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Class Information
Number: 73/81
Name: Measuring and testing > Hardness > By penetrator or indentor
Description: Subject matter wherein hardness is measured in terms of its resistance to a penetrator or to indentation.


Sub-classes under this class:

Class Number Class Name Patents
73/82 Impact type 90
73/85 Penetrator element 44
73/84 Soil bearing capacity 113
73/83 With successive minor and major load 35


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
7621173 Nano-identation ultrasonic detecting system and method thereof Nov. 24, 2009
7568381 Apparatus and method for surface property measurement with in-process compensation for instrument frame distortion Aug. 4, 2009
7565841 Operating frequency selection method for hardness measurement system, operating frequency selection apparatus, and hardness measurement system Jul. 28, 2009
7565831 Production method of indentation curve and hardness test method Jul. 28, 2009
7543519 Device for high-precision generation and measurement of forces and displacements Jun. 9, 2009
7487051 Evaluating method of the fracture toughness using the continuous indentation method Feb. 3, 2009
7472603 Evaluating method of the residual stress determining method using the continuous indentation method Jan. 6, 2009
7458253 Method for evaluating fixing member and fixing belt and thermal fixing roller Dec. 2, 2008
7454960 Hardness tester with a loading structure of the indenter independent of the stress frame connecting the indenter to the anvil Nov. 25, 2008
7424822 Micro-hardness measurement method and micro-hardness meter Sep. 16, 2008
7415900 Blast pressure gauge Aug. 26, 2008
7412870 Method and apparatus for dynamic impact testing Aug. 19, 2008
7380443 Hardness testing apparatus Jun. 3, 2008
7354617 Fixing belt and method for evaluating it Apr. 8, 2008
7352271 Probe and contour measuring instrument Apr. 1, 2008
7316155 Test table for measuring lateral forces and displacements Jan. 8, 2008
7302831 Scratch testing device Dec. 4, 2007
7287420 Method of measuring properties of interfacial adhesion of medical device coatings Oct. 30, 2007
7287419 Method of measuring interfacial adhesion properties of stents Oct. 30, 2007
7287418 Method of measuring interfacial adhesion properties of electronic structures Oct. 30, 2007
7232415 System and method for noninvasively evaluating a limb suspected of compartment syndrome Jun. 19, 2007
7194896 Surface hardness distribution measuring method and apparatus Mar. 27, 2007
7162919 Blast pressure gauge Jan. 16, 2007
7162932 Method for determining the modulus of elasticity of paper Jan. 16, 2007
7121136 Hardness testing apparatus Oct. 17, 2006
7102517 Test fixture for evaluating RF identification system and related methods Sep. 5, 2006
7097625 System and method for noninvasively evaluating a limb suspected of compartment syndrome Aug. 29, 2006
7096720 Hardness tester Aug. 29, 2006
7066012 Hardness testing device for use with a bicycle tire Jun. 27, 2006
7040146 Soil or snow probe May. 9, 2006
7024923 Method for evaluating fixing member and fixing belt and thermal fixing roller Apr. 11, 2006
7021125 Process and apparatus for checking rod-like articles, in particular cigarettes Apr. 4, 2006
6993959 System and method for the analysis of atomic force microscopy data Feb. 7, 2006
6983643 Ground assessment Jan. 10, 2006
6945097 Characteristic strain and fracture resistance for scratch independently of indenter geometry Sep. 20, 2005
6883367 Method for measuring elastic properties Apr. 26, 2005
6778916 Ball indenter utilizing FEA solutions for property evaluation Aug. 17, 2004
6755075 Ultra micro indentation testing apparatus Jun. 29, 2004
6725708 Impression forming mechanism and method, and hardness testing apparatus and method Apr. 27, 2004
6718820 Apparatus for indentation test and method for measuring mechanical properties using it Apr. 13, 2004
6721667 Method and system for measuring properties of deformable material specimens Apr. 13, 2004
6691564 Hardness tester Feb. 17, 2004
6679130 Instrument for high throughput measurement of material physical properties of a plurality of samples Jan. 20, 2004
6659967 System and method for noninvasively evaluating a limb suspected of compartment syndrome Dec. 9, 2003
6643599 Automated machine and method for fruit testing Nov. 4, 2003
6634217 Live line method and tool for identifying electrical conductors Oct. 21, 2003
6612150 Method and device for measuring abrasive properties of paper and other sheet materials Sep. 2, 2003
6581446 Determination of adhesion strength of HVOF coating by spherical indentation Jun. 24, 2003
6568250 Apparatus and method for determining residual stress May. 27, 2003
6553814 Method and device for determining the hardness/elasticity and/or other properties of vegetables or fruit Apr. 29, 2003

1 2 3 4 5


 
 
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