Patent ID: 7544902
Filing Date: 2009-06-09
Classification: B66F,F15B,G01G

Abstract:
1. A lift measurement system for determining a position of a load during a lift operation including a stationary cylinder and an associated piston that is extendable and retractable with respect to the cylinder at a load support zone of the load to correspondingly raise and lower the load, the system comprising: a display including a scale and enclosing an indicator that is movable with respect to the scale; and a linkage operatively coupled at one end to the load support zone, and connected at a second end to the display, wherein the linkage transfers movement of the load at the load support zone to the indicator to move the indicator relative to the scale; wherein the linkage comprises a cable assembly having a proximal end attached to the load and a distal end attached to the indicator; wherein the cable assembly further comprises a cable member connected between the load and the indicator; wherein the cable member is surrounded by a stationary sleeve; wherein the stationary sleeve is connected at one end to the cylinder, and at a second end to the display; and wherein the stationary sleeve is connected to the cylinder via a bracket attached to the cylinder.