Gas shield generator for a blow/fill/seal machine
AssigneeWeiler Engineering, Inc.
InventorsPaul Novorolsky, Alex A. Bazdor
Life of this patent
Estimating the term…
Abstract
A gas shield generator positionable over open parisons in a Blow/Fill/Seal machine prior to container forming, filling and sealing minimizes likelihood of particulate contamination of open parisons while the open parisons are transported to a parison blowing and filling station.
Claims17
A gas shield generator for a Blow/Fill/Seal machine which comprises
- a base plate adapted for attachment to a parison mold carriage;
- a linear actuator carried by the base plate;
- and
- a reciprocating gas-emitting dispenser operably associated with the linear actuator for back-and-forth movement over the parison mold carriage.
A gas shield generator for a Blow/Fill/Seal machine which comprises
- a base plate adapted for attachment to a parison mold carriage;
- a linear actuator carried by the base plate;
- a hollow gas manifold operably associated with the linear actuator for back-and-forth movement, defining a gas inlet and plural gas outlets;
- a gas nozzle operably associated with each gas outlet and in gas flow communication with the hollow gas manifold;
- and
- a gas shield cover attached to the hollow gas manifold and extending over the gas nozzle.
A gas shield generator for a Blow/Fill/Seal machine which comprises
- a base plate adapted for attachment to a parison mold carriage;
- an elongated tie bar attached to the base plate;
- a linear pneumatic actuator carried by the tie bar and having a piston rod with a distal end portion thereof extending beyond the tie bar;
- a clevis mounted to said distal end portion;
- a center flange bearing mounted in the tie bar on each side of the linear pneumatic actuator and spaced therefrom;
- a push rod received in the center flange bearing and extending through the elongated tie bar;
- an elongated manifold mounting bar received in said clevis, held in place by a clevis pin and defining a receptacle for receiving a distal end portion of the push rod;
- a hollow gas manifold attached to the manifold mounting bar, defining a gas inlet and a plurality of gas outlets;
- a gas nozzle mounted in each gas outlet and in gas flow communication with the hollow gas manifold;
- and
- a gas shield cover carried by the hollow gas manifold and extending over each said gas nozzle.
A gas shield generator for a Blow/Fill/Seal machine which comprises
- a base plate adapted for attachment to a parison mold carriage;
- a linear actuator carried by the base plate;
- a hollow gas distribution bar operably associated with the linear actuator for back-and-forth movement and defining a gas inlet and a gas outlet;
- and
- a planar plenum chamber mounted to the gas distribution bar and in gas flow communication therewith;
- said planar plenum chamber comprising a hollowed out top plate and a perforated bottom plate coextensive with the top plate.
A method for providing a protective gaseous envelope over open end portions of extruded parisons in a Blow/Fill/Seal machine which comprises
- positioning a gas-emitting dispenser over the open top portions of extruded parisons from a rest position;
- transporting the extruded parisons to a blowing and filling station together with the gas-emitting dispenser, and
- withdrawing the gas-emitting dispenser to the rest position when the extruded parisons are at the blowing and filling station.
Dependencies are inferred from the claim text.