Pack for fluid filling materials with reclosable opening device

Patent 4604850 Issued on August 12, 1986. Estimated Expiration Date:

July 17, 2004. 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.

Abstract Claims Description Full Text

Patent References

2056093

2061967

2070838

2201177

3234858

3823850

Apparatus for producing containers
Patent #: 4074961
Issued on: 02/21/1978
Inventor: Reil

Collapsible container forming machine
Patent #: 4079664
Issued on: 03/21/1978
Inventor: Jones

Process for the aseptic packing of products and machine employing said process Patent #: 4208852
Issued on: 06/24/1980
Inventor: Pioch

Inventor

Reil, Wilhelm

Assignee

Tetra Pak Developpement S.A.

Application

No. 06/631152 filed on 07/17/1984

US Classes:

53/423, Including casting or molding493/302, With advancing of tube axially493/61, Reciprocatory cutting, breaking, tearing, abrading, or form-scoring tool493/85, With extruding, drawing, or attenuating493/87, Including discharge assist means (e.g., valve, pour spout, etc.)53/452, Forming or partial forming a receptacle and subsequent filling53/456, Forming three-dimensional receptacle from web or blank53/561, Molding or extruding a container53/563Forming a receptacle around a mandrel or former and removing therefrom prior to filling

Examiners

Primary: Coan, James F.

Attorney, Agent or Firm

International Classes

B65D 47/06 (20060101)
B65D 47/10 (20060101)
B65B 3/02 (20060101)
B65B 3/00 (20060101)

Foreign Application Priority Data

1980-11-15 DE

Abstract

Two-piece containers having a one-piece tubular body and base and a cover molded onto the body are formed from a continuous web of thermoplastic supporting material by means of an apparatus which includes tube forming, cover molding, container filling and container base sealing stations. The web of material is initially formed into a strand of partially assembled tubular container bodies having fold impressions for the base and then severed into separate tubular bodies for further processing, filling and sealing.