Pump-Type Liquid Dispenser With Pivotable Base Assembly

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Solution Overview

Problem

Conventional dispensers waste remaining fluid as the volume decreases, making it inaccessible due to the design of the pump and reservoir configuration.

Innovation Solution

A pump-type liquid dispenser with a removable base assembly that allows access to previously inaccessible fluids by converting the dispenser from a pump-type to a squeeze-type, utilizing a pivotable lid and adjustable base assembly to facilitate fluid access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If a conventional pump-type dispenser is used with a dip tube extending into the reservoir, then the dispenser can release a specific amount of material or fluid upon activation, but the remaining fluid becomes inaccessible when the volume decreases, leading to waste

Engineering Contradiction:
Improvefluid wasteVSAvoidfluid accessibility
Core Design Contradiction:
Loss of substanceVSEase of operation

Solution Approach 1:

The base assembly is made pivotable between a first orientation (storing inaccessible fluid) and a second orientation (dispensing fluid). This dynamic reconfiguration allows the system to access fluid that would otherwise be trapped at the bottom of the reservoir, eliminating waste while maintaining ease of operation through simple pivoting motion

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The dispenser is divided into functionally separate components: a removable base assembly that can be pivoted independently from the main reservoir and pump assembly. This segmentation allows the base to be repositioned to access trapped fluid without affecting the main dispensing mechanism, resolving the contradiction between fluid accessibility and operational simplicity

Inventive Principle:
Principle #1Segmentation

2Quantity of substance

If the reservoir volume decreases to a low level, then the dip tube can no longer access the remaining fluid, but the dispenser structure remains fixed and cannot adapt

Engineering Contradiction:
Improveusable fluid volumeVSAvoiddispenser structure
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The pivotable base assembly provides a dynamic adaptation mechanism that responds to decreasing fluid levels. As the reservoir volume decreases and fluid becomes inaccessible to the dip tube, the user simply pivots the base to access the remaining fluid, allowing the system to adapt to varying fluid volumes without structural modification

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system enables self-service through the simple pivot action that allows users to access trapped fluid without requiring disassembly or complex mechanisms. The base assembly is designed to be easily repositioned by the user, making the adaptation process intuitive and self-service oriented

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10688513B2Pump-type liquid dispenser
Publication Date: 2020.06.23 BIYANI ASHOK
  • US10688513B2 patent drawing
  • US10688513B2 patent drawing
  • US10688513B2 patent drawing

AI summary

A liquid dispenser is provided. The liquid dispenser includes a reservoir portion having a first circumferential sidewall, a first partition and an opposing second partition. The first circumferential sidewall and first and second partitions define an interior chamber. A dispenser portion extends from the first partition and has a neck defined by a second circumferential sidewall. The second circumferential sidewall defines a first internal passage. A bottom portion extends from the second partition and has a third circumferential sidewall. The third circumferential sidewall and the second partition define an internal cavity. A base assembly has a pivotable lid and is configured for a first, seated orientation within the internal cavity of the bottom portion and a second, seated orientation on the first partition. In the second orientation, the pivotable lid allows fluid access to the first internal passage of the dispenser portion.