Solid Brass Copper Bottle Opener Durability

Solution Overview

Problem

Existing bullet replica bottle openers made from hollow ammunition casings wear out quickly, failing after about 25 to 100 uses due to the attachment mechanism's limited durability.

Innovation Solution

A bullet replica bottle opener is designed with a solid brass cartridge and a solid copper bullet, featuring a machined cut for cap removal and a threaded attachment, providing enhanced material strength and durability, capable of withstanding up to several thousand uses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Shape

If hollow ammunition casings are used for the bottle opener, then the device can be made lightweight and visually resemble ammunition, but the attachment mechanism wears out quickly after 25-100 uses

Engineering Contradiction:

Improveappearance of ammunitionVSAvoiddurability of attachment mechanism

Core Design Contradiction:

ShapeVSReliability

Solution Approach 1:

The bottle opener combines two different materials - a hollow ammunition casing (outer shell) and a solid metal insert (inner core). The solid metal insert provides durable threading and structural support for repeated use, while the hollow casing maintains the ammunition appearance. This composite structure resolves the contradiction by allowing the device to be both visually authentic and mechanically durable.

Inventive Principle:

Principle #40Composite materials

2Reliability

If solid brass and copper construction is used, then the durability increases significantly for thousands of uses, but the weight and material cost increase

Engineering Contradiction:

Improvedurability of openerVSAvoidweight of bottle opener

Core Design Contradiction:

ReliabilityVSWeight of moving object

Solution Approach 1:

The bottle opener combines two different materials - a hollow ammunition casing (outer shell) and a solid metal insert (inner core). The solid metal insert provides durable threading and structural support for repeated use, while the hollow casing maintains the ammunition appearance. This composite structure resolves the contradiction by allowing the device to be both visually authentic and mechanically durable.

Inventive Principle:

Principle #40Composite materials

3Ease of manufacture

If hollow ammunition casings are used, then the device is lightweight and easy to manufacture, but the threaded attachment mechanism fails after limited use

Engineering Contradiction:

Improvesimplicity of constructionVSAvoidlifetime of attachment mechanism

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The bottle opener is divided into two separate components: a hollow ammunition casing and a solid metal insert. The solid insert contains the threaded attachment mechanism and is designed to withstand repeated use, while the hollow casing provides the appearance and is easier to manufacture. This segmentation allows each component to be optimized for its specific function, resolving the contradiction between ease of manufacture and reliability.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10280057B2Ammunition replica bottle opener

Publication Date: 2019.05.07 SCHULD JOHN M

AI summary

An ammunition replica bottle opener comprising: a generally solid brass portion; a generally solid copper portion attached to the brass portion; a cut machined into the solid brass portion configured to remove caps from bottles. A method of manufacturing an ammunition replica bottle opening, the method comprising: supplying a solid billet brass bar; machining the solid billet brass bar a cartridge with desired dimensions and with a threaded end; machining a bottle cap cut into the cartridge; supplying a solid billet copper bar; machining the solid billet copper bar to the desired dimensions to form a bullet; machining a threaded hole into one end of the bullet; attaching the bullet to the cartridge via the threaded end and threaded hole.