of Tru-Fit Fittings
vs. Prior Types
& Pulling Forces
Free Demonstration Video
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No.: US 7,237,808 B2
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Alignment has always been a major problem in
connecting objects using tube or pipe fittings. Now you can
have true alignment
without being in line.
Tru-Fit Alignment Fittings overcome many limitations
of prior fitting designs.
Prior designs allow for one directional alignment at point
of contact between the fitting and the mating part. If the
two objects being connected were offset (not in a straight
line) then bending of the tube, pipe, or rod would need to
be done in order to properly align the two objects. This is
somewhat like an airplane making a final approach to an airport runway.
With this process there is always stress (tension) within
all parts used, including the two parts being connected.
There will be either a pushing or pulling force between the
two objects. The tubes, pipes, or rods always have variables
which make it impossible to produce two parts exactly alike.
Even with the standard tolerances given in the manufacturing
process there is still stress created when the connection is
made. Some of these variables are wall thickness variation,
material hardness, diameter variation, and length of part
These variables add to the amount of stress created in the
connection. The two objects being connected are most likely
to be stationary so the flexibility must come from the tube
and or fittings. Prior designs limit this
greatly needed flexibility.
The Tru-Fit tube fittings and pipe fittings allow
connections to be made from various radial axis. It has a unique
mating contact surface which is spherical (circular) or
semicircular in nature. It is of a male and female mating
type nature, similar to a ball and socket construction. One
allowing the other to swivel prior to tightening. One could
call this a swivel fitting. If the fitting is male then the mating part is
female in nature, and vice versa. It may include fitting,
nut, and a tube flare or ferrule, all of which are circular
Tru-Fit tube fittings and pipe fittings allow for a multiple
of directional alignments at point of contact between the
fitting and the mating part. If two objects being connected
were offset, (not in a straight line), using the
Tru-Fit design fittings
could possibly eliminate the need for bending of the tube or pipe.
One reason for bending would be to navigate around other
objects between the two being connected. By using Tru-Fit
fittings on both ends of the tube or pipe, and one
somewhere in between, stress in, and between the two objects
connected, would not occur.
Tru-Fit fittings allow much more tolerance between
the two objects being connected. Telescoping tube
configurations using Tru-Fit tube and pipe fittings
may be used also.
PVC fittings and PVC pipe, could be manufactured
with this process also.
This type of fitting could be called ball and socket
fitting, swivel fitting, rotating fitting, ball and socket
tube fitting, ball and socket pipe fitting, ball and socket
rotating fitting, swivel tube fitting, swivel pipe fitting,
ball and socket tube fittings, ball and socket fittings,
ball and socket pipe fittings, ball and socket rotating
fittings, swivel fittings, swivel tube fittings, swivel pipe
fittings, orbital fitting, orbital fittings, alignment
fitting, alignment fittings, pivot fitting,
pivotal fitting, pivot fittings, and pivotal fittings,
telescoping tube fitting, telescoping tube fittings,
telescoping fitting, telescoping fittings, telescoping pipe
fittings, telescoping pipe fitting, special tube fitting,
special tube and pipe fitting, special tube fittings,
special tube and fittings, special pipe fittings,
special pipe fitting, specialty tube fitting, specialty tube
fittings, specialty tube and pipe fitting, specialty tube
and pipe fittings, special fitting, special fittings,
specialty fitting, specialty fittings, hydraulic tube
fittings, hydraulic pipe fittings, fluid line connectors,
liquid line connectors, custom tube fittings, custom pipe
fittings, air line fittings, hydraulic line fittings,
hydraulic fittings, air fittings, pvc fittings, pvc pipe
With the use of Tru-Fit Alignment tube and pipe
fittings the following may be obtained:
These features of the Tru-Fit Alignment fittings will
be apparent from this set of detailed pictures
- Tru-Fit Alignment tube and pipe fittings can
produce stress-free connections between two objects being
- Any radial axis connection can be made using a
male Tru-Fit Alignment fitting with a female Tru-Fit
- With the use of Tru-Fit Alignment fittings there
may be no pushing or pulling force between the objects being
- Tru-Fit Alignment fittings will allow greater
dimensional tolerances between objects to be connected.
- The use of Tru-Fit Alignment fittings and nuts
may in some cases eliminate the need for bending of the
tube or pipe.
- Tru-Fit Alignment fittings and nuts may mate with
a flared tube of a prior design by others and still
have the rotating axis ability as using a Tru-Fit
Alignment type flare.