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US 2006/0137946 A1Published application
Telescoping cylinder
AssigneeSMC Corporation of America
InventorMark Stow
Life of this patent
Estimating the term…
Abstract
A telescoping fluid cylinder having an inner rod and outer rod moving between extended and retracted positions. A first piston and second piston move the outer rod and inner rod through the cylinder in which a valve of the first piston provides for independent movement of the inner rod and outer rod.
Claims20
A fluid cylinder comprising:
- a housing;
- a first rod having a channel, the first rod configured to move between an extended and a retracted position relative to the housing;
- a second rod, located within the channel, the second rod configured to move between an extended and a retracted position relative to the first rod;
- a first piston coupled to the first rod, the first piston including a cavity;
- and
- a valve, located within the cavity of the first piston, adapted to move between an open and a closed position to enable the second rod to move relative to the first rod.
3 more elements
A fluid cylinder comprising:
- a housing;
- a first piston, including a cavity, disposed within the housing;
- a second piston, disposed within the housing, and
- a valve, located within the cavity of the first piston, adapted to move between an open and a closed position to enable the second piston to move relative to the first piston.
1 more element
A fluid cylinder comprising:
- a housing including an interior region having a first dimension;
- a cover, including a cavity having a second dimension less than the first dimension, coupled to the housing;
- a first piston, located within the housing, including a dimension to prevent the first piston from being disposed within the cavity of the cover.
The fluid cylinder of clam 15, further comprising a valve disposed within the bore of the first piston.
A fluid cylinder comprising:
- a housing including an interior region having a first dimension;
- a cover, including a cavity having a second dimension less than the first dimension, coupled to the housing;
- an first piston disposed within the housing;
- and
- a second piston, disposed within the housing, including a dimension to prevent the second piston from being disposed within the first piston.
2 more elements
Dependencies are inferred from the claim text.