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  Patent History
  • Application
    US 11/302048 2005-12-13
  • Publication
    US 2007131453 2007-06-14

published patent: Automatic SPT monitor

TitleAutomatic SPT monitor
Priority Date2005-12-13 US 11/302048
Inventors
Issue Date2007
Citation
US Published patent application US 2007131453. Washington, DC: US Patent and Trademark Office (USPTO), 2007 How to Cite?
AbstractAn apparatus is used with an impact hammer penetration assemble such as standard penetration test (SPT) in geotechnical engineering. The impact hammer penetration assembly comprises a penetration sample, a series of rods coupled together and an impact hammer apparatus. The drop of the hammer from a constant height hits the coupled rods and sampler in series and forces the sampler deeper into the ground. The apparatus includes a tip depth transducer and sampler to output a first electrical signal that is a function of the sampler tip position. A shock force transducer communicates the axial shock force in the rod to output a second electrical signal that is a function of the rod shock force and hammer blows.; A shock penetration transducer communicates the movement of the coupled rods and sampler to output a third electrical signal that is a function of the sampler penetration due to the hammer blows. A micro-process controller monitors and processes the first, second and third signals in real time.
Persistent Identifierhttp://hdl.handle.net/10722/176935

 

DC FieldValueLanguage
dc.date.accessioned2012-11-30T08:38:47Z-
dc.date.available2012-11-30T08:38:47Z-
dc.date.issued2007-
dc.identifier.citationUS Published patent application US 2007131453. Washington, DC: US Patent and Trademark Office (USPTO), 2007en_HK
dc.identifier.urihttp://hdl.handle.net/10722/176935-
dc.description.abstractAn apparatus is used with an impact hammer penetration assemble such as standard penetration test (SPT) in geotechnical engineering. The impact hammer penetration assembly comprises a penetration sample, a series of rods coupled together and an impact hammer apparatus. The drop of the hammer from a constant height hits the coupled rods and sampler in series and forces the sampler deeper into the ground. The apparatus includes a tip depth transducer and sampler to output a first electrical signal that is a function of the sampler tip position. A shock force transducer communicates the axial shock force in the rod to output a second electrical signal that is a function of the rod shock force and hammer blows.; A shock penetration transducer communicates the movement of the coupled rods and sampler to output a third electrical signal that is a function of the sampler penetration due to the hammer blows. A micro-process controller monitors and processes the first, second and third signals in real time.en_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License For Public Patent Documentsen_US
dc.titleAutomatic SPT monitoren_HK
dc.typePatenten_US
dc.description.naturepublished_or_final_versionen_US
dc.contributor.inventorYue Zhong Qien_HK
dc.contributor.inventorLee, CFen_HK
dc.contributor.inventorLee Peter Kai Kwongen_HK
dc.contributor.inventorTham Leslie Georgeen_HK
patents.identifier.applicationUS 11/302048en_HK
patents.description.assigneeTHE UNIVERSITY OF HONG KONGen_HK
patents.description.countryUnited States of Americaen_HK
patents.date.publication2007-06-14en_HK
patents.date.application2005-12-13en_HK
patents.date.priority2005-12-13 US 11/302048en_HK
patents.description.ccUSen_HK
patents.identifier.publicationUS 2007131453en_HK
patents.relation.familyCN 1982645 (A) 2007-06-20en_HK
patents.relation.familyHK 1105675 (A1) 2011-09-23en_HK
patents.relation.familyUS 2007131453 (A1) 2007-06-14en_HK
patents.relation.familyUS 7404455 (B2) 2008-07-29en_HK
patents.description.kindA1en_HK
patents.typePatent_publisheden_HK

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