Bottle and closure
AssigneeColgate-Palmolive Company
InventorsCharles Raymond White, David Ziegenhorn
Life of this patent
Estimating the term…
Abstract
There are various ways to latch a closure onto a container. It has been found that for blowmolded containers that the support flange for the bottle preform can later be used as a part of the latch mechanism to secure a closure onto the container. Preforms have a support flange by which the preform is handled prior to being placed into the mold and in the mold. Prior to being placed in the mold, the preform is heated to about 85° C. to about 200° C. During this time and in the mold, it will be supported by the support flange. This support flange is used after the container is blown and filled as one part of the latching mechanism of the closure. The closure will have a portion that is an interference fit with the support flange of the bottle to thereby secure the closure to the bottle.
Claims10
A method of making a container with a closure comprising:
- providing a preform of said container, said preform having a support flange to support said preform during at least a part of the process of blowmolding said preform to said container;
- blowmolding said preform within a mold to the shape of said container, said preform being supported by said support flange;
- removing said container from the mold;
- providing a closure for said container, said closure having a top wall and a depending sidewall, further depending from said top wall and within said sidewall are a plurality of prongs with at least one latch projection on a lower end thereof to engage said support flange of said container and thereby retain said closure on said container;
- and
- attaching said closure to said container by said at least one latch projection engaging said support flange.
Dependencies are inferred from the claim text.