| |
 |
|
Class Information
Number: 73/39
Name: Measuring and testing > With fluid pressure > Fluid pressure brake system or unit
Description: Subject matter, for the testing of the operating or control mechanism of fluid pressure operated brakes (e.g., air or hydraulic types for motor vehicles, trains, etc.).
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7174778 |
Control device for a motor vehicle |
Feb. 13, 2007 |
| 6971724 |
Method and apparatus for simulating a failed heavy vehicle air brake system |
Dec. 6, 2005 |
| 6901789 |
Method for determining parameters |
Jun. 7, 2005 |
| 6837550 |
Brake system diagnostic using a hand-held radio device |
Jan. 4, 2005 |
| 6766681 |
Malfunction detection device of a bellows type accumulator for pressurized fluid |
Jul. 27, 2004 |
| 6530261 |
Semi-truck trailer brake test device, system and method |
Mar. 11, 2003 |
| 6446490 |
Method and device for determining the pressure in brake systems |
Sep. 10, 2002 |
| 6425282 |
Portable single car test device |
Jul. 30, 2002 |
| 6374193 |
Method and device for monitoring the functioning of a compressor |
Apr. 16, 2002 |
| 6334354 |
Portable single car charging and test device |
Jan. 1, 2002 |
| 6327894 |
Portable single car test device |
Dec. 11, 2001 |
| 6269682 |
Portable single car test device |
Aug. 7, 2001 |
| 6227625 |
Two way field tester for EOT device |
May. 8, 2001 |
| RE37151 |
Method and apparatus for testing a fluid pressure apparatus |
May. 1, 2001 |
| 6081767 |
Method and device for determining the amount of undissolved gas in a hydraulic system |
Jun. 27, 2000 |
| 5936154 |
Driver controlled air system moisture removal and pre-trip inspection system |
Aug. 10, 1999 |
| 5936153 |
Apparatus and method for testing brake actuator units used in railroad cars |
Aug. 10, 1999 |
| 5908983 |
Method and apparatus for testing the brake system of a vehicle |
Jun. 1, 1999 |
| 5898102 |
Method for performing a brake pipe leakage test |
Apr. 27, 1999 |
| 5866811 |
End of train device |
Feb. 2, 1999 |
| 5808909 |
Electronic brake control valve tester for rail cars and trains |
Sep. 15, 1998 |
| 5767389 |
Method and apparatus for testing a fluid pressure apparatus |
Jun. 16, 1998 |
| 5767397 |
Method and apparatus for testing the brake system of a vehicle |
Jun. 16, 1998 |
| 5747685 |
Automated terminal test procedure |
May. 5, 1998 |
| 5714684 |
Test plat adapter for manual single car tester |
Feb. 3, 1998 |
| 5709436 |
Arrangement for connecting a test device to a railroad car brake control valve device |
Jan. 20, 1998 |
| 5668314 |
Apparatus for testing vehicle air brakes |
Sep. 16, 1997 |
| 5559281 |
Test connector for accessing compressed air at test ports of a railroad brake control valve |
Sep. 24, 1996 |
| 5503011 |
Test connector for automatic test device |
Apr. 2, 1996 |
| 5357800 |
Method for air testing hydraulic brake components |
Oct. 25, 1994 |
| 5141061 |
Method and equipment for drilling control by vibration analysis |
Aug. 25, 1992 |
| 5113694 |
Modified pressure regulator valve for single car testing device |
May. 19, 1992 |
| 4870390 |
Device for detecting leakage of precharged gas from gas-type accumulator |
Sep. 26, 1989 |
| 4847770 |
Initial terminal tester |
Jul. 11, 1989 |
| 4513604 |
Method and apparatus for indicating leakage in compressed air line |
Apr. 30, 1985 |
| 4440015 |
Locomotive air brake system testing device |
Apr. 3, 1984 |
| 4361362 |
Adapter for testing for leakage in brake force regulating devices in fluid pressure operable brake systems |
Nov. 30, 1982 |
| 4156864 |
Pressure switch checking device for locomotives |
May. 29, 1979 |
| 4100792 |
Apparatus for the testing of a brake system |
Jul. 18, 1978 |
| 4076322 |
Electro-pneumatic brake system with valve actuating checking circuit |
Feb. 28, 1978 |
| 4062224 |
Brake tester |
Dec. 13, 1977 |
| 3948083 |
Fluid pressure apparatus |
Apr. 6, 1976 |
| 3945684 |
AB freight valve test rack |
Mar. 23, 1976 |
|
|
|
