Spa Jet Lateral Outlet Adjustment With Constant Outlet Depth

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Solution Overview

Problem

Existing spa jets lack the ability to be selectively adjustable along their width, limiting the user's control over the direction and intensity of water therapy effects.

Innovation Solution

A spa jet assembly with a housing featuring a proximal outlet that is laterally adjustable along the width of the housing, connected by a telescoping tube system with rotatable joints, allowing for angular adjustments of up to 90° while maintaining a constant depth, and optionally a selectively sealable channel for precise positioning.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed spa jet design is used, then the structure is simple and easy to manufacture, but the user cannot adjust the direction and position of water flow for personalized therapy

Engineering Contradiction:
Improveadjustability of water flow directionVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the proximal outlet movable along a channel within the housing, allowing it to be repositioned from a first position to a second position. This dynamic adjustment capability enables users to change water flow direction while maintaining structural simplicity through a guided movement path rather than complex mechanical linkages.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent segments the outlet structure from the main housing by creating a movable proximal outlet that can be independently repositioned along a channel. This segmentation allows the outlet to be adjusted without moving the entire housing, providing adaptability while keeping the overall device structure relatively simple.

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If the proximal outlet is made movable along the width, then user control over water therapy direction is improved, but the sealing and positioning precision becomes more difficult to maintain

Engineering Contradiction:
Improveuser control over water therapyVSAvoidsealing and positioning precision
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The patent introduces a channel as an intermediary structure that guides the movement of the proximal outlet. This channel serves as a mediator between the movable outlet and the housing, providing a predefined path that ensures precise positioning while maintaining effective sealing through the structured interface between the outlet and channel walls.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex mechanical sealing systems with a simpler channel-based guidance system. The channel structure provides both positioning guidance and sealing functionality through its geometry, eliminating the need for additional complex mechanical sealing components while maintaining precision.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If a telescoping tube system with rotatable joints is used, then the angular adjustment range is increased, but the device complexity and potential leakage points are increased

Engineering Contradiction:
Improveangular adjustment rangeVSAvoidleakage resistance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies dynamics by incorporating rotatable joints in the tube system, allowing the tubes to rotate and accommodate angular adjustments up to 90 degrees. This dynamic capability enables wide angular adjustment while maintaining connection integrity through the rotatable joint design that preserves sealing during movement.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the angular parameter of the tube connections through rotatable joints, allowing the system to adapt to different angles while maintaining reliable connections. The ability to rotate the tubes changes the spatial orientation parameter without compromising the sealing integrity of the fluid pathway.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4364715B1Systems and methods for a spa jet selectively adjustable along a width
Publication Date: 2025.09.03 BULLFROG INT L C
  • EP4364715B1 patent drawingFigure 1
  • EP4364715B1 patent drawingFigure 2
  • EP4364715B1 patent drawingFigure 3~4

AI summary

This disclosure relates generally to jets for spas and, more specifically, to jets that can be adjusted laterally along a width of the proximal end of the jet housing. The angular adjustment of the proximal outlet of the jet may be at least 30°. In some embodiments, the jet assembly includes a housing with a distal inlet at a distal end of the housing and a proximal outlet at a proximal end of the housing, the proximal outlet laterally adjustable along a width of the proximal end of the housing, with the proximal outlet maintaining a constant depth with respect to the proximal end of the housing as the proximal outlet is laterally adjusted along the width of the proximal end of the housing.