Disposable Dosing Head with Tilting Support Surface

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Solution Overview

Problem

Existing dosing devices for free-flowing substances, such as powders and pastes, lack a cost-effective and compact dosing unit suitable for small quantities, particularly for toxic substances, which can be used once and then disposed of, as they are not easily refillable or reusable.

Innovation Solution

A dosing head with a housing containing a filling opening and an outlet opening, a closure mandrel for opening and closing, and a support surface for stable placement, allowing easy filling and storage, featuring a snap connection for secure closure and a cylindrical inner wall to prevent material accumulation, along with a stirring element to prevent lump formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a disposable dosing unit is used for small quantities of toxic substances, then cost-effectiveness and safety are improved, but the device complexity increases due to integration of filling and dosing functions in one unit

Engineering Contradiction:
ImprovesafetyVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the filling function and dosing function into a single integrated dosing unit. The dosing unit includes a housing with an interior space for accommodating dosing material, a filling opening for loading material, and an outlet opening for dispensing. This integration eliminates the need for separate filling and dosing devices, making the unit disposable and safe for toxic substances while maintaining functional completeness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The dosing unit is designed as a separable component that can be independently disposed of after use. The unit includes distinct functional elements (housing, filling opening, outlet opening, closure mandrel) that are integrated into a single disposable package, allowing the entire assembly to be discarded after one use, thereby eliminating contamination risks and reducing cleaning requirements.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a disposable dosing unit is designed, then ease of operation and storage are improved, but manufacturing cost increases

Engineering Contradiction:
Improveease of operationVSAvoidmanufacturing cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent designs the dosing unit as a disposable component intended for single use. The unit includes a housing, filling opening, outlet opening, and closure mechanism that can be manufactured at low cost using simple materials and processes. After use, the entire unit is discarded, eliminating the need for expensive cleaning, sterilization, or maintenance procedures associated with reusable dosing devices.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of operation

If the dosing head is designed for single use and disposal, then ease of operation is improved, but device complexity increases due to integration of multiple functions

Engineering Contradiction:
Improveease of operationVSAvoiddevice complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The dosing head integrates multiple functions including material storage (housing with interior space), material loading (filling opening), material dispensing (outlet opening), and flow control (closure mandrel with stirring element) into a single unified component. This integration simplifies operation by eliminating the need for separate filling and dosing devices while maintaining all necessary functions in one disposable unit.

Inventive Principle:
Principle #5Merging (Combining)

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

Enables simple and efficient filling and dosing of small quantities, reducing the need for specialized storage and allowing for disposal after use, while ensuring accurate and reliable dosing without material accumulation issues.

Implementation Method 1

the powdery or pasty dosing material is conveyed and loosened by stirring with an agitator in the dosing head

Methodology Applied
Scientific EffectStirring: Stirring

Implementation Method 2

the area of ​​the outlet opening consists of elastic material, so that the e.g. slit-shaped outlet can be expanded by mechanical action and closed by removing the elastic action

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentEP2829851B1Metering head
Publication Date: 2017.02.22 METTLER TOLEDO GMBH
  • EP2829851B1 patent drawing
  • EP2829851B1 patent drawing
  • EP2829851B1 patent drawing

AI summary

A dosing head (5), which can be used in a dosing device (1) for dosing free-flowing material, comprises a housing (3) with an interior space (59) for receiving the material to be dosed, a filling opening (57) and an outlet opening (62), as well as a closing mandrel (80) arranged in the housing (3), which is displaceable in the direction of a closing mandrel axis (81) and rotatable about the closing mandrel axis (81) for opening and closing the outlet opening (62) and for loosening and conveying the material to be dosed. The dosing head (5) can in particular assume a dosing position with a substantially vertical orientation of the closure mandrel (80) for dispensing the dosing material through the outlet opening (62) located at the bottom of the dosing head (5) and a filling position different from the dosing position for filling the dosing material through the filling opening (57), wherein in the dosing position the filling opening (57) is arranged laterally on the housing (3) and is substantially vertically oriented.Furthermore, the dosing head (5) has a support surface (51) which is also arranged laterally in the dosing position and is diametrically opposite the filling opening (57), so that the dosing head (5) can be brought from the dosing position to the filling position essentially by tilting it by 90°, in which the dosing head (5) with the filling opening (57) now on top and essentially horizontally oriented can rest on the support surface (51) while it is filled with the dosing material and then closed by means of a lid (90).