Method of increasing the wall thickness of a bottom structure of

Details Method of increasing the wall thickness of a bottom structure of Method of increasing the wall thickness of a bottom structure of

1979-11-27

1981-04-14

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Direct application of fluid pressure differential to...

Including application of internal fluid pressure to hollow...

264537, B29C 1707

Patent

active

042619483

ABSTRACT:
This disclosure relates to an unexpected increase in the strength of a bottle bottom of the champagne type by the addition of ribs internally of the preform when the preform is axially stretched prior to the blowing thereof within the blow mold. Most particularly, by adding internal ribs to the interior surface of the bottom defining portion of the preform, the preform has the bottom forming portion unduly strengthened against shrinkage in wall thickness when the preform is axially lengthened through the use of a stretch rod. The net result is that the stretching of the preform and the thinning of the wall is held to a minimum in the bottom forming portion of the preform and is transferred primarily to the body forming portion of the preform where lesser wall thickness does not unduly detract from the strength of the bottle.

REFERENCES:
patent: 3395821 (1968-08-01), Fuerst et al.
patent: 3956441 (1976-05-01), Uhlig
patent: 4005245 (1977-01-01), Edwards
patent: 4151249 (1979-04-01), Lee
patent: 4170622 (1979-10-01), Uhlig

Affiliated with

Also associated with

Rating

Method of increasing the wall thickness of a bottom structure of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of increasing the wall thickness of a bottom structure of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of increasing the wall thickness of a bottom structure of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-158806