Advanced Furniture Drive Device: Smart Ejection Mechanism

Publication ID: 24-11857070_0001_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Furniture Drive Device: Smart Ejection Mechanism,” Published Technical Disclosure No. 24-11857070_0001_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857070_0001_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 the drive device for moveable furniture parts has limitations in terms of safety, efficiency, and user experience. Specifically, the ejection force storage means can be unreliable, and the lack of real-time monitoring and adjustment of the ejection force can lead to accidents or damage to the furniture. The present invention addresses these limitations by introducing advanced ejection mechanisms that provide real-time monitoring and adjustment of the ejection force, redundant ejection force storage means, self-lubricating ejection slides, and modular ejection devices with quick-release mechanisms.

Novelty and Inventive Step

The present invention introduces several novel features that distinguish it from the original patent. The integrated sensor for detecting the furniture part's position and velocity, the dynamically adjustable ejection force, the redundant ejection force storage means, the self-lubricating ejection slide, and the modular ejection device with a quick-release mechanism are all new and non-obvious features that provide a significant improvement over the original patent.

Alternative Embodiments and Variations

The invention can be implemented in various ways, such as using different types of sensors, ejection force storage means, and ejection slides. The modular ejection device can be designed to be compatible with different types of furniture parts, and the quick-release mechanism can be adapted for different types of carriers. Additionally, the invention can be integrated with other systems, such as smart home systems, to provide additional functionality and convenience.

Potential Commercial Applications and Market

The enhanced drive device for moveable furniture parts has significant commercial potential in the furniture industry, particularly in the design and manufacture of high-end furniture. The invention can also be applied to other industries, such as healthcare, where safe and efficient ejection of furniture parts is critical. The target market includes furniture manufacturers, designers, and consumers who value safety, efficiency, and convenience.

Field of Art

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

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in furniture hardware design, familiar with precision motion control, spring-based actuation systems, and mechanical coupling techniques, typically holding a bachelor's or master's degree in mechanical engineering

Obviousness Rationale

A person having ordinary skill would recognize that the published technical disclosure represents predictable variations on the source patent's fundamental drawer ejection mechanism by applying standard engineering design techniques such as sensor integration, force modulation, and modular component design. The core functional principles of the original drive device remain unchanged, with the proposed modifications representing incremental improvements using known technological approaches. These variations would be considered obvious extensions of the existing technical teachings.

Obvious Combinations & Variations

Source Patent Element
Carrier with ejection device for movable furniture part
PTD Variation
Integrated sensor for detecting furniture part position and velocity
Obviousness Reasoning
Adding position and velocity sensing to a mechanical system is a standard design optimization technique, representing a predictable application of known sensor technologies to improve system performance
Source Patent Element
Ejection force storage means on carrier
PTD Variation
Redundant ejection force storage means with failsafe control system
Obviousness Reasoning
Implementing redundant mechanical systems is a well-established reliability engineering practice, representing a finite and predictable solution to potential mechanical failure modes
Source Patent Element
Ejection slide mechanism
PTD Variation
Self-lubricating ejection slide with reduced friction coefficient
Obviousness Reasoning
Material and surface treatment improvements are routine design choices in mechanical systems, representing a known technique for enhancing component performance and durability
Source Patent Element
Carrier with transmission element
PTD Variation
Modular ejection device with quick-release mechanism
Obviousness Reasoning
Designing modular mechanical interfaces is a standard engineering approach for improving maintenance, replacement, and system adaptability, representing a predictable design evolution
Source Patent Element
Basic ejection force generation mechanism
PTD Variation
Dynamically adjustable ejection force based on real-time sensor feedback
Obviousness Reasoning
Implementing adaptive control systems using sensor feedback is a standard control engineering technique, representing a predictable application of known feedback control principles
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857070 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations obvious, as they represent predictable engineering modifications using known techniques to enhance the performance, reliability, and adaptability of a standard furniture part drive mechanism. The proposed technical variations constitute obvious design extensions that would be readily conceived by an ordinarily skilled practitioner without requiring inventive insight.

Original Patent Information

Patent NumberUS 11,857,070
TitleDrive device for a moveable furniture part
Assignee(s)JULIUS BLUM GMBH