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US 5,167,058 AGranted
Continuous reciprocating tube-stripping apparatus
AssigneeArmstrong & Sons
InventorRobert S. Armstrong, Jr.
Life of this patent
Estimating the term…
Abstract
A substantially continuous tube-pulling operation is performed through the use of a plurality of pulling deivces, each of which is designed to partially pull a tube from its associated holder. By operating the pulling devices in a consecutive and repetitive fashion, the tube can be completely stripped from the holder in a single continuous operation.
Claims14
Apparatus for pulling a tube from a holder, comprising a housing having a passageway extending therethrough along a center longitudinal axis thereof, said passageway being sized and shaped so as to allow the passage of the tube as the tube is pulled away from the holder;
- first pulling means, positioned within said housing such that said passageway extends through said first pulling means, for pulling the tube in a first direction away from the holder, said first pulling means including a first cylinder and a first piston mounted within said first cylinder for reciprocating movement in said first direction and a second direction opposite to said first direction;
- first engaging means mounted on said first pulling means for engaging the tube when said first pulling means is pulling the tube in said first direction and for disengaging the tube when said first pulling means is moving in said second direction;
- second pulling means, positioned within said housing such that said passageway extends through said second pulling means, for pulling the tube in said first direction, said second pulling means including a second cylinder and a second piston mounted within said second cylinder for reciprocating movement in said first and second directions;
- second engaging means mounted on said second pulling means for engaging the tube when said second pulling means is pulling the tube in said first direction and for disengaging the tube when said second pulling means is moving in said second direction;
- and controlling means for controlling said first and second pulling means such that said first and second pulling means are successively moved in said first direction and such that said second pulling means is moved in said second direction as said first pulling means is moved in said first direction and said first pulling means is moved in said second direction as said second pulling means is moved in said first direction, whereby the tube is pulled away from the holder in a substantially continuous fashion.
2 more elements
Dependencies are inferred from the claim text.