Combination Brush and Jag for Bore Cleaning

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Solution Overview

Problem

Current cleaning devices for gun barrels and other bores are either single-purpose, requiring separate tools for brushing and wiping, or single-action, limiting efficiency and thoroughness due to inability to apply even pressure and perform dual functions effectively.

Innovation Solution

A combination brush and jag with a stem securing sets of long and short bristles, where the short bristles have a transverse diameter slightly smaller than the bore, allowing a patch to be wrapped around them for even pressure and dual-action functionality, enabling simultaneous brushing and wiping with repeated strokes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single transverse diameter is used for the cleaning device, then the device structure is simple, but it cannot perform both brushing and wiping functions effectively

Engineering Contradiction:

Improvedual-purpose functionalityVSAvoiddevice structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cleaning device is segmented into two distinct sets of bristles with different transverse diameters - a first set with a larger diameter for brushing and a second set with a smaller diameter for wiping. This segmentation allows each set to perform its specific function optimally while maintaining a unified device structure.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cleaning device achieves multi-functionality by incorporating both brushing and wiping capabilities in a single device. The first set of bristles performs brushing through its larger transverse diameter, while the second set performs wiping through its smaller diameter, allowing one device to replace two separate tools.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Stress or pressure

If a single transverse diameter is used for the cleaning device, then manufacturing is simpler, but even pressure cannot be applied against bore walls

Engineering Contradiction:

Improvepressure distributionVSAvoidmanufacturing complexity

Core Design Contradiction:

Stress or pressureVSEase of manufacture

Solution Approach 1:

Different regions of the cleaning device have different transverse diameters tailored to their specific functions. The first set of bristles has a larger diameter optimized for brushing contact with bore walls, while the second set has a smaller diameter optimized for wiping with even pressure distribution, allowing each region to have the quality needed for its purpose.

Inventive Principle:

Principle #3Local quality

3Productivity

If single-action cleaning devices are used, then the device design is simpler, but cleaning efficiency is reduced due to reloading time

Engineering Contradiction:

Improvecleaning efficiencyVSAvoiddevice design

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The cleaning device enables continuous useful action by allowing multiple strokes without reloading. The patch is retained on the second set of bristles throughout multiple forward and backward strokes, eliminating reloading time and maintaining continuous cleaning action, thereby significantly improving productivity.

Inventive Principle:

Principle #20Continuity of useful action

4Area of stationary object

If the transverse diameter is too large, then brushing coverage is better, but the patch cannot be applied properly

Engineering Contradiction:

Improvebrushing coverageVSAvoidpatch application

Core Design Contradiction:

Area of stationary objectVSEase of operation

Solution Approach 1:

The bristle system is segmented into two sets with different diameters. The first set has a larger transverse diameter that provides comprehensive brushing coverage of the bore walls, while the second set has a smaller transverse diameter that allows proper patch application and retention, resolving the conflict between coverage and operability.

Inventive Principle:

Principle #1Segmentation

5Ease of operation

If the transverse diameter is too small, then patch application is easier, but brushing effectiveness is reduced

Engineering Contradiction:

Improvepatch applicationVSAvoidbrushing effectiveness

Core Design Contradiction:

Ease of operationVSProductivity

Solution Approach 1:

The cleaning device achieves universality by incorporating two sets of bristles with different diameters. The first set with larger diameter ensures effective brushing coverage, while the second set with smaller diameter facilitates easy patch application, allowing the single device to excel at both functions without compromise.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP2344832B1Combination brush and jag

Publication Date: 2016.06.01 SMITH SHANE

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AI summary

A combination brush and jag (100) comprising a stem (14), a set of short bristles (62) having a first transverse diameter (61); a set of long bristles (64) having a second transverse diameter (63); die set of short bristles (62) and long bristles (64) positioned adjacent to each other and secured in between the stem (14); and a patch (71) to cover the set of short bristles (62). The first transverse diameter (61) is smaller titan the second transverse diameter (63). The first transverse diameter (61) is also smaller than the bore diameter 1 or 8 of a bore (73) so as to define a circular gap (3) approximately the size of the thickness of the patch (71).