Sample Taking Device With Pneumatic Closing Cap

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Solution Overview

Problem

Existing devices for taking samples from holes in the ground require laborious cleaning and can be impaired by the hardening of suspensions, leading to functional issues due to complex components and inflatable elements.

Innovation Solution

A device with a simple design featuring a closing cap that is opened by compressed air, minimizing components and using a container with a compressed air line to allow sample inflow, reducing maintenance and allowing for easy replacement of parts.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If complex components and inflatable elements are used in sample taking devices, then the device can effectively close and open inlet openings, but the device requires laborious cleaning and maintenance due to hardening of suspensions

Engineering Contradiction:
Improveeffective closing and opening of inlet openingVSAvoidcleaning and maintenance effort
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent removes complex movable components and inflatable elements from the sample taking device. Instead, it uses a simple container with a closing cap that is held in place by compressed air pressure. This extraction of complex components directly reduces cleaning and maintenance effort while maintaining the ability to effectively close and open the inlet opening.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses compressed air pressure to hold the closing cap in place and seal the inlet opening. By using pneumatic pressure instead of mechanical movable components or inflatable elements, the device achieves reliable sealing without components that require cleaning and maintenance. The compressed air line delivers pressure to the closing cap, and ventilation allows pressure equalization for opening.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Ease of operation

If movable components are used in sample taking devices, then the device can control sample inflow, but the hardening of suspension impairs or destroys the functionality of these components

Engineering Contradiction:
Improvecontrol of sample inflowVSAvoidfunctionality of movable components
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent extracts all movable components from the device. The closing cap is not a movable component but a stationary element held in place by compressed air pressure. This eliminates the problem of suspension hardening impairing movable components while maintaining control over sample inflow through pressure control.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent replaces mechanical movable components with a pneumatic system. Instead of using mechanical valves or movable closures that can be impaired by hardening suspension, the device uses compressed air pressure to control the closing cap position and sample inflow, thereby maintaining reliability.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If inflatable elements are used in sample taking devices, then the device can seal the inlet opening, but these elements require thorough cleaning and are vulnerable to damage from hardening suspension

Engineering Contradiction:
Improvesealing of inlet openingVSAvoidnumber of components for opening and closing
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent removes inflatable elements from the device design. Instead, it uses a simple closing cap held by compressed air pressure to seal the inlet opening. This reduces device complexity while maintaining reliable sealing functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent uses compressed air pressure to achieve sealing of the inlet opening through the closing cap, replacing inflatable elements. This pneumatic approach reduces the number of components while maintaining effective sealing, as the pressure-controlled cap provides a simple yet reliable closure mechanism.

Inventive Principle:
Principle #29Pneumatics and hydraulics

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

The solution enables efficient sample taking with reduced maintenance and extended device lifespan, as the device is largely free of movable components and inflatable elements, and the closing cap can be reused or produced inexpensively.

Implementation Method 1

On feeding compressed air into the receiving space the closing cap is released from the inlet opening and this is exposed for the inflow of the filling

Methodology Applied
Scientific EffectCompressed air pressure: Pressure Increase

Data Source

PatentUS10697862B2Device and method for taking a sample
Publication Date: 2020.06.30 BAUER SPEZIALTIEFBAU GMBH
  • US10697862B2 patent drawing

AI summary

The invention relates to a device and a method for taking a sample of a filling, with which a hole in the ground is filled, having a container with at least one inlet opening for the inflow of the filling into a receiving space of the container. According to the invention provision is made in that a closing cap is placed onto the inlet opening and this is closed thereby. The container is provided with a compressed air line which leads into the receiving space, wherein on feeding compressed air into the receiving space the closing cap is released from the inlet opening and this is exposed for the inflow of the filling.