Snap-over spout fitment and manufacture methods

1. A container comprising:

a body having a neck extending to a mouth defining a body opening;

a spout fitment having:

a spout within the body opening;

an outer wall surrounding an upper portion of the neck; and

an intermediate wall between the outer wall and the spout; and

a cap having sidewall, an external thread of the cap sidewall engaged to an internal thread of the intermediate wall,

wherein:

the spout fitment has a plurality of projections extending mouthward from the outer wall in backlocked engagement with a surface of one or more features of the neck; and

an inboard surface of the outer wall has a plurality of recesses, each respectively aligned with an associated one of the projections.

2. The container of claim 1 wherein:

a gap in the plurality of projections receives a lug of the body to angularly register the spout fitment.

3. The container of claim 1 wherein:

the one or more features is a single full annulus feature.

4. The container of claim 1 wherein:

the one or more features is a protrusion from an outer surface of the neck having an associated recess in an inner surface of the neck.

5. The container of claim 1 wherein:

the plurality of projections have a proximally tapering thickness from a distal end to a root end.

6. The container of claim 1 wherein:

the plurality of projections are in a circumferential array.

7. The container of claim 6 wherein:

the plurality of projections have a plurality of alternatingly interspersed gaps.

8. The container of claim 1 further comprising:

means on the body and fitment for preventing relative rotation of the body and fitment about a central longitudinal axis of the opening.

9. The container of claim 1 wherein:

the fitment is neither adhered nor welded to the body nor threadingly engaged to the body.

10. The container of claim 1 wherein:

a cap sealing surface is along an underside of a flange of the cap.

11. A method comprising:

molding a spout fitment having:

a spout having an outlet;

an intermediate wall outboard of the spout and cooperating with the spout to form a trough;

an outer wall;

a web joining the outer wall to the intermediate wall and cooperating with the intermediate wall and outer wall to define a channel; and

at least one projection extending from the outer wall in a direction away from the web; and

shifting the at least one projection to extend in a direction toward the web, wherein:

after the shifting, the at least one projection relaxes into contact with an outer surface of the intermediate wall.

12. The method of claim 11 wherein the shifting comprises:

a rotation by at least 45°; and

the rotation involving a toggle action.

13. The method of claim 11 further comprising:

inserting the spout fitment into a neck portion of a container body, the inserting comprising a resilient deformation of the at least one projection followed by an at least partial relaxation so as to engage a locking surface of the at least one projection to a locking surface of the container body to resist a reverse extraction; and

threading a cap onto at least one of the spout fitment and container body.

14. The method of claim 13 wherein:

the threading is at least partially before the inserting.

15. The method of claim 13 wherein:

the inserting consists essentially of a linear insertion.

16. A method comprising:

molding a spout fitment having:

a spout having an outlet;

an intermediate wall outboard of the spout and cooperating with the spout to form a trough;

an outer wall;

a web joining the outer wall to the intermediate wall and cooperating with the intermediate wall and outer wall to define a channel;

a plurality of projections extending from the outer wall in a direction away from the web; and

a plurality of recesses in an inboard surface of the outer wall, each respectively aligned with an associated one of the projections; and

shifting the plurality of projections to extend in a direction toward the web.

17. The method of claim 16 wherein:

during the shifting, the plurality of projections flex partially into the respective associated recess of the plurality of recesses.

18. The method of claim 16 further comprising:

inserting the spout fitment into a neck portion of a container body, the inserting comprising a resilient deformation of the at least one projection followed by an at least partial relaxation so as to engage a locking surface of the at least one projection to a locking surface of the container body to resist a reverse extraction; and

threading a cap onto at least one of the spout fitment and container body.

19. The method of claim 18 wherein:

the threading is at least partially before the inserting.