Method and apparatus for forming a parison

Patent metadata

Field	Value
Publication number	US-11964901-B2
Application number	US-202217743815-A
Country	US
Kind code	B2
Filing date	May 13, 2022
Priority date	Aug 29, 2019
Publication date	Apr 23, 2024
Grant date	Apr 23, 2024

Abstract

A method and apparatus for forming a glass parison are disclosed. A glass parison forming apparatus includes a feeder spout having an orifice ring, a plunger carried in the feeder spout and including a blow conduit therethrough, and a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween. A glass container produced by the disclosed method and apparatus is also described.

First claim

The invention claimed is:

1. A glass parison forming apparatus, comprising:
a feeder spout including an orifice ring;
a plunger carried in the feeder spout and including a blow conduit therethrough, said plunger configured to be passable through said orifice ring; and
a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween and wherein said neck ring is configured to support a freely suspended parison.

2. The apparatus of claim 1 , wherein the glass parison has a first open end, a second open end, and a sidewall extending between the first and second open ends.

3. The apparatus of claim 1 , wherein the orifice ring is heated.

4. The apparatus of claim 3 , wherein the orifice ring is heated to control the temperature of molten glass as it exits the spout.

5. The apparatus of claim 1 , wherein the plunger is a screw plunger.

6. The apparatus of claim 1 , wherein the blow conduit is radially disposed in the center of the plunger and extends through the plunger and along a longitudinal axis.

7. The apparatus of claim 1 , wherein the apparatus feeds molten glass through an annular space established between the plunger and the orifice ring of the glass feeder spout and blows gas through the blow conduit of the plunger into the molten glass to establish an exterior and an interior of the glass parison, and wherein the neck ring contacts a portion of the exterior of the glass parison.

8. The apparatus of claim 1 , wherein the apparatus does not include a blank mold to produce the parison.

9. The apparatus of claim 1 , further comprising:
a compressed air source coupled to the plunger and blow conduit.

10. A glass parison forming apparatus, comprising:
a feeder spout including an orifice ring;
a plunger carried in the feeder spout and including a blow conduit therethrough, said plunger configured to be passable through said orifice ring; and
a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween, and
wherein the blow conduit and the plunger are unitary.

11. A glass parison forming apparatus, comprising:
a feeder spout including an orifice ring;
a plunger carried in the feeder spout and including a blow conduit therethrough, said plunger configured to be passable through said orifice ring; and
a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween, and
wherein the plunger is configured to extend into the neck ring.

12. A glass parison forming apparatus, comprising:
a feeder spout including an orifice ring;
a plunger carried in the feeder spout and including a blow conduit therethrough, said plunger configured to be passable through said orifice ring; and
a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween, and
wherein the plunger and the blow conduit are configured to extend into the neck ring.

13. A glass parison forming apparatus, comprising:
a feeder spout including an orifice ring;
a plunger carried in the feeder spout and including a blow conduit therethrough, and being configured to push molten glass through the orifice ring and blow the molten glass into a parison; and
a neck ring located immediately downstream of the orifice ring, with no chutes, scoops, or other gob handling devices therebetween, and configured to create a neck finish of the parison that carries the parison freely suspended therefrom.

14. A glass container manufacturing system, comprising:
glass parison forming apparatus of claim 13 and having no blank mold;
a blow mold; and
glass parison transfer equipment to transfer the neck ring with the parison suspended therefrom to the blow mold.

Assignees

• Owens Brockway Glass Container

Inventors

• Nafziger Gregory W

Classifications

• C03B9/1932 Primary

  Details of such machines, e.g. plungers or plunger mechanisms for the press-and-blow machine, cooling of plungers (C03B9/195 takes precedence) · CPC title

• B65D1/02

  Bottles or similar containers with necks or like restricted apertures, designed for pouring contents (thermally-insulated containers B65D81/38, A47J41/00; {feeding-bottles A61J9/00}) · CPC title

• C03B7/086 Primary

  Plunger mechanisms · CPC title

• C03B7/088

  Outlets, e.g. orifice rings · CPC title

• C03B9/30

  Details of blowing glass (for blowing with the mouth C03B9/02); Use of materials for the moulds · CPC title