Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Patent
1985-10-11
1987-08-18
Look, Edward K.
Power plants
Pressure fluid source and motor
With control means for structure storing work driving energy
60478, 60484, 60486, 91189R, 91517, 212250, 294 6823, 414726, F16D 3102
Patent
active
046868283
ABSTRACT:
The invention contemplates a hydraulically operated twin-cable suspension for a clamshell or the like load-handling device. In a preferred embodiment, a charged accumulator is effectively a counterweight and is the source of all hydraulic fluid needed for the full range of actuation of two traction cylinders, one for each of the respective cables. Two power integrators are employed: one is interposed between the accumulator and one of the traction cylinders, and the other is interposed between the accumulator and the other traction cylinder; hydraulic control interconnections between the respective integrator circuits enable load sharing by both cables and simplified single-lever control of plural clamshell functions, including (a) an automated closing dig into loadable material and (b) a quick opening for load discharge.
REFERENCES:
patent: 3238722 (1966-03-01), Berkman et al.
patent: 3479077 (1969-11-01), Martin et al.
patent: 3971215 (1976-07-01), Baron et al.
patent: 4098377 (1978-07-01), Callaghan
patent: 4161135 (1979-07-01), Garlinghouse
patent: 4231868 (1980-11-01), Lado
patent: 4546607 (1985-10-01), Kime
Dynamic Hydraulic Systems, Inc.
Look Edward K.
LandOfFree
Hydraulically operated clamshell device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hydraulically operated clamshell device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hydraulically operated clamshell device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1110256