| Patents for Ronald Ballantyne |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 4,722,293 | Feb. 02, 1988 | D. Foster, R. Ballantyne | Integrated winch and windlass | |
| 4,819,555 | Apr. 11, 1989 | R. Ballantyne, L. Malashenko | Hydraulic press with adjustable platen spacing | hydraulic metalworking presses |
| 4,828,474 | May 09, 1989 | R. Ballantyne | Hydraulic cylinder device for platen spacing indication and control | hydraulic metalworking presses |
| 4,836,125 | Jun. 06, 1989 | R. Ballantyne, M. Murray | Anchoring system for floating structure | |
| 4,841,898 | Jun. 27, 1989 | R. Ballantyne | Anchoring system for floating structure | |
| 4,862,821 | Sep. 05, 1989 | R. Ballantyne | Mechanism for tensioning a moving chain | boats and ships |
| 5,156,782 | Oct. 20, 1992 | R. Ballantyne | Maintaining press platens in parallel relationship | hydraulic metalworking presses |
