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Class Information
Number: 33/787
Name: Geometrical instruments > Distance measuring > Opposed contacts > Extensometer
Description: Subject matter having means for measuring small degrees of movement.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7347003 |
Device to measure axial displacement in a borehole |
Mar. 25, 2008 |
| 6907677 |
Stable LVDT extensometer |
Jun. 21, 2005 |
| 6367157 |
System for adjusting the track on motor vehicle wheels |
Apr. 9, 2002 |
| 6185833 |
Leaf thickness sensing device |
Feb. 13, 2001 |
| 5819428 |
Extensometer structure |
Oct. 13, 1998 |
| 5712430 |
Extensometer structure |
Jan. 27, 1998 |
| 5699624 |
High-temperature extensometer |
Dec. 23, 1997 |
| 5623768 |
Method for determining an extension of an object by means of an extensometer and extensometer for performing the method |
Apr. 29, 1997 |
| 5537754 |
Extensometer and support for an extensometer |
Jul. 23, 1996 |
| 5454174 |
Position setting device and securing arrangement for an extensometer |
Oct. 3, 1995 |
| 5430953 |
Apparatus for detecting or measuring movements in geological formations and other massive structures |
Jul. 11, 1995 |
| 5379647 |
Hole elongation testing system |
Jan. 10, 1995 |
| 5345685 |
Strata movement indicator |
Sep. 13, 1994 |
| 4998825 |
Tire cord thermal analysis testing device and method |
Mar. 12, 1991 |
| 4967485 |
Electronic feeler gauge |
Nov. 6, 1990 |
| 4884456 |
High temperature extensometer system |
Dec. 5, 1989 |
| 4879906 |
Vibration damped mounting for extensometer system |
Nov. 14, 1989 |
| 4823473 |
Extensometer for material testing machine |
Apr. 25, 1989 |
| 4607531 |
Torsional-axial extensometer with additional restraint to limit unnecessary movements |
Aug. 26, 1986 |
| 4567669 |
Blue top setting device |
Feb. 4, 1986 |
| 4537082 |
Reference frame and hold-down support system for remote supported axial torsional extensometer |
Aug. 27, 1985 |
| 4527335 |
Averaging axial-diametral strain measuring extensometer |
Jul. 9, 1985 |
| 4514905 |
Convergence extensometer for measuring mine roof subsidence |
May. 7, 1985 |
| 4336657 |
Position sensor |
Jun. 29, 1982 |
| 4275599 |
Sensor for measuring dynamic variations in strain |
Jun. 30, 1981 |
| 4211013 |
Gauge |
Jul. 8, 1980 |
| 4170068 |
Apparatus for transmission of measuring motion in gauging equipment |
Oct. 9, 1979 |
| 4133303 |
Hemostatic catheter and method |
Jan. 9, 1979 |
| 4093954 |
Motion recorder indicator |
Jun. 6, 1978 |
| 4020681 |
Portable strain gauge |
May. 3, 1977 |
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