Handheld Scraper with Segmented Teeth for Scratch-Off Tickets

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Solution Overview

Problem

Existing methods for scratching scratch-off tickets, such as using coins, are inconvenient, particularly for individuals with limited dexterity, and can damage the tickets or leave residue, while lacking a secure grip and large surface area.

Innovation Solution

A handheld scratching device with a base, thumb grip indentation, and a semi-circular end featuring a plurality of scraping teeth, designed for secure and comfortable use, eliminating the need for coins and preventing ticket damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a coin is used to scratch off the opaque surface, then the scratching action can be performed, but it is inconvenient for individuals with limited dexterity, causes fatigue, and may damage the ticket

Engineering Contradiction:
Improveease of scratchingVSAvoidticket damage
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a dedicated scratching tool as an intermediary device between the user and the ticket. This tool features a secure grip mechanism and a specifically designed scratching edge that distributes pressure evenly, preventing direct transmission of excessive force to the ticket while maintaining scratching effectiveness.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The scratching tool is segmented into distinct functional zones: a grip area for finger placement, a transition zone, and a scratching edge with multiple teeth. This segmentation allows the user's force to be applied to the grip area while the distributed teeth at the edge perform the scratching, preventing concentration of force that could damage the ticket.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If a coin is used for scratching, then the tool is simple and portable, but it provides reduced surface area for gripping and causes hand fatigue

Engineering Contradiction:
Improvegrip comfortVSAvoidhand fatigue
Core Design Contradiction:
Ease of operationVSDuration of action of moving object

Solution Approach 1:

The grip area of the scratching tool incorporates curved and contoured surfaces that conform to the natural shape of fingers. This curvature increases the effective contact area between the user's hand and the tool, distributing pressure more evenly and reducing fatigue during prolonged use compared to the flat, limited surface of a coin.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Adaptability or versatility

If a coin is used to scratch the ticket, then no additional tool is needed, but it leaves dirty residue on the fingers and is awkward to grip

Engineering Contradiction:
Improvetool availabilityVSAvoidfingerprint residue
Core Design Contradiction:
Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent extracts the scratching function from the coin itself and places it on a dedicated tool with a grip surface. This separation allows the scratching function to be performed by the tool's edge while the user's fingers remain on the clean grip surface, preventing direct contact between fingers and the ticket's opaque coating, thus eliminating fingerprint residue.

Inventive Principle:
Principle #2Taking out (Extraction)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The device allows for easy, safe, and secure removal of opaque coatings from scratch-off tickets without damaging the underlying text, providing a comfortable grip and obviating the use of coins, thus enhancing user convenience and ticket integrity.

Implementation Method 1

a semi-circular end includes a scraping edge, including a plurality of scraping teeth for scraping or scratching the lottery ticket or scratch-off ticket

Methodology Applied
Scientific EffectAbrasion: Abrasion

Data Source

PatentUS20220184485A1Handheld Tool for Scraping Scratch-Off Tickets
Publication Date: 2022.06.16 TAYLOR YOLANDA
  • US20220184485A1 patent drawing
  • US20220184485A1 patent drawing
  • US20220184485A1 patent drawing

AI summary

The present invention relates to a handheld scratching device for scratch-off tickets. The device/tool is used for scraping opaque or film coatings of the scratch-off tickets such as a lottery tickets, to reveal hidden printed material thereunder. The device includes a base that includes a keyhole and a thumb grip indentation for securely and comfortably gripping the device during scraping. The device also includes a scratching edge for scraping the opaque or film coatings easily and securely. The keyhole is used for attaching the base to a key ring, keychain or keepsake holder. The device can come in multiple shapes, colors and designs, and can have messages or quotations printed or engraved in the base. The device obviates the use of a coin or any conventional sharp object to scrape a scratch-off ticket.