 |
|
 |
| |
 |
|
Class Information
Number: 33/544.2
Name: Geometrical instruments > Gauge > Internal > Earth cavity or tube > Having means to actuate probe
Description: Subject matter including means to move the contact member into contact with an object to be gauged.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7409774 |
Borehole tool |
Aug. 12, 2008 |
| 6560888 |
Internal shim |
May. 13, 2003 |
| 6339886 |
Remotely measured caliper for wellbore fluid sample taking instrument |
Jan. 22, 2002 |
| 6084402 |
Flexible probe for insertion into an auxiliary pipe extending from a main pipe |
Jul. 4, 2000 |
| 6065218 |
Method and apparatus for logging non-circular boreholes |
May. 23, 2000 |
| 5767401 |
Device for surveying subterranean spaces or caverns |
Jun. 16, 1998 |
| 5479721 |
Method and apparatus for measuring the length (MIU) of the internal taper of an internally upset drill pipe tube |
Jan. 2, 1996 |
| 5065524 |
Device for measuring the internal diameter of tubes |
Nov. 19, 1991 |
| 4986004 |
Method and apparatus for measuring the configuration of cylinder bores in workpieces |
Jan. 22, 1991 |
| 4866978 |
Pipe inspection method and device |
Sep. 19, 1989 |
| 4835876 |
Instrument chassis and body supports for pipeline survey pig |
Jun. 6, 1989 |
| 4811792 |
Well tool stabilizer and method |
Mar. 14, 1989 |
| 4673890 |
Well bore measurement tool |
Jun. 16, 1987 |
| 4540941 |
Casing collar indicator for operation in centralized or decentralized position |
Sep. 10, 1985 |
| 4530161 |
Caliper tool using magnetostrictive displacement transducer |
Jul. 23, 1985 |
| 4524526 |
Apparatus and method for inertial measurement of pipeline deflection |
Jun. 25, 1985 |
| 4481816 |
Pipeline gauging vehicles |
Nov. 13, 1984 |
| 4454655 |
Drill pipe measuring tool |
Jun. 19, 1984 |
| 4307514 |
Bore diameter measurement gage |
Dec. 29, 1981 |
| 4290204 |
Plug gauge for checking internal geometric dimensions |
Sep. 22, 1981 |
| 4265025 |
Inspection probe |
May. 5, 1981 |
| 4262425 |
Self-adjusting inspection apparatus |
Apr. 21, 1981 |
| 4255860 |
Calibrating apparatus for inside and outside surfaces and alignment of pipe sections |
Mar. 17, 1981 |
| 4121345 |
Linearly corrected articulated linkage for wellbore measuring instrument |
Oct. 24, 1978 |
| 3964171 |
Device for steplessly detecting the ovalizations and the projections on two orthogonal planes of the curved geometrical configuration of a submerged pipeline |
Jun. 22, 1976 |
| 3959887 |
Device for precision measurement of internal diameters |
Jun. 1, 1976 |
| 3940855 |
Pipeline pig |
Mar. 2, 1976 |
|
|
|
 |
|
 |
|
| |
Randomly Featured Patents |
|
