Pivotal Cap Closure With Self-Aligning Locking Projections

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing closures for containers often face challenges in securely locking the cap and base together, making it difficult for users to easily align and close the cap, especially when the cap is in the closed position.

Innovation Solution

A closure design featuring a projection on the cap and a corresponding projection on the base that interfaces when the cap is closed, which biases the cap's axis to align with the base's axis, facilitating easier closure and secure locking.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional closure design without projections is used, then the structure is simpler, but the cap and base are difficult to align and lock securely in the closed position

Engineering Contradiction:

Improvesecure locking of cap and baseVSAvoidstructure with projections

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The projection on the cap and corresponding projection on the base automatically align the cap with the base during the closing motion. The user simply needs to initiate the closing action, and the projections self-align and self-lock without requiring precise manual alignment or additional alignment mechanisms.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The projection acts as an intermediary element between the cap and base, facilitating their alignment and secure connection. The projection on the cap interfaces with the projection on the base to ensure proper positioning and locking.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If a projection-based alignment mechanism is added to the closure, then the ease of closing and alignment is improved, but the device complexity increases

Engineering Contradiction:

Improveease of closing cap and baseVSAvoidclosure structure with projections

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The projection structure performs the alignment function automatically during normal closing operation. The user does not need to manually align the cap with the base - the projections guide the alignment as the cap is closed, making the operation as easy as a simple closing motion.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The closure is divided into functional segments: the cap with its projection, the base with its projection, and the hinge mechanism. This segmentation allows each component to perform its specific function while maintaining overall simplicity.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12570442B2Closure with pivotal cap

Publication Date: 2026.03.10 SILGAN WHITE CAP LLC

AI summary

A closure including a base that couples to a container neck of a container, and a cap that is pivotally coupled to the base. A projection is coupled to a front of a panel of the base panel and extends upwards and radially outward from the panel. The cap interfaces with the projection when pivoting from the closed position.