>19860409</startdate><enddate>19860409</enddate><creator>GORDON BANKS ROBERTSON</creator><creator>RICHARD NESBITT</creator><creator>DESMOND JOSEPH D'ARCY</creator><scope>EVB</scope></search><sort><creationdate>19860409</creationdate><title>Ultrasonic cleansing</title><author>GORDON BANKS ROBERTSON ; RICHARD NESBITT ; DESMOND JOSEPH D'ARCY</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_GB2165330A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>1986</creationdate><topic>CLEANING</topic><topic>CLEANING IN GENERAL</topic><topic>EQUIPMENT FOR SHIPPING</topic><topic>PERFORMING OPERATIONS</topic><topic>PREVENTION OF FOULING IN GENERAL</topic><topic>RELATED EQUIPMENT</topic><topic>SHIPS OR OTHER WATERBORNE VESSELS</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>GORDON BANKS ROBERTSON</creatorcontrib><creatorcontrib>RICHARD NESBITT</creatorcontrib><creatorcontrib>DESMOND JOSEPH D'ARCY</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>GORDON BANKS ROBERTSON</au><au>RICHARD NESBITT</au><au>DESMOND JOSEPH D'ARCY</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Ultrasonic cleansing</title><date>1986-04-09</date><risdate>1986</risdate><abstract>A method of cleaning a surface of an underwater structure, in which focussed beams of acoustic energy are directed at a surface to be cleaned with an energy level sufficient to cause cavitation of the water adjacent the surface and/or direct mechanical disruption at the surface, thereby dislodging matter to be removed. In one embodiment a part-spherical array (1) of acoustic transducers (2) is arranged to direct the beams to a common focus (4). In an alternative embodiment, separate focussing means may be used with a flat array. An array may be hand held or mounted to an underwater vehicle. Part-cylindrical or parabolic arrays may also be used. The method is useful for cleaning subsea structures, e.g. oil rigs, at below 15 metres depth.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record>
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subjects	CLEANING CLEANING IN GENERAL EQUIPMENT FOR SHIPPING PERFORMING OPERATIONS PREVENTION OF FOULING IN GENERAL RELATED EQUIPMENT SHIPS OR OTHER WATERBORNE VESSELS TRANSPORTING
title	Ultrasonic cleansing
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