Patent ID: 6029559
Filing Date: 2000-02-29
Classification: B66C,F15B

Abstract:
A telescoping system, comprising:a first tele cylinder including a first cylinder, a first rod having a first and second end, a first piston head connected to said first end of said first rod and disposed in said first cylinder, said second end of said first rod including first, second and third ports;said first rod, said first piston head and said first cylinder defining a first chamber;said first cylinder and said first piston head defining a second chamber;said first rod and said first piston head including a first passageway communicating said first port and said first chamber and a second passageway communicating said third port and said second chamber;said first cylinder and said first rod including a third passageway communicating with said second port;said first cylinder including a fourth passageway communicating with said first chamber;a second tele cylinder, structurally separate from said first tele cylinder, including a second cylinder, a second rod having a third and fourth end, a second piston head connected to said third end of said second rod and disposed in said second cylinder, said fourth end of said second rod including a fourth and fifth port;a first line connecting said fourth port and said third passageway;a second line connecting said fifth port and said fourth passageway;said second rod, said second piston head and said second cylinder defining a third chamber;said second cylinder and said second piston head defining a fourth chamber;said second rod including a fifth passageway communicating said third chamber and said fifth port; andsaid second rod and said second piston head including a sixth passageway communicating said fourth port and said fourth chamber.