SURFACE TREATMENT OF CONCRETE
The invention provides a method and an apparatus for treating a surface for the removal of a surface portion thereof, comprising the steps of producing a beam of laser light and obscuring a low power density part of the laser beam before irradiating a surface location with the laser light so as to r...
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| creator | BENJAMIN, ANDREW, WILLIAM THOMAS, TRISTAN, GORONWY SPENCER, JULIAN, TIMOTHY BROWN, STEPHEN, CHRISTOPHER, NEIL |
| description | The invention provides a method and an apparatus for treating a surface for the removal of a surface portion thereof, comprising the steps of producing a beam of laser light and obscuring a low power density part of the laser beam before irradiating a surface location with the laser light so as to remove the surface portion. The apparatus for treating a surface for the removal of a surface portion thereof, comprises a laser source for producing a laser beam for irradiating a surface location with laser light so as to remove the surface portion wherein a low power density part of the laser beam is obscured and does not impinge upon the surface. The obscuration may be effected by a shadow mask and/or a reflective mask.
L'invention concerne un procédé et un appareil permettant de traiter une surface afin d'éliminer une partie superficielle de cette surface, le procédé comprenant les étapes qui consistent: à produire un faisceau de lumière laser; et à obscurcir une partie à faible densité de puissance du faisceau laser avant d'irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle. L'appareil de l'invention qui permet de traiter une surface afin d'éliminer une partie superficielle de celle-ci, comprend une source laser permettant de produire un faisceau laser destiné à irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle, une partie à faible densité de puissance du faisceau laser étant obscurcie et n'ayant pas d'impact sur la surface. L'obscurcissement peut être effectué par un masque perforé et/ou par un masque réfléchissant. |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_WO2004029990A3</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>WO2004029990A3</sourcerecordid><originalsourceid>FETCH-epo_espacenet_WO2004029990A33</originalsourceid><addsrcrecordid>eNrjZJANDg1yc3R2VQgJcnUM8XX1C1Hwd1Nw9vdzDnINceVhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfHh_kYGBiYGRpaWlgaOxsbEqQIAFhIiAw</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>SURFACE TREATMENT OF CONCRETE</title><source>esp@cenet</source><creator>BENJAMIN, ANDREW, WILLIAM ; THOMAS, TRISTAN, GORONWY ; SPENCER, JULIAN, TIMOTHY ; BROWN, STEPHEN, CHRISTOPHER, NEIL</creator><creatorcontrib>BENJAMIN, ANDREW, WILLIAM ; THOMAS, TRISTAN, GORONWY ; SPENCER, JULIAN, TIMOTHY ; BROWN, STEPHEN, CHRISTOPHER, NEIL</creatorcontrib><description>The invention provides a method and an apparatus for treating a surface for the removal of a surface portion thereof, comprising the steps of producing a beam of laser light and obscuring a low power density part of the laser beam before irradiating a surface location with the laser light so as to remove the surface portion. The apparatus for treating a surface for the removal of a surface portion thereof, comprises a laser source for producing a laser beam for irradiating a surface location with laser light so as to remove the surface portion wherein a low power density part of the laser beam is obscured and does not impinge upon the surface. The obscuration may be effected by a shadow mask and/or a reflective mask.
L'invention concerne un procédé et un appareil permettant de traiter une surface afin d'éliminer une partie superficielle de cette surface, le procédé comprenant les étapes qui consistent: à produire un faisceau de lumière laser; et à obscurcir une partie à faible densité de puissance du faisceau laser avant d'irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle. L'appareil de l'invention qui permet de traiter une surface afin d'éliminer une partie superficielle de celle-ci, comprend une source laser permettant de produire un faisceau laser destiné à irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle, une partie à faible densité de puissance du faisceau laser étant obscurcie et n'ayant pas d'impact sur la surface. L'obscurcissement peut être effectué par un masque perforé et/ou par un masque réfléchissant.</description><edition>7</edition><language>eng ; fre</language><subject>CLADDING OR PLATING BY SOLDERING OR WELDING ; CLEANING ; CLEANING IN GENERAL ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; DECONTAMINATION ARRANGEMENTS THEREFOR ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; NUCLEAR ENGINEERING ; NUCLEAR PHYSICS ; PERFORMING OPERATIONS ; PHYSICS ; PREVENTION OF FOULING IN GENERAL ; PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; TREATING RADIOACTIVELY CONTAMINATED MATERIAL ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>2004</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=20040603&DB=EPODOC&CC=WO&NR=2004029990A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20040603&DB=EPODOC&CC=WO&NR=2004029990A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>BENJAMIN, ANDREW, WILLIAM</creatorcontrib><creatorcontrib>THOMAS, TRISTAN, GORONWY</creatorcontrib><creatorcontrib>SPENCER, JULIAN, TIMOTHY</creatorcontrib><creatorcontrib>BROWN, STEPHEN, CHRISTOPHER, NEIL</creatorcontrib><title>SURFACE TREATMENT OF CONCRETE</title><description>The invention provides a method and an apparatus for treating a surface for the removal of a surface portion thereof, comprising the steps of producing a beam of laser light and obscuring a low power density part of the laser beam before irradiating a surface location with the laser light so as to remove the surface portion. The apparatus for treating a surface for the removal of a surface portion thereof, comprises a laser source for producing a laser beam for irradiating a surface location with laser light so as to remove the surface portion wherein a low power density part of the laser beam is obscured and does not impinge upon the surface. The obscuration may be effected by a shadow mask and/or a reflective mask.
