Container Sterilization Layout With Vertical Transfer and Fewer Handovers

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Solution Overview

Problem

Existing container sterilization systems are bulky and inefficient, with long transport paths leading to cooling of preforms, increased risk of misalignment during transfers, and high footprints, especially when using multiple sterilization units within a housing.

Innovation Solution

A container treatment apparatus with integrated container outer and inner surface treatment devices that allow holding devices to temporarily access housing openings for direct transfer and include rotatable carriers with parallel rotational axes, reducing the need for internal transport devices and optimizing drive device placement for a compact design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple sterilisation units and transport devices are arranged within a common housing to sterilise different areas of containers sequentially, then sterilisation effectiveness is improved, but the apparatus becomes very voluminous and requires a large footprint

Engineering Contradiction:
Improvesterilisation effectivenessVSAvoidfootprint
Core Design Contradiction:
ReliabilityVSArea of stationary object

Solution Approach 1:

The patent transitions from a horizontal arrangement of multiple sterilisation units to a vertical stacking configuration. The first and second sterilisation units are positioned one above the other, with transport devices transferring containers vertically between them. This dimensional change reduces the horizontal footprint while maintaining the sequential sterilisation process effectiveness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If several transport devices are used to transfer containers between sterilisation units, then sterilisation coverage is improved, but the transport path becomes very long and dwell time increases

Engineering Contradiction:
Improvesterilisation coverageVSAvoiddwell time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The transport path is reconfigured from a horizontal layout to a vertical arrangement. Containers are transferred upward from the first sterilisation unit to the second sterilisation unit through vertical transport devices, significantly shortening the overall transport path length and reducing dwell time while maintaining complete sterilisation coverage.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If treatment devices are arranged on carousels or starwheels connected to a pitch distribution starwheel, then treatment capability is improved, but the apparatus becomes very long and preforms cool down too much

Engineering Contradiction:
Improvetreatment capabilityVSAvoidtransport distance
Core Design Contradiction:
ReliabilityVSLength of moving object

Solution Approach 1:

The patent replaces the horizontal carousel/starwheel arrangement with a vertical stacking configuration. The treatment devices remain rotatable for treating container surfaces, but the entire system is arranged vertically, reducing the horizontal transport distance and preventing excessive cooling of preforms during transit.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

4Productivity

If multiple pitch distribution starwheels are used for container transfer, then transfer capability is improved, but the risk of faulty transfers increases due to frequent transfers in poorly accessible areas

Engineering Contradiction:
Improvetransfer capabilityVSAvoidtransfer reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent extracts the pitch distribution function from multiple separate starwheels and concentrates it into a single pitch distribution starwheel positioned at the inlet. This reduces the number of transfer points from multiple to just one, thereby reducing the cumulative risk of faulty transfers while maintaining full transfer capability.

Inventive Principle:
Principle #2Taking out (Extraction)

5Object-affected harmful factors

If radiation shielding is implemented for sterilisation, then safety is improved, but the housing becomes complex and access for maintenance becomes difficult

Engineering Contradiction:
Improveradiation protectionVSAvoidmaintenance accessibility
Core Design Contradiction:
Object-affected harmful factorsVSEase of repair

Solution Approach 1:

The housing is segmented into multiple accessible sections with removable panels positioned at convenient access points. The radiation shielding is integrated into these modular sections, allowing maintenance personnel to access and service the sterilisation units without compromising radiation protection, thereby improving both safety and maintainability.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This design enables a more compact and efficient container sterilization process with reduced transfer times and misalignment risks, allowing for higher throughput and integration with existing systems while maintaining sterility and radiation shielding.

Implementation Method 1

A radiation source provided for this purpose is also usually arranged at least in sections in a housing and emits the radiation into the interior of the housing, wherein the housing having shielding properties for this radiation

Methodology Applied
Scientific EffectRadiation: Radiation

Implementation Method 2

Newer developments use ionising radiation to achieve a reduction in germs. In most applications, this radiation consists of accelerated electrons which are generated in a corresponding system and treat the containers to be sterilised

Methodology Applied
Scientific EffectIonising radiation: Electron Beam

Data Source

PatentUS12612262B2Apparatus and method for treating and in particular sterilising containers
Publication Date: 2026.04.28 KRONES AG
  • US12612262B2 patent drawing
  • US12612262B2 patent drawing
  • US12612262B2 patent drawing

AI summary

Disclosed is a container treatment device with a transport device for transporting containers along a predetermined transport path, wherein the transport device has at least one transport device for transporting the containers and at least one container treatment device for treating the containers in a predetermined manner, wherein this transport device includes a preferably rotatable carrier, on which a plurality of holding devices for holding at least one container are arranged, these holding devices being movable relative to the carrier in such a way that a distance between two containers immediately following one another on the transport path can be varied, wherein the container-handling device is arranged in such a way that it can handle the containers transported by the transport device.