E02F3/141

GRABBING ATTACHMENTS FOR HEAVY MACHINERY
20180216311 · 2018-08-02 ·

In one embodiment, a tractor bucket attachment may include an attachment head and a loop of flexible cable. The attachment head may include a mounting bracket and first and second cable attachment mechanisms. The mounting bracket may be configured to secure the attachment head to a tractor bucket, the tractor bucket having a front edge. The loop of flexible cable may have a first end and a second end, the first end being attached to the first cable attachment mechanism and the second end being attached to the second cable attachment mechanism. The loop of flexible cable may be configured to ensnare a bale against the front edge of the tractor bucket.

System and method for controlling load dependent valve flow with an overruning load
12297623 · 2025-05-13 ·

A method for controlling load dependent valve flow rate in a presence of an overrunning load in a bucket includes receiving a measured pressure from and/or to a hydraulic valve, and the hydraulic valve is coupled to an actuator coupled to the bucket. The method includes calculating a load pressure on the actuator based on the measured pressure. The method includes receiving a first valve command for actuating the actuator to lower the bucket, the first valve command being associated with a desired valve flow rate and a desired maximum speed of the actuator. The method includes providing a second valve command based on a last calculated load pressure before receiving the first valve command, wherein the second valve command adjusts a valve opening area of the hydraulic valve so that a speed of the actuator corresponds to a maximum speed of the actuator for the last calculated load pressure.