Advanced Self-Lubricating Jewelry Hinge Assembly

Publication ID: 24-11857038_0006_PTD

Published: October 27, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Self-Lubricating Jewelry Hinge Assembly,” Published Technical Disclosure No. 24-11857038_0006_PTD, Published October 27, 2025, available at https://archive.pr1or.art/24-11857038_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. 11,857,038.

Background and Problem Solved

The original patent disclosed a spring-biased hinge assembly for jewelry, which, although functional, had limitations in terms of durability and versatility. The present invention addresses these limitations by introducing a self-lubricating bearing and shock-absorbing mechanism, which reduce friction, wear, and tear, and enhance the overall performance of the hinge assembly.

Novelty and Inventive Step

The novelty of the present invention lies in the integration of a self-lubricating bearing and shock-absorbing mechanism into the hinge assembly, which provides a significant improvement over the original patent. The inventive step is the recognition of the need for a more durable and efficient hinge assembly