Secure Toolless Desk Assembly with Advanced Locking Mechanism

Publication ID: 24-11857068_0006_PTD

Published: November 07, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Secure Toolless Desk Assembly with Advanced Locking Mechanism,” Published Technical Disclosure No. 24-11857068_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857068_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. 11,857,068.

Background and Problem Solved

The original toolless attachment assembly, disclosed in the prior patent, allowed for convenient and efficient attachment of motor housing and/or leg assembly to an electronic height-adjustable desk. However, it lacked a locking mechanism, which could lead to accidental detachment and compromise the stability of the desk. The present invention addresses this limitation by introducing a locking mechanism, ensuring a secure attachment and preventing potential hazards.

Novelty and Inventive Step

The introduction of the locking mechanism and safety mechanism in the enhanced toolless attachment assembly constitutes a novel and non-obvious improvement over the original patent. These features provide a significant enhancement to the assembly process, ensuring a secure and efficient attachment of the leg assembly to the electronic height-adjustable desk.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include variations in the design of the locking mechanism, such as a magnetic or mechanical latch. Additionally, the safety mechanism could be implemented using different technologies, such as sensors or limit switches. These variations would ensure broad conceptual coverage and adaptability to different applications and industries.

Potential Commercial Applications and Market

The enhanced toolless attachment assembly has significant commercial potential in the office furniture industry, particularly in the market for electronic height-adjustable desks. The invention's improved safety and efficiency features would appeal to manufacturers and consumers seeking reliable and convenient assembly solutions. The invention could also be adapted for use in other industries, such as healthcare or manufacturing, where adjustable workstations are increasingly prevalent.

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Furniture design and mechanical attachment systems, specifically for height-adjustable desks and modular furniture assemblies. Requires expertise in mechanical engineering, precision manufacturing, and ergonomic furniture mechanisms

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with 3-5 years experience in furniture design, familiar with toolless attachment mechanisms, manufacturing tolerances, and modular assembly techniques

Obviousness Rationale

A person of ordinary skill would recognize that the PTD's proposed variations represent predictable engineering improvements to the existing toolless attachment assembly. The additional locking and safety mechanisms are logical extensions of the source patent's core attachment design, utilizing standard mechanical engineering principles to enhance functional reliability. These modifications represent incremental innovations that would be apparent to a skilled practitioner seeking to optimize the original attachment system.

Obvious Combinations & Variations

Source Patent Element

Lever-based connector assembly with pivoting mechanism for attaching leg to rail

PTD Variation

Adding a locking mechanism to prevent accidental detachment

Obviousness Reasoning

A PHOSITA would recognize that preventing unintended disconnection is a standard design improvement using known mechanical retention techniques

Source Patent Element

Sliding connector assembly with positional flexibility

PTD Variation

Implementing a safety mechanism to prevent over-tightening

Obviousness Reasoning

Limiting mechanical stress and preventing potential damage is a predictable engineering solution using standard limit switches or mechanical stops

Source Patent Element

Protrusion-based friction engagement between connector and rail

PTD Variation

Introducing automated alignment detection for secure attachment

Obviousness Reasoning

Using sensors or mechanical indicators to confirm proper positioning is a known technique for improving assembly reliability

Source Patent Element

Lever with multiple positional states for attachment

PTD Variation

Alternative locking mechanisms like magnetic or mechanical latches

Obviousness Reasoning

Substituting equivalent mechanical fastening methods represents an obvious design choice with predictable functional results

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857068, the proposed technical variations represent obvious modifications to the existing toolless attachment assembly that would be readily conceived by a person having ordinary skill in the art. The incremental improvements in locking, safety, and alignment mechanisms constitute predictable engineering solutions that do not rise to the level of non-obvious innovation, thus rendering potential claims in this domain anticipated and unpatentable.

Original Patent Information

Patent Number	US 11,857,068
Title	Toolless attachment assembly
Assignee(s)	Poppin, Inc.