Simplified Squeeze Bottle Cap with Rotating Nozzle Leak Sealing

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Solution Overview

Problem

Existing squeeze bottle caps are structurally complicated, difficult to assemble and disassemble, prone to leaks, and messy in use.

Innovation Solution

A three-part cap comprising a lid component, nozzle component, and gasket component with a simplified design that allows the nozzle to rotate 90 degrees between open and closed positions, featuring a spherical base and conical stem for easy assembly and sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If rotating nozzles are used to control fluid dispensing, then control over fluid dispensing is improved, but device complexity increases and manufacturing difficulty increases

Engineering Contradiction:

Improvecontrol over fluid dispensingVSAvoidcap structure complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The cap is divided into three separate components: a lid component, a nozzle component, and a gasket component. This segmentation allows each part to be optimized independently for its specific function while simplifying the overall structure and manufacturing process compared to integrated complex designs.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The nozzle component is designed to rotate 90 degrees between open and closed positions relative to the bottle opening. This dynamic positioning provides control over fluid dispensing while maintaining a simple structural design that is easier to manufacture than fixed or multi-position complex mechanisms.

Inventive Principle:

Principle #15Dynamics

2Ease of operation

If rotating nozzles are used to control fluid dispensing, then control over fluid dispensing is improved, but ease of assembly and disassembly deteriorates

Engineering Contradiction:

Improvecontrol over fluid dispensingVSAvoidease of assembly and disassembly

Core Design Contradiction:

Ease of operationVSEase of manufacture

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The nozzle component fits within the lid component, and the gasket component fits within the lid component. This nested arrangement allows for compact design while maintaining ease of assembly and disassembly, as each component can be independently manufactured and then simply fitted together.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Ease of operation

If complex cap structures are used, then control over fluid dispensing is improved, but reliability deteriorates due to leaking

Engineering Contradiction:

Improvecontrol over fluid dispensingVSAvoidleak prevention

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

A gasket component is introduced as an intermediary element between the lid component and the bottle opening. This gasket provides a reliable sealing surface that prevents leaking while allowing the nozzle to rotate between open and closed positions, thus maintaining both control and reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The gasket component is designed as a flexible element that can deform to create a tight seal between the cap components and the bottle. This flexibility ensures reliable leak prevention while accommodating the rotational movement of the nozzle component.

Inventive Principle:

Principle #30Flexible shells and thin films

4Ease of manufacture

If simplified cap design is used, then ease of manufacture is improved, but control over fluid dispensing deteriorates

Engineering Contradiction:

Improveease of manufacture and assemblyVSAvoidcontrol over fluid dispensing

Core Design Contradiction:

Ease of manufactureVSEase of operation

Solution Approach 1:

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Different parts of the cap are designed with different properties optimized for their specific functions: the lid component provides structural support and threading, the nozzle component provides controlled dispensing through rotation, and the gasket component provides sealing. This local optimization achieves both simplicity and functionality.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS12358680B2Simplified cap for squeeze bottle

Publication Date: 2025.07.15 KITCHEN CONCEPTS UNLIMITED LLC

AI summary

A cap for a squeeze bottle that is simply constructed, easily manufactured, simple to assemble and easily reassembled. The cap includes three components, a rounded lid with a slot, a nozzle with a near spherical base and an extended cone portion, and a gasket with a platform, a nozzle seat and a skirt wall.