L'invention concerne un procédé et un appareil permettant de traiter une surface afin d'éliminer une partie superficielle de cette surface, le procédé comprenant les étapes qui consistent: à produire un faisceau de lumière laser; et à obscurcir une partie à faible densité de puissance du faisceau laser avant d'irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle. L'appareil de l'invention qui permet de traiter une surface afin d'éliminer une partie superficielle de celle-ci, comprend une source laser permettant de produire un faisceau laser destiné à irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle, une partie à faible densité de puissance du faisceau laser étant obscurcie et n'ayant pas d'impact sur la surface. L'obscurcissement peut être effectué par un masque perforé et/ou par un masque réfléchissant.</description><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CLEANING</subject><subject>CLEANING IN GENERAL</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>DECONTAMINATION ARRANGEMENTS THEREFOR</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>NUCLEAR ENGINEERING</subject><subject>NUCLEAR PHYSICS</subject><subject>PERFORMING OPERATIONS</subject><subject>PHYSICS</subject><subject>PREVENTION OF FOULING IN GENERAL</subject><subject>PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>TREATING RADIOACTIVELY CONTAMINATED MATERIAL</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2004</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZJANDg1yc3R2VQgJcnUM8XX1C1Hwd1Nw9vdzDnINceVhYE1LzClO5YXS3AzKbq4hzh66qQX58anFBYnJqXmpJfHh_kYGBiYGRpaWlgaOxsbEqQIAFhIiAw</recordid><startdate>20040603</startdate><enddate>20040603</enddate><creator>BENJAMIN, ANDREW, WILLIAM</creator><creator>THOMAS, TRISTAN, GORONWY</creator><creator>SPENCER, JULIAN, TIMOTHY</creator><creator>BROWN, STEPHEN, CHRISTOPHER, NEIL</creator><scope>EVB</scope></search><sort><creationdate>20040603</creationdate><title>SURFACE TREATMENT OF CONCRETE</title><author>BENJAMIN, ANDREW, WILLIAM ; THOMAS, TRISTAN, GORONWY ; SPENCER, JULIAN, TIMOTHY ; BROWN, STEPHEN, CHRISTOPHER, NEIL</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_WO2004029990A33</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>2004</creationdate><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CLEANING</topic><topic>CLEANING IN GENERAL</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>DECONTAMINATION ARRANGEMENTS THEREFOR</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>NUCLEAR ENGINEERING</topic><topic>NUCLEAR PHYSICS</topic><topic>PERFORMING OPERATIONS</topic><topic>PHYSICS</topic><topic>PREVENTION OF FOULING IN GENERAL</topic><topic>PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>TREATING RADIOACTIVELY CONTAMINATED MATERIAL</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>BENJAMIN, ANDREW, WILLIAM</creatorcontrib><creatorcontrib>THOMAS, TRISTAN, GORONWY</creatorcontrib><creatorcontrib>SPENCER, JULIAN, TIMOTHY</creatorcontrib><creatorcontrib>BROWN, STEPHEN, CHRISTOPHER, NEIL</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>BENJAMIN, ANDREW, WILLIAM</au><au>THOMAS, TRISTAN, GORONWY</au><au>SPENCER, JULIAN, TIMOTHY</au><au>BROWN, STEPHEN, CHRISTOPHER, NEIL</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SURFACE TREATMENT OF CONCRETE</title><date>2004-06-03</date><risdate>2004</risdate><abstract>The invention provides a method and an apparatus for treating a surface for the removal of a surface portion thereof, comprising the steps of producing a beam of laser light and obscuring a low power density part of the laser beam before irradiating a surface location with the laser light so as to remove the surface portion. The apparatus for treating a surface for the removal of a surface portion thereof, comprises a laser source for producing a laser beam for irradiating a surface location with laser light so as to remove the surface portion wherein a low power density part of the laser beam is obscured and does not impinge upon the surface. The obscuration may be effected by a shadow mask and/or a reflective mask.
L'invention concerne un procédé et un appareil permettant de traiter une surface afin d'éliminer une partie superficielle de cette surface, le procédé comprenant les étapes qui consistent: à produire un faisceau de lumière laser; et à obscurcir une partie à faible densité de puissance du faisceau laser avant d'irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle. L'appareil de l'invention qui permet de traiter une surface afin d'éliminer une partie superficielle de celle-ci, comprend une source laser permettant de produire un faisceau laser destiné à irradier un emplacement de la surface au moyen de la lumière laser afin d'éliminer ladite partie superficielle, une partie à faible densité de puissance du faisceau laser étant obscurcie et n'ayant pas d'impact sur la surface. L'obscurcissement peut être effectué par un masque perforé et/ou par un masque réfléchissant.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CLEANING CLEANING IN GENERAL CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING DECONTAMINATION ARRANGEMENTS THEREFOR MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR NUCLEAR ENGINEERING NUCLEAR PHYSICS PERFORMING OPERATIONS PHYSICS PREVENTION OF FOULING IN GENERAL PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT SOLDERING OR UNSOLDERING TRANSPORTING TREATING RADIOACTIVELY CONTAMINATED MATERIAL WELDING WORKING BY LASER BEAM |
| title | SURFACE TREATMENT OF CONCRETE |
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