Screws having selected heat treatment and hardening
A carbon steel screw has one or more portions which have been selectively hardened by selective heat treatment and quenching. In one embodiment, an upper portion (24) of the screw head (12) is selectively hardened to prevent or reduce damage when torque is applied using a driving tool. The screw tip...
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| creator | SPRING, WILLIAM A ULHASAN, RIAZ S BAUER, MARK D STAROZHITSKY, MICHAEL |
| description | A carbon steel screw has one or more portions which have been selectively hardened by selective heat treatment and quenching. In one embodiment, an upper portion (24) of the screw head (12) is selectively hardened to prevent or reduce damage when torque is applied using a driving tool. The screw tip (16) may be selectively hardened for more effective penetration into a substrate. Preferably, the selectively heated portions are selectively quenched to reduce or avoid distortion. |
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| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_EP1020536A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>EP1020536A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_EP1020536A13</originalsourceid><addsrcrecordid>eNrjZDAOTi5KLS9WyEgsy8xLVyhOzUlNLklNUchITSxRKCkCkrmpeSUKiXlAocSilNQ8oCoeBta0xJziVF4ozc2g4OYa4uyhm1qQH59aXJCYnJqXWhLvGmBoYGRgamzmaGhMhBIAqOwr-g</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Screws having selected heat treatment and hardening</title><source>esp@cenet</source><creator>SPRING, WILLIAM A ; ULHASAN, RIAZ S ; BAUER, MARK D ; STAROZHITSKY, MICHAEL</creator><creatorcontrib>SPRING, WILLIAM A ; ULHASAN, RIAZ S ; BAUER, MARK D ; STAROZHITSKY, MICHAEL</creatorcontrib><description>A carbon steel screw has one or more portions which have been selectively hardened by selective heat treatment and quenching. In one embodiment, an upper portion (24) of the screw head (12) is selectively hardened to prevent or reduce damage when torque is applied using a driving tool. The screw tip (16) may be selectively hardened for more effective penetration into a substrate. Preferably, the selectively heated portions are selectively quenched to reduce or avoid distortion.</description><edition>7</edition><language>eng ; fre ; ger</language><subject>BLASTING ; CHEMISTRY ; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS ; MECHANICAL ENGINEERING ; METALLURGY ; METALLURGY OF IRON ; MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2000</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=20000719&DB=EPODOC&CC=EP&NR=1020536A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25544,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20000719&DB=EPODOC&CC=EP&NR=1020536A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SPRING, WILLIAM A</creatorcontrib><creatorcontrib>ULHASAN, RIAZ S</creatorcontrib><creatorcontrib>BAUER, MARK D</creatorcontrib><creatorcontrib>STAROZHITSKY, MICHAEL</creatorcontrib><title>Screws having selected heat treatment and hardening</title><description>A carbon steel screw has one or more portions which have been selectively hardened by selective heat treatment and quenching. In one embodiment, an upper portion (24) of the screw head (12) is selectively hardened to prevent or reduce damage when torque is applied using a driving tool. The screw tip (16) may be selectively hardened for more effective penetration into a substrate. Preferably, the selectively heated portions are selectively quenched to reduce or avoid distortion.</description><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2000</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDAOTi5KLS9WyEgsy8xLVyhOzUlNLklNUchITSxRKCkCkrmpeSUKiXlAocSilNQ8oCoeBta0xJziVF4ozc2g4OYa4uyhm1qQH59aXJCYnJqXWhLvGmBoYGRgamzmaGhMhBIAqOwr-g</recordid><startdate>20000719</startdate><enddate>20000719</enddate><creator>SPRING, WILLIAM A</creator><creator>ULHASAN, RIAZ S</creator><creator>BAUER, MARK D</creator><creator>STAROZHITSKY, MICHAEL</creator><scope>EVB</scope></search><sort><creationdate>20000719</creationdate><title>Screws having selected heat treatment and hardening</title><author>SPRING, WILLIAM A ; ULHASAN, RIAZ S ; BAUER, MARK D ; STAROZHITSKY, MICHAEL</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1020536A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2000</creationdate><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>SPRING, WILLIAM A</creatorcontrib><creatorcontrib>ULHASAN, RIAZ S</creatorcontrib><creatorcontrib>BAUER, MARK D</creatorcontrib><creatorcontrib>STAROZHITSKY, MICHAEL</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SPRING, WILLIAM A</au><au>ULHASAN, RIAZ S</au><au>BAUER, MARK D</au><au>STAROZHITSKY, MICHAEL</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Screws having selected heat treatment and hardening</title><date>2000-07-19</date><risdate>2000</risdate><abstract>A carbon steel screw has one or more portions which have been selectively hardened by selective heat treatment and quenching. In one embodiment, an upper portion (24) of the screw head (12) is selectively hardened to prevent or reduce damage when torque is applied using a driving tool. The screw tip (16) may be selectively hardened for more effective penetration into a substrate. Preferably, the selectively heated portions are selectively quenched to reduce or avoid distortion.</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CHEMISTRY DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING ENGINEERING ELEMENTS AND UNITS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS THERMAL INSULATION IN GENERAL WEAPONS |
| title | Screws having selected heat treatment and hardening |
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