| 6978491 |
Inflatable urinal for attachment to a toilet |
— |
2005-12-27 |
| 6502518 |
Converted multiple hopper rail car and method for making same |
— |
2003-01-07 |
| 5181474 |
Wood chip railway car constructed by converting a standard box car and method of conversion |
— |
1993-01-26 |
| 5060579 |
Sliding hopper outlet gate with plastic upper surface for smooth sliding and for sealing the outlet |
James W. Johnson, Francis R. Schultz, Wayne A. Rhodes |
1991-10-29 |
| 4948185 |
Hatch cover assembly |
— |
1990-08-14 |
| 4941695 |
Hatch cover assembly |
— |
1990-07-17 |
| 4897671 |
Integrated optic print head |
Amaresh Mahapatra, Elias Snitzer |
1990-01-30 |
| 4696088 |
Method of converting a hopper type of rail car to accept a wider output gate |
— |
1987-09-29 |
| 4696237 |
Multiple hopper rail car with offset vertical weld from conversion |
— |
1987-09-29 |
| 4695207 |
Pneumatic gate operator and outlet cap |
— |
1987-09-22 |
| 4690070 |
Hatch cover structure |
— |
1987-09-01 |
| 4655365 |
Hatch cover lock |
— |
1987-04-07 |
| 4622902 |
Hatch cover and locking structure |
— |
1986-11-18 |
| 4589346 |
Axle stop arrangement for single axle wheel truck for a skeleton type railway car |
— |
1986-05-20 |
| 4570807 |
Railway car underframe |
Robert J. Kunst |
1986-02-18 |
| 4555033 |
Slackless non-cushioned drawbar arrangement for railway car underframe |
— |
1985-11-26 |
| 4359003 |
Railway car center filler |
Bhaskara R. Mutyala |
1982-11-16 |
| 4353314 |
Box car corner post arrangement |
Bhaskara R. Mutyala |
1982-10-12 |
| 4280596 |
Air brake arrangement for center sill-less hopper cars |
— |
1981-07-28 |
| 4262601 |
Cam actuated railway hopper car lock mechanism |
— |
1981-04-21 |
| 4259036 |
Hopper car door locking arrangement |
— |
1981-03-31 |
| 4232989 |
Cam actuated railway hopper car door operating mechanism |
— |
1980-11-11 |
| 4194450 |
Railway hopper car door operating mechanism |
— |
1980-03-25 |
| 4183179 |
Sliding door and door guide arrangement for a railway passenger car compartment |
Jack E. Gutridge, Walter J. Marulic |
1980-01-15 |
| 4181336 |
Hopper car cam lock door operating mechanism |
— |
1980-01-01 |