Swaging tool for axially swaged fittings
AssigneeThe Deutsch Company
InventorsArthur J. Hyatt, Biing-Kwang K. Hsieh, Earl T. Wootton
Life of this patent
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Abstract
A swaging tool for swaging an axially swaged fitting for connecting tubes and pipes is disclosed. The tool comprises a housing and a piston movable in opposite axial directions within the housing. A first engaging member in the form of a U-shaped yoke is formed on the outer surface of the housing. A second engaging member, also in the form of a U-shaped yoke, is formed on the outer surface of the piston and is adapted to slide within slots in the outer surface of the housing. Both of these yokes are configured to allow each yoke to engage a portion of the fitting to swage it when the yoke of the second engaging member is moved toward the yoke of the first engaging member.
Claims21
A swaging tool for swaging a fitting having a sleeve for receiving a tube, and a swaging ring such that axial movement of the ring over the sleeve causes the ring to apply a radial force to the sleeve to thereby swage the sleeve to the tube, the swaging tool comprising:
- (a) a housing having an inner surface and an outer surface;
- (b) a piston movable in opposite axial directions within the housing, said piston having an outer surface in axial sliding engagement with the inner surface of the housing which reacts the moments generated during swaging directly into the housing;
- (c) a first engaging member on the outer surface of the housing that accepts both of the ring and the sleeve and restrains one of them from axial movement;
- and
- (d) a second engaging member connected to the piston that accepts both of the ring and the sleeve, and moves the other of them in an axial direction toward the first engaging member upon movement of the piston within the housing in said axial direction.
A swaging tool for swaging a fitting having a cylindrical sleeve for receiving a tube at each end of the sleeve, and a swaging ring at each end of the sleeve such that axial movement of the rings over the sleeve causes the rings to apply radial forces to the sleeve to thereby swage the sleeve to the tubes, the swaging tool comprising:
- (a) a housing having an inner surface and an outer surface;
- (b) a piston movable in opposite axial directions within the housing, said piston having an outer surface in axial sliding engagement with the inner surface of the housing which reacts the moments generated during swaging directly into the housing;
- (c) a first engaging member on the outer surface of the housing that accepts both of the sleeve and one of the rings and restrains one of them from axial movement;
- and
- (d) a second engaging member comprising a leg connected to and extending outwardly from the outer surface of the piston and a yoke connected to the leg that accepts both of the sleeve and one of the rings, and moves the other of them in an axial direction toward the first engaging member upon movement of the piston within the housing in said axial direction, such that both rings can be moved axially over the sleeve to swage the fitting without rotating the tool by 180 degrees.
A swaging tool for swaging a fitting having a sleeve for receiving a tube, and a swaging ring such that axial movement of the ring over the sleeve causes the ring to apply a radial force to the sleeve to thereby swage the sleeve to the tube, the swaging tool comprising:
- (a) a housing having an inner surface and an outer surface;
- (b) a piston movable in opposite axial directions within the housing, said piston having an outer surface in axial sliding engagement with the inner surface of the housing which reacts the moments generated during swaging directly into the housing;
- (c) a first engaging member on the outer surface of the housing which is adapted to engage the ring or the sleeve, and to restrain one of them from axial movement;
- and
- (d) a second engaging member comprising a pair of spaced-apart legs connected to and extending outwardly from the outer surface of the piston, said housing having a corresponding pair of spaced-apart axial slots through which said legs move upon movement of the piston within the housing in said opposite axial directions, said second engaging member further comprising a yoke connected to said legs which is adapted to engage the ring or the sleeve, and to move the other of them in an axial direction toward the first engaging member upon movement of the piston within the housing in said axial direction.
In combination:
- a swagable fitting comprising:
- a sleeve for receiving a tube at each end thereof, wherein the sleeve has a tool engaging surface;
- and
- a swaging ring at each end of the sleeve such that axial movement of the rings over the sleeve causes the rings to apply radial forces to the sleeve to swage the sleeve to the tubes, wherein each swaging ring has a tool engaging surface with a configuration that substantially matches the configuration of the tool engaging surface of the sleeve;
- and
- a swaging tool comprising:
- a housing having an inner surface and an outer surface;
- a piston movable in opposite axial directions within the housing, said piston having an outer surface in axial sliding engagement with the inner surface of the housing;
- a first engaging member on the outer surface of the housing that accepts both of the sleeve and one of the rings, and restrains one of them from axial movement;
- and
- a second engaging member on the piston that accepts both of the sleeve and one of the rings, and moves the other of them in an axial direction toward the first engaging member upon movement of the piston within the housing in said axial direction, such that one of said rings can be moved axially over the sleeve by the tool and thereafter the other of said rings can be moved axially over the sleeve by the tool without rotating the tool by 180 degrees.
Dependencies are inferred from the claim text.