Adaptive Wheelchair Suspension Systems for Specialized Environments

Publication ID: 24-11857470_0004_PTD
Published: October 28, 2025
Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Adaptive Wheelchair Suspension Systems for Specialized Environments,” Published Technical Disclosure No. 24-11857470_0004_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857470_0004_PTD
This technical disclosure describes improvements that would be readily apparent to a Person Having Ordinary Skill In The Art (PHOSITA) when considered in combination with the foundational architecture disclosed in U.S. Patent No. 11,857,470.

Summary of the Inventive Concept

The inventive concept disclosed herein is a series of adaptive wheelchair suspension systems designed to address the unique challenges of specific operational environments, including high-security needs, disaster relief, extreme weather conditions, search and rescue operations, and high-altitude environments.

Background and Problem Solved

The original patent disclosed a wheelchair suspension system that improved the overall stability and maneuverability of wheelchairs. However, this system may not be suitable for specialized environments that require additional features to ensure safe and reliable operation. The new inventive concept addresses this limitation by incorporating specialized components and mechanisms that cater to the specific demands of each environment.

Detailed Description of the Inventive Concept

The adaptive wheelchair suspension systems comprise a frame, a seat supported by the frame, at least one front anti-tip wheel coupled to the frame, and a suspension mounting each of the drive assemblies to the frame. The suspension further comprises specialized mechanisms, such as tamper-evident mechanisms, debris-clearing mechanisms, water-resistant coatings, winch mechanisms, and pressure-regulation mechanisms, which enable the wheelchair to operate effectively in high-security, disaster relief, extreme weather, search and rescue, and high-altitude environments.

Novelty and Inventive Step

The new inventive concept is novel and non-obvious in that it combines the original suspension system with specialized mechanisms that address the unique challenges of specific operational environments. The incorporation of these mechanisms provides a new and innovative solution that was not anticipated by the original patent.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include the use of different materials or configurations for the specialized mechanisms, such as using advanced materials for the water-resistant coating or incorporating sensors to detect and respond to environmental changes. Additionally, the inventive concept could be adapted for use in other specialized environments, such as agricultural or construction settings.

Potential Commercial Applications and Market

The adaptive wheelchair suspension systems have significant commercial potential in various industries, including healthcare, emergency services, and outdoor recreation. The systems could be marketed as specialized products or integrated into existing wheelchair designs to provide users with enhanced safety and mobility in challenging environments.

CPC Classifications

SectionClassGroup
A A61 A61G5/10
A A61 A61G5/04
A A61 A61G5/042
A A61 A61G5/043
A A61 A61G5/06
A A61 A61G5/1078
A A61 A61G5/1089
B B60 B60G2300/24
Y Y10 Y10S180/907

Original Patent Information

Patent NumberUS 11,857,470
TitleWheelchair suspension
Assignee(s)INVACARE CORPORATION