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Class Information
Number: 73/796
Name: Measuring and testing > Specimen stress or strain, or testing by stress or strain application > By loading of specimen (e.g., strength of material test) > Plural diverse stress-strain tests or composite loads > Tension-compression
Description: Subject matter where the load applied may be either a push or pull.

Sub-classes under this class:

Class Number Class Name Patents
73/797 Alternating 10
73/798 Hydraulic or pneumatic actuation 31

Patents under this class:

Patent Number Title Of Patent Date Issued
8132447 Universal testing machine Mar. 13, 2012
7757564 Material testing machine Jul. 20, 2010
7510866 Hybrid bioreactor for cell culture Mar. 31, 2009
7509874 Apparatus for the testing of elastic textile leg garments Mar. 31, 2009
7441465 Measurement of properties of thin specimens based on experimentally acquired force-displacement data Oct. 28, 2008
7409869 Resistance test method Aug. 12, 2008
7038592 Method and device for detecting physical bottom contact for objects on a sea bottom May. 2, 2006
7000484 Load beam apparatus operative to prevent improper operation due to off axis loads Feb. 21, 2006
6925890 Anchor chain load measurement arrangement Aug. 9, 2005
6679124 Statistically rigid and dynamically compliant material testing system Jan. 20, 2004
6666097 Method and device for measuring pushing and pulling forces Dec. 23, 2003
6647802 Creep testing fixture and method Nov. 18, 2003
6553320 Method for testing the stability of vertically braced masts Apr. 22, 2003
6446510 Force transducer assembly Sep. 10, 2002
6341529 Method and apparatus for measuring substrate surface cleanliness Jan. 29, 2002
6339962 Force sensor Jan. 22, 2002
6314376 Method and device for checking the solidity of anchored standing masts Nov. 6, 2001
6308577 Circuit and method of compensating for membrane stress in a sensor Oct. 30, 2001
6205862 Viscoelasticity measurement apparatus Mar. 27, 2001
6176139 Compression-tension transducer, especially for electromechanical braking systems Jan. 23, 2001
6079278 Ball spline joint slackness measuring method and measuring apparatus Jun. 27, 2000
6055866 Process and device for checking the solidity of vertically anchored masts May. 2, 2000
6029504 Tube loading apparatus Feb. 29, 2000
5948994 Multi-functional test machine Sep. 7, 1999
5950142 Monitoring tension in tensioned longitudinally moving elongate elements Sep. 7, 1999
5798463 Self-contained constant stress/constant strain test fixture Aug. 25, 1998
5767402 Material testing system having DC brushless linear motor Jun. 16, 1998
5706698 Knitted yarns durability tester with vibration unit Jan. 13, 1998
4869112 Screw-driven actuator for test frame Sep. 26, 1989
4464937 Extensometer readout circuit Aug. 14, 1984
4227400 Measuring cigarette characteristics during pyrolysis smoking Oct. 14, 1980
4018080 Device for tensioning test specimens within an hermetically sealed chamber Apr. 19, 1977
3940974 Electrically compensated sensor Mar. 2, 1976

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