Enhanced Mobility Device Seat Assembly

Publication ID: 24-11857473_0006_PTD
Published: October 28, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Mobility Device Seat Assembly,” Published Technical Disclosure No. 24-11857473_0006_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857473_0006_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. 11,857,473.

Summary of the Inventive Concept

An advanced mobility device seat assembly featuring integrated sensors, adjustable components, and ergonomic support systems to improve user comfort, stability, and safety.

Background and Problem Solved

The original patent disclosed a mobility device seat with a coupling assembly for attaching a user controller to an armrest. However, the original design had limitations in terms of stability, comfort, and safety. The new inventive concept addresses these limitations by introducing innovative features such as load sensors, adjustable backrests, height-adjustable footrests, and automatic tie-down mechanisms.

Detailed Description of the Inventive Concept

The enhanced mobility device seat assembly comprises a seatpan mounting bracket with an integrated load sensor to monitor and adjust the seat's center of gravity for improved stability. The backrest shell is adjustable via a rotating knob with a mechanical stop to prevent over-rotation. A height-adjustable footrest features an integrated pressure sensor to detect and respond to user comfort preferences. Additionally, a tie-down mechanism with an automatic tensioning feature ensures a snug and safe fit when securing the mobility device seat to an automobile seat belt. The seat also incorporates an integrated ergonomic support system, including adjustable armrest structures and a lumbar support feature to promote user comfort and reduce fatigue.

Novelty and Inventive Step

The new inventive concept introduces novel features that improve the original design, including load sensors, adjustable backrests, height-adjustable footrests, and automatic tie-down mechanisms. These innovations provide a non-obvious solution to the limitations of the original patent, enhancing user comfort, stability, and safety.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in sensor types, adjustable component designs, and ergonomic support systems. For example, the load sensor could be replaced with a gyroscopic sensor or an accelerometer. The backrest angle adjust knob could be replaced with a motorized system or a manual lever. The integrated ergonomic support system could be modified to accommodate different user preferences or mobility requirements.

Potential Commercial Applications and Market

The enhanced mobility device seat assembly has significant commercial potential in the healthcare, rehabilitation, and mobility industries. The innovative features address key concerns for users with mobility impairments, providing a safer, more comfortable, and more efficient mobility experience. The market for mobility devices is growing rapidly, driven by an aging population and increasing awareness of accessibility needs.

CPC Classifications

SectionClassGroup
A A61 A61G5/1091
A A61 A61G5/1043
A A61 A61G5/1056
A A61 A61G5/04
A A61 A61G5/122
A A61 A61G5/125
A A61 A61G5/128

Original Patent Information

Patent NumberUS 11,857,473
TitleMobility device seat
Assignee(s)DEKA Products Limited Parternship