Crimped tube coupling and a crimping apparatus for making a crimped tube coupling
First Claim
Patent Images
1. A tube coupling comprising:
- a tubular fitting having a central passage, an annular wall with at least one exterior annular groove;
a tube being made of a deformable material having one end sized to fit over said fitting;
said tube having a crimp section deformed to be crimped into said annular groove;
said tube having a plurality of longitudinally extending ribs spanning said crimp section circumferentially spaced about said tube.
1 Assignment
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Accused Products
Abstract
A tube coupling (10) has a tubular fitting (14) with a nipple (18) with at least one exterior annular groove (20). A deformable tube (12) has one end to fit over the nipple and has a crimp section (28) deformed into the groove with longitudinally extending ribs (30) circumferentially spared about the tube.
36 Citations
14 Claims
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1. A tube coupling comprising:
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a tubular fitting having a central passage, an annular wall with at least one exterior annular groove;
a tube being made of a deformable material having one end sized to fit over said fitting;
said tube having a crimp section deformed to be crimped into said annular groove;
said tube having a plurality of longitudinally extending ribs spanning said crimp section circumferentially spaced about said tube. - View Dependent Claims (2, 3, 4)
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5. A crimping machine for crimping a tube over a grooved fitting said machine comprising:
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a first driver base and a first cage mounted thereon;
a second driver base and a second cage mounted thereon;
said first driver base and first cage movable with respect to the second driver base and second cage between a closed position and an open position; and
at least one crimp die finger having a jaw tooth mounted on each cage for movement between an open and closed position;
said at least one die finger having distal wall sections that abut an adjacent finger when in the closed position;
said jaw tooth ending short of the distal wall sections to form a notch in said finger such that when adjacent fingers are in a closed position, said notches provide a gap between said fingers in which said tube can be deformed. - View Dependent Claims (6, 7)
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8. A crimp die for a crimp die machine;
said crimp die having its jaw tooth ending short of its distal wall section such that two crimp dies are in the closed position and the distal wall sections are in abutment, a gap is formed between the jaw teeth of adjacent crimp dies.
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9. A crimping machine for crimping a tube over a grooved fitting said machine comprising:
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a first driver base and a first cage mounted thereon;
a second driver base and a second cage mounted thereon;
said first driver base and cage movable with respect to the second driver base and cage between a closed position and an open position;
each cage having a plurality of crimp die fingers;
one of said crimp die fingers in each cage being aligned along the axis of motion of said cage; and
remaining crimp die fingers set canted from the axis of motion of said cage. said driver base movably connected to said respective mounted cage;
each driver base having a drive surface perpendicular to the axis of motion of said cage section for engaging said one of said crimp die fingers;
opposing canted drive surfaces angled with respect to the axis of motion of said cage section for abutting the remaining crimp die fingers;
said crimp die fingers being movable in each cage as each cage moves from an open position to a closed position; and
said driver base movable from its open position to its closed position to move all the crimp die fingers in said cages to achieve a closed crimping position simultaneously. - View Dependent Claims (10)
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11. A crimping machine for crimping a tube over a grooved fitting said machine comprising:
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a first driver base and a first cage mounted thereon;
a second driver base and a second cage mounted thereon;
said first driver base and cage movable with respect to the second driver base and cage between a closed position and an open position;
each cage having a plurality of crimp die fingers arranged circumferentially about a central axis between the two cages when in a closed position;
each crimp die finger in each cage having the same length and having a flat proximate drive end and a distal jaw end;
said crimp die fingers set at varying angles from the axis of motion of said cage;
said driver base movably connected to said respective mounted cage;
each driver base having a plurality of drive surfaces fixed with respect to each other and to flushly abut the flat proximate drive end of said crimp die fingers;
some of said drive surfaces being angled with respect to the axis of motion of said cage section for flushly abutting respective crimp die fingers;
said crimp die fingers being movable in each cage as each cage moves from an open position to a closed position; and
said driver base movable from its open position to its closed position to move all the crimp die fingers in said cages at rates to achieve a closed crimping position simultaneously. - View Dependent Claims (12, 13, 14)
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Specification