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| Number | Title | Issue Date |
| 5964077 | Dual accumulator hydraulic flotation system for crop harvester The hydraulic flotation circuit for the header of a windrower or other harvester utilizes a pair of precharged gas accumulators that are always in open communication with the flotation cylinders of the circuit. One of the accumulators is set at a relative... | 10/12/1999 |
| 5906089 | Slave cylinder stabilizer for harvester header The windrower or other harvester has a hydraulic lift circuit for its header that includes a pair of double-acting cylinders which operate in concert to raise the header and provide a solid, lower limit for downward swinging of the header. The two cylinde... | 05/25/1999 |
| 5809780 | Hydraulic control valve A hydraulic control valve has a two position body shifted by rotation. The shaft of the valve body carries a drive wheel segment extending through an arc that corresponds to the shift angle of the valve. A spring is provided to bias, at least in the final... | 09/22/1998 |
| 4285641 | Hydraulic pump and valve A hydraulic pump and valve unit is disclosed which is particularly useful in a system using a hydraulic cylinder for raising and lowering the cab of a truck. The unit includes a pump which is connected to a valve intake chamber which, in turn, opens axial... | 08/25/1981 |
