Nozzle for blow molding plastic containers and installation provided with same
AssigneeSidel
InventorsAlphonse Barray, Patrick Siloret
Life of this patent
Estimating the term…
Abstract
A blow molding apparatus and a nozzle operable to provide fluid into an interior of a blank. The blank is supported in a mold such that a neck of the blank emerges from a wall of the mold. The nozzle includes a nozzle tip and an opening that surrounds the neck of the blank. A peripheral edge of the opening comes to rest on the mold and a seal is provided between the opening and the mold. In one embodiment, the seal is held on the nozzle by a locking ring.
Claims25
Nozzle (1) for blow molding for carrying blowing fluid into the interior of a blank (21;
- 39) supported below its neck (32, 38) in a mold (36, 37;
- 46, 47) wherein said neck emerges from a wall (31;
- 44, 45) of the mold, the nozzle (1) having an opening (3) carrying fluid into the blank, characterized in that the opening (3) has dimensions such that when the blank is in place in the mold and the nozzle (1) is in the blow molding position, the opening surrounds the neck, and the peripheral edge (6;
- 40), of the opening opposite the blank that makes up the tip (7) of the nozzle, comes to rest on said wall (31;
- 44, 45) of the mold, and sealing means (6;
- 42, 43) are provided at the level of the support zone.
A nozzle operable to provide fluid into an interior of a blank, the blank supported in a mold such that a neck of the blank emerges from a wall of the mold, the nozzle comprising:
- a nozzle tip;
- a fluid passage that surrounds the neck, wherein a peripheral edge of the fluid passage comes to rest on the mold;
- and
- a seal between the fluid passage and the mold.
A nozzle operable to provide fluid into an interior of a blank, the blank supported in a mold such that a neck of the blank emerges from a wall of the mold, the nozzle comprising:
- a nozzle tip;
- an opening that surrounds the neck, wherein a peripheral edge of the opening comes to rest on the mold;
- and
- a seal between the opening and the mold, wherein the seal surrounds the nozzle tip, and further wherein the seal is held on the nozzle by a locking ring.
A blow molding apparatus comprising:
- a mold for forming a predetermined shape;
- a nozzle operable to provide fluid into an interior of a blank, the blank supported in the mold such that a neck of the blank emerges from a wall of the mold, the nozzle comprising:
- a nozzle tip;
- fluid passage that surrounds the neck, wherein a peripheral edge of the fluid passage comes to rest on the mold;
- and
- a seal between the fluid passage and the mold.
A blow molding apparatus comprising:
- a mold for forming a predetermined shape, wherein the mold comprises two half-molds;
- a nozzle operable to provide fluid into an interior of a blank, the blank supported in the mold such that a neck of the blank emerges from a wall of the mold, the nozzle comprising:
- a nozzle tip;
- an opening that surrounds the neck, wherein a peripheral edge of the opening comes to rest on the mold;
- and
- a seal between the opening and the mold, wherein the seal comprises two sections, each of the two sections held by one of the two half-molds.
Dependencies are inferred from the claim text.