Rotatable Selector Knob Shaft for Multi-Port Gas Distribution

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Solution Overview

Problem

Current gas and fluid distribution systems lack a simple, reliable, and compact design that allows for immediate selection and routing of multiple sources to destinations without the need for external swivels, particularly in adverse environments where quick switching between gas supplies is critical.

Innovation Solution

A rotatable Selector Knob/Shaft assembly that internally routes media between multiple ports, allowing for selection and redirection at a predetermined angle, with the ability to shut off flow entirely, using a compact design that integrates media passage through the knob and shaft, eliminating the need for external connectors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a traditional external swivel system is used for port selection, then the device can route media between multiple ports, but the device complexity and external connection requirements increase

Engineering Contradiction:
Improveport selection capabilityVSAvoidexternal swivel system
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the selector mechanism and media passage into a single integrated Knob/Shaft assembly. The hollow shaft serves dual purposes: as the rotational selector component and as the conduit for media flow. This eliminates the need for separate external swivels and reduces overall system complexity while maintaining full port selection capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The Knob/Shaft assembly performs multiple functions simultaneously: it acts as the selection mechanism for choosing between multiple ports, serves as the rotational element for changing flow direction, and functions as the media passage conduit. This multi-functionality reduces the number of separate components needed in the system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple external connectors are used for port switching, then media can be routed to multiple destinations, but the risk of disconnection and system failure increases

Engineering Contradiction:
Improvemedia routing capabilityVSAvoidconnection stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

By combining the media passage entirely within the hollow shaft rather than using external connectors, the patent eliminates multiple connection points that could fail. The media flows continuously through the internal passage of the shaft from the selected port to the destination, removing disconnection risks associated with external fittings.

Inventive Principle:
Principle #5Merging (Combining)

3Volume of moving object

If a compact internal design is used, then the device size is reduced, but the ability to route media through the selector mechanism becomes more difficult

Engineering Contradiction:
Improvedevice sizeVSAvoidmedia routing through selector
Core Design Contradiction:
Volume of moving objectVSEase of manufacture

Solution Approach 1:

The patent resolves the manufacturing challenge by making the media passage an integral part of the shaft structure itself. The hollow shaft is manufactured as a single component with the passage built-in, eliminating the need for separate routing channels or complex internal fittings. This approach maintains compact size while simplifying manufacturing.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS10844968B2Multiple port distribution manifold
Publication Date: 2020.11.24 MESSNER WILLIAM
  • US10844968B2 patent drawing
  • US10844968B2 patent drawing
  • US10844968B2 patent drawing

AI summary

A mountable Multiple Port Distribution Manifold consisting of a selector knob through which a gas of liquid media may internally flow, between a hollow port at one end and a side port of the rotatable Shaft within the Manifold. By rotating the Knob/Shaft, the side hole port of the Knob/Shaft assembly may selectively intersect with multiple ports within the Manifold. Said assembly also provides of an “off” position, where no Shaft/Manifold intersection allows port to port connection. The invention may be constructed of any suitable material, natural or synthetic, that is sufficiently strong to withstand the internal pressures of a gas or liquid media routed within without leakage.