Pump and bottle fitments and methods for using the same

A dispenser assembly, comprising:

• a container, comprising:
• a neck;
• and
• at least one thread on the neck;
• a pump, comprising:
• a fitment, comprising:
• a pump retention portion;
• a body wall extending away from the pump retention portion;
• a skirt extending off the bottom of the body wall and toward an interior of the fitment;
• at least one opening in the skirt;
• and
• at least one thread guide on an interior surface of the body wall;
• a pump engine retained by the pump retention portion of the fitment;
• and
• a collar overlying the fitment;
• wherein the collar secures the pump to the container.

A method for assembling and disassembling a dispenser assembly, comprising:

• providing a container having a neck and at least one thread on the neck;
• providing a pump assembly comprising:
• a fitment, comprising:
• a pump retention portion;
• a skirt extending off a bottom of a body wall and angled toward an interior of the fitment, having at least one opening in the skirt;
• the body wall being between the pump retention portion and the skirt;
• at least one protrusion on an outer surface of the body wall;
• and
• at least one thread guide on an interior surface of the body wall;
• a pump engine retained by the pump retention portion of the fitment;
• and
• a collar secured to the at least one protrusion;
• filling the container with a product;
• fitting the pump assembly on a neck of the container, wherein a portion of the pump engine extends into an interior of the container;
• forcing the collar over the fitment to secure the pump assembly to the container;
• and
• twisting the pump assembly to release the fitment from the neck of the container.