System for lifting and moving an object
OwnerFrancois Delaneyinventor
Life of this patent
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Abstract
A system for lifting and moving an object comprising a vertical post, having a lifting arm pivotably mounted thereon. Said vertical post comprising a piston connected to a carriage slidably mounted on said lifting arm, such that operation of said piston can lower and raise said carriage.
Claims8
Its rising movement is made possible with low air pressure at four pounds per square inches (4 PSI).
The sealing principle of the counterweight (piston) is to use air friction when it is moved through a small crack. This principle allows the creation of air pressure below the piston using very little air.
Another advantage with this principle is the fact that the small air leak created causes the piston to stay perfectly centered in the tube and eliminates wearing effect.
Along with insuring guiding and sealing, the use of this leaking system eliminates the need to pressurize the top of the piston or the use of air exhaust valve. This system requires only the reduction or closing of the air intake to allow the counterweight to lower simply by gravity thus rising the object.
It is impossible to abuse or break this equipment due to the fact that it can only lift 99% of the counterweight. Friction of mechanical elements is the reason for the 1% loss.
Using the supporting post as the compression chamber allows 360 degree continuous movement.
The closesness of the pulleys supporting the carriage system produce a breaking effect in the event the operator would try to rise too high the counterweight.
The counterweight can be of variable weight:
- It is a container equipped with a trap on the bottom that allows rapid emptying.
- This container is open on top. A tank installed on top of the equipment can be filled with granular material or liquid using quiet moments. A trap on its bottom is used to fill the counterweight container as required.
- The method of bringing granular material or liquid can be achieved by using a ¼ HP small conveyor system with jars in a continuous movement.
- Management of the counterweight can be made possible by using liquids (water, oil, mercury) or granular material (sand, steel balls, polymeric balls).
- If mercury is chosen, everything must be done in closed circuit in order to avoid possible environment contamination. It must be noted that mercury has the advantage of being very compact althought extremely expensive.
Dependencies are inferred from the claim text.