Flexible TPU Spout Cover for Bartender Finger Safety

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Solution Overview

Problem

Bartenders often suffer from finger injuries due to scraping against metal spouts on alcohol bottles, and there is a need to differentiate between various alcohol bottles.

Innovation Solution

A 2-piece design, comprising a top piece with conical shape and ridges, and a sleeve with a nipple for secure locking, made from food-grade materials like PLA, which fits over the metal spout to prevent finger injuries and allow bottle identification by color.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a metal spout is used on alcohol bottles, then the bottle can be sealed and poured effectively, but the metal spout causes finger injuries to bartenders

Engineering Contradiction:

Improvesealing effectivenessVSAvoidfinger injuries

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

A soft protective sleeve made of food-grade silicone or rubber is introduced as an intermediary between the metal spout and the bartender's fingers. This sleeve covers the sharp edges of the metal spout, eliminating the harmful cutting effect while preserving the spout's sealing and pouring functions

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

A flexible protective cover made of soft material (silicone or rubber) is designed to fit over the rigid metal spout. This flexible shell conforms to the spout's shape while providing a smooth, safe surface that prevents finger injuries during bottle handling

Inventive Principle:

Principle #30Flexible shells and thin films

2Object-affected harmful factors

If a protective cover is added to the metal spout, then finger injuries are prevented, but the device complexity increases

Engineering Contradiction:

Improvefinger injuriesVSAvoidspout structure

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The protective cover is designed as a separate, removable piece that can be easily attached to and removed from the metal spout. This segmentation allows the protective function to be added without permanently complicating the spout structure, and enables easy cleaning and replacement

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The protective sleeve serves multiple functions: it protects fingers from injuries, provides grip assistance, and can be used to identify different alcohol types through color coding. This multi-functionality justifies the added component by delivering multiple benefits from a single simple addition

Inventive Principle:

Principle #6Universality (Multi-functionality)

3Object-affected harmful factors

If the protective cover is made from soft materials like silicone or rubber, then finger safety is improved, but the manufacturing cost increases

Engineering Contradiction:

Improvefinger injuriesVSAvoidmanufacturing cost

Core Design Contradiction:

Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The protective cover is designed as a thin-walled flexible shell that requires minimal material to achieve the safety function. This reduces material costs while maintaining the protective properties. The simple geometric shape allows for efficient molding and production

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

The protective cover is designed as a low-cost, potentially disposable component that can be easily manufactured and replaced if needed. Using inexpensive food-grade silicone or rubber allows for mass production at minimal cost, making the safety improvement economically viable

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Data Source

PatentUS20250178799A1"Bar helper" or "Topper"

Publication Date: 2025.06.05 CASANOVA CHRISTIAN FRANCIS

AI summary

A problem exists where bartenders scrape the inside of their finger tips on the metal alcohol pour spouts the “Bar Helper/Topper” prevents injury to their fingers you can reference FIG. 7 for a picture. The color coding lets them know what alcohol they are pouring also helping new bartenders know at a glance witch alcohol needs to be re-stocked it is made out of a soft flexible rubber polyurethane (TPU) witch is food and drink safe and can be washed/re-used If needed.