Patent · US Expired

System for operation of a direct drive dual drum winch

US4555092A · kind A · utility

6Cited by
9References
5Claims
0Family size

Inventor

Key dates

Filing dateMay 27, 1983
Grant dateNov 26, 1985
Priority date—
Expiry dateMay 27, 2003

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66D1/08
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

For use in service and maintenance of oil and gas (or water) wells, a system for operating a truck mounted direct drive dual drum winch. Each drum is independently driven by a direct coupled radial piston hydraulic motor. The system includes an improved source of hydraulic power connected to the drum motors through improved piping and valving for selection of drum functions (raise or hoist, lower or drop, or free fall). The system also includes an improved control panel, movable and positionable by the operator for precise and safe control of selected drum functions using pneumatic power.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.