Fluid Container with Disposable Pouring Tube

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Solution Overview

Problem

Existing dual storage system-type fluid containers face issues with secure attachment of liquid pouring tubes, clogging due to breakable seals, and difficulty in reassembling after cleaning, leading to contamination and operational challenges during fluid handling and transportation.

Innovation Solution

A fluid container design featuring a flexible bag with a neck portion supported by an outer container, a cylindrical retainer with a through hole, and a liquid pouring tube with a collar portion, which allows for easy attachment and integration, eliminating the need for breakable seals and reducing reassembly issues by using a sealing mechanism that vents gases before liquid drainage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a breakable seal is used to connect the dispenser to the container, then the connection can be made without threading, but seal fragments may mix into the bag causing contamination and clogging

Engineering Contradiction:
Improveconnection easeVSAvoidcontamination
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent removes the breakable seal component entirely from the system. Instead of using a seal that breaks during connection, the invention uses a threaded coupling mechanism that creates a secure, fragment-free connection between the dispenser probe and the container's liquid pouring tube, eliminating the source of contamination.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent makes the liquid pouring tube disposable rather than reusable. The tube is discarded after a single use to prevent any potential contamination from connection fragments or reassembly issues, ensuring chemical purity while the expensive outer container and sealing mechanisms are reused.

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

2Ease of repair

If the liquid pouring tube is made separable for cleaning, then maintenance is possible, but reassembly becomes difficult and contamination may occur

Engineering Contradiction:
Improvecleaning accessibilityVSAvoidreassembly reliability
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The liquid pouring tube is designed as a disposable component that is discarded after single use, eliminating the need for cleaning and reassembly operations. This resolves the contradiction by avoiding reassembly reliability issues entirely while still allowing maintenance of the reusable outer container and sealing mechanisms.

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

Solution Approach 2:

The patent extracts the liquid pouring tube as a separate, removable component that can be easily taken out for disposal without complex reassembly procedures. The tube is removed from the threaded coupling mechanism and discarded, simplifying the maintenance process while ensuring no contamination occurs during handling.

Inventive Principle:
Principle #2Taking out (Extraction)

3Reliability

If the liquid pouring tube is tightly secured to prevent leakage, then sealing is improved, but the tube becomes difficult to attach and remove

Engineering Contradiction:
Improvesealing reliabilityVSAvoidattachment ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs a dynamic threaded coupling mechanism that allows the liquid pouring tube to be easily screwed on and off during operation. The threading provides a secure, leak-proof connection when assembled, while allowing simple disassembly for disposal, thus resolving the contradiction between secure sealing and ease of attachment.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the connection system into a threaded coupling mechanism that separates the liquid pouring tube from the outer container. This segmentation allows the tube to be independently attached and detached through threading, providing both secure sealing during use and ease of removal for disposal.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS8052014B2Fluid container
Publication Date: 2011.11.08 TOKYO OHKA KOGYO CO LTD
  • US8052014B2 patent drawing
  • US8052014B2 patent drawing
  • US8052014B2 patent drawing

AI summary

A dual storage system-type fluid container in which a liquid pouring tube is securely fitted and a liquid discharging passage formed in a dispenser is easily and securely connected to the liquid pouring tube. A joint for the fluid container comprises a flexible bag (12) having a neck part (11) opened such that liquid can be poured through it and also has an outer container (13) for receiving the bag (12) with the neck part (11) supported by a mouth part (13a). The liquid pouring tube (15) having a flange part (15a) can be fitted to the mouth part (13a) of the outer container (13) with a retainer (14) placed between the tube and the mouth part. A flow passage (21a) formed in the dispenser (2) can be directly connected to the fluid passage (15b) of the liquid pouring tube (15).