U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Blow molded container having an insert molded in situ

Patent 4319701 Issued on March 16, 1982. Estimated Expiration Date: Icon_subject May 30, 1999. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2941694

3083877

3406873

3777949

Tamperproof breakaway port
Patent #: 3994412
Issued on: 11/30/1976
Inventor: Difiglio

Axial compression powder dispenser Patent #: 4044836
Issued on: 08/30/1977
Inventor: Martin ,   et al.

Inventor

Assignee

Application

No. 06/043725 filed on 05/30/1979

US Classes:

222/541.9, With integral gripping means (e.g., pull tab)222/212With flow controllers or closures

Examiners

Primary: Tollberg, Stanley H.

Attorney, Agent or Firm

International Classes

B29C 49/48 (20060101)
B29C 49/58 (20060101)
B29C 49/20 (20060101)
B65D 47/10 (20060101)
B65D 47/06 (20060101)
B65D 1/00 (20060101)
B65D 1/32 (20060101)
B65D 1/02 (20060101)
B65D 23/00 (20060101)
B29C 49/04 (20060101)

Abstract

There is disclosed a method and apparatus for blow molding a thermoplastic container. The blow molded container is fabricated conventionally from a downwardly descending thermoplastic extruded parison tubing which passes between sets of separated mold halves. One of the sets of mold halves is adapted to accommodate an insert positioned on a retaining wand. When the molds close and the parison is conventionally blow molded the wand continues to support the insert while at the same time extends beyond the container so blow molded. The insert may be, for instance, a nozzle for a thermoplastic bottle having a cap molded thereabout having break away features whereby the cap may be removed. In another embodiment the wand is supported by a block located externally of the mold halves and in some cases axially with respect to the molds.

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