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Class Information
Number: 213/43
Name: Railway draft appliances > Cushioned > Springs > Fluid
Description: Wherein devices of the class indicated the spring is the compression of a pneumatic fluid or dashpot action of a liquid fluid.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7311215 |
Positional variable orifice pin for hydraulic pressure control in a draft gear |
Dec. 25, 2007 |
| 7150368 |
Cushioning device having an electrically actuated lockout |
Dec. 19, 2006 |
| 6923331 |
High capacity draft gear |
Aug. 2, 2005 |
| 6814348 |
Traction/compression buffer for coupling devices on rail and wheel-mounted vehicles |
Nov. 9, 2004 |
| 6669180 |
Gas-hydraulic shock absorber assembly |
Dec. 30, 2003 |
| 6357612 |
Rail car cushioning device and method for positioning same |
Mar. 19, 2002 |
| 6279765 |
Railcar cushioning device with internal spring |
Aug. 28, 2001 |
| 6199708 |
Railcar cushioning device with internal elastomeric spring |
Mar. 13, 2001 |
| 5871109 |
Railcar cushion device preload valving systems |
Feb. 16, 1999 |
| 5845796 |
Elastomer spring/hydraulic shock absorber cushioning device |
Dec. 8, 1998 |
| 5826735 |
Railcar cushion device valving systems |
Oct. 27, 1998 |
| 5762214 |
Railcar shock absorber backstop |
Jun. 9, 1998 |
| 5746335 |
Double acting center-of-car cushioning device |
May. 5, 1998 |
| 5676265 |
Elastomer spring/hydraulic shock absorber cushioning device |
Oct. 14, 1997 |
| 5653425 |
Energy absorbers |
Aug. 5, 1997 |
| 5642823 |
Railcar shock absorber with neutral position |
Jul. 1, 1997 |
| 5586669 |
Cushioning unit fault detector |
Dec. 24, 1996 |
| 5551581 |
Single acting sliding sill cushioning unit |
Sep. 3, 1996 |
| 5487480 |
Hydro-pneumatic cushioning device |
Jan. 30, 1996 |
| 5415303 |
Railcar cushion unit |
May. 16, 1995 |
| 5388711 |
Rail car double acting piston shock absorber |
Feb. 14, 1995 |
| 5373952 |
Pneumatic shock absorber in compound trolley conveyor |
Dec. 20, 1994 |
| 5076451 |
Hydraulic cushioning unit |
Dec. 31, 1991 |
| 5025938 |
Rail car cushion slider valve |
Jun. 25, 1991 |
| 4953727 |
Piston and shaft assembly of railroad end-of-car cushioning devices and method of repairing same |
Sep. 4, 1990 |
| 4805517 |
Gas return railway car hydraulic cushioning unit and method of converting a spring return unit |
Feb. 21, 1989 |
| 4739889 |
Railway cushioning apparatus |
Apr. 26, 1988 |
| 4660687 |
Energy absorbers |
Apr. 28, 1987 |
| 4601461 |
Lading protection device |
Jul. 22, 1986 |
| 4562929 |
Backstop assembly for use with cushioning device in sill of railway car |
Jan. 7, 1986 |
| 4334624 |
Draft gear locking device |
Jun. 15, 1982 |
| 4305514 |
Plate-type friction draft gear |
Dec. 15, 1981 |
| 4304338 |
Center-of-car cushioning device with gas return |
Dec. 8, 1981 |
| 4261471 |
Fabricated backstop for railway cars |
Apr. 14, 1981 |
| 4232793 |
Car coupling arrangement for railway passenger cars |
Nov. 11, 1980 |
| 4205753 |
Hydraulic buffer for a vehicle |
Jun. 3, 1980 |
| 4113113 |
Valve closure for railway car cushioning device |
Sep. 12, 1978 |
| 4043545 |
Sealed cushioning unit |
Aug. 23, 1977 |
| 4040523 |
Railway car cushioning device |
Aug. 9, 1977 |
| 4026418 |
Hydraulic cushioning unit with a gas return |
May. 31, 1977 |
| 4002244 |
Buffer, particularly suitable for use in railway vehicles |
Jan. 11, 1977 |
| 3999745 |
Snubber |
Dec. 28, 1976 |
| 3976287 |
Shock isolator construction |
Aug. 24, 1976 |
| 3944270 |
Hydropneumatic shock absorbing mounted bumper |
Mar. 16, 1976 |
| 3938851 |
Recoil mechanism |
Feb. 17, 1976 |
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