Plastic article or earthenware shaping or treating: apparatus – Diverse distinct type shaping means – Shaping orifice and either a downstream preform reshaping...
Patent
1973-08-22
1976-03-02
Whitehead, Harold D.
Plastic article or earthenware shaping or treating: apparatus
Diverse distinct type shaping means
Shaping orifice and either a downstream preform reshaping...
425342, 425DIG216, B29C 1707
Patent
active
039415422
ABSTRACT:
This application discloses a method of and apparatus for blow molding plastic articles in two blowing stages. A freely extruded pendant tubular parison is first blown into a pre-form, then the pre-form, while at a temperature most conducive to orientation, is blown to its final configuration. By performing certain operations on the pre-form prior to the final blowing step, improved products can be made. For example, by pinching shut a portion of the pre-form, handled containers can be made on a free extrusion blow molding machine. By stretching the pre-form prior to final blowing, containers of increased top-load or stacking capability can be made.
REFERENCES:
patent: 2715751 (1955-08-01), Weber
patent: 2919462 (1960-01-01), Friden
patent: 3439380 (1969-04-01), Seefluth
patent: 3470282 (1969-09-01), Scalora
patent: 3632261 (1972-01-01), Gasior
patent: 3781395 (1973-12-01), Uhlig
patent: 3806587 (1974-04-01), Turner
Holler E. J.
Owens--Illinois, Inc.
Ramsey K. J.
Rice Philip M.
Whitehead Harold D.
LandOfFree
Apparatus for blow molding plastic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for blow molding plastic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for blow molding plastic articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1275855