Intelligent Furniture Drive Device: Smart Ejection Technology

Publication ID: 24-11857070_0006_PTD

Published: November 07, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Intelligent Furniture Drive Device: Smart Ejection Technology,” Published Technical Disclosure No. 24-11857070_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857070_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. 11,857,070.

Background and Problem Solved

The original patent for a drive device for moveable furniture parts ( drawers) had limitations in terms of ejection force control, safety, and efficiency. The present invention addresses these limitations by introducing intelligent features that dynamically adjust ejection force, prevent sudden jerks, ensure safety, and maintain optimal performance.

Novelty and Inventive Step

The new claims introduce novel and non-obvious features that significantly improve the original drive device. The load-sensing module, soft-start mechanism, safety override system, and self-calibration module are not anticipated by the original patent and provide a distinct inventive step.

Alternative Embodiments and Variations

Alternative embodiments may include different types of load-sensing modules, such as strain gauges or pressure sensors. The soft-start mechanism could be implemented using a ramp-up function or a delay timer. The safety override system could be integrated with external sensors or alarms. The self-calibration module could be triggered by usage patterns or environmental factors.

Potential Commercial Applications and Market

The intelligent drive device has significant commercial potential in the furniture industry, particularly for high-end or smart furniture applications. It can also be applied to other industries, such as healthcare or aerospace, where efficient and safe ejection mechanisms are critical.

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Mechanical furniture hardware design, specifically drive mechanisms for movable furniture components with focus on ejection and force transfer systems

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in furniture hardware design, familiar with linear motion mechanisms, force transfer systems, and adaptive control technologies for mechanical components

Obviousness Rationale

A person of ordinary skill would recognize that the PTD's variations represent predictable engineering solutions to known challenges in furniture drive mechanisms. The load-sensing, soft-start, and self-calibration features are logical extensions of the source patent's core ejection device technology. These modifications represent standard design optimization techniques that would be apparent to a skilled practitioner seeking to improve furniture component movement systems.

Obvious Combinations & Variations

Source Patent Element

Ejection device with force storage means for moving furniture components

PTD Variation

Load-sensing module for dynamically adjusting ejection force based on component weight

Obviousness Reasoning

Adaptive force control is a known technique in mechanical systems, and a PHOSITA would recognize the predictable benefit of matching ejection force to specific component characteristics

Source Patent Element

Carrier and ejection slide mechanism for furniture part movement

PTD Variation

Soft-start mechanism for gradually increasing ejection force

Obviousness Reasoning

Controlled acceleration is a standard engineering approach to prevent mechanical shock and wear, representing a predictable design improvement

Source Patent Element

Ejection device for moving furniture parts

PTD Variation

Safety override system to disable ejection in case of obstruction

Obviousness Reasoning

Safety mechanisms are standard practice in mechanical systems, and integrating obstruction detection represents a logical extension of existing design principles

Source Patent Element

Force storage means for furniture component movement

PTD Variation

Self-calibration module for periodically adjusting ejection performance

Obviousness Reasoning

Adaptive maintenance and performance optimization are well-known techniques in mechanical system design, representing a predictable engineering solution

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857070, the variations disclosed herein would be obvious to a person having ordinary skill in the art of furniture drive mechanisms. The incremental improvements represent standard engineering approaches to optimizing mechanical movement systems, and thus fail to meet the non-obviousness requirements of patentability under 35 U.S.C. Section 103.

Original Patent Information

Patent Number	US 11,857,070
Title	Drive device for a moveable furniture part
Assignee(s)	JULIUS BLUM GMBH