Double Bingo Dauber Applicator Head for Single-Press Marking

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Solution Overview

Problem

Existing bingo daubers are inadequate for marking both numbers in a double bingo card space simultaneously, leading to confusion and incomplete marking.

Innovation Solution

A double bingo dauber with an oversized applicator head and ink applicator assembly that allows simultaneous marking of both numbers in a double bingo card space in a single pressing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If traditional small daubers are used to mark double bingo cards, then the dauber can fit in standard bingo spaces, but it cannot simultaneously mark both numbers in a space, leading to incomplete marking and confusion

Engineering Contradiction:

Improveapplicator head areaVSAvoiddauber structure

Core Design Contradiction:

Area of moving objectVSDevice complexity

Solution Approach 1:

The patent combines multiple marking functions into a single applicator head that can mark both numbers in a double bingo space simultaneously. The applicator head is designed with a larger surface area that accommodates marking two numbers in one pressing action, merging what would otherwise require two separate marking operations into a single unified action.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The applicator head transitions from a traditional small circular shape to a larger rectangular or oval shape that spans the dimensions of a double bingo space. This dimensional change allows the applicator to cover and mark both numbers within the expanded space, effectively using the additional spatial dimension provided by the double bingo format.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Manufacturing precision

If traditional daubers are used in double bingo, then the dauber structure remains simple, but considerable unmarked area remains in each space, reducing marking completeness

Engineering Contradiction:

Improvemarking completenessVSAvoidmarking clarity

Core Design Contradiction:

Manufacturing precisionVSEase of operation

Solution Approach 1:

The applicator head is designed with specific local characteristics - a larger surface area with appropriate shape and ink distribution properties - that are optimized for the specific requirement of marking double bingo spaces. The ink pad or applicator surface is configured to deliver ink across the entire applicator head area, ensuring both numbers receive adequate marking coverage.

Inventive Principle:

Principle #3Local quality

3Productivity

If players use traditional daubers to mark double bingo cards, then the dauber can be easily handled, but players must press twice to mark both numbers, increasing operation time and potential for error

Engineering Contradiction:

Improvemarking speedVSAvoidtime to mark space

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The applicator head is pre-configured with sufficient ink capacity and surface area to mark both numbers in a single pressing action. The ink distribution system is designed in advance to ensure adequate ink supply across the entire applicator head, allowing the player to complete the marking of both numbers without needing to re-press or reposition the dauber.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12496508B1Double bingo dauber

Publication Date: 2025.12.16 HARRIS RANDALL

AI summary

A double bingo dauber includes a handle and an ink applicator assembly. The handle includes an interior cavity containing a supply of ink therein. The ink applicator assembly is connected to an end of the handle and includes an applicator head designed to simultaneously mark both numbers in a space of a double bingo card in a single pressing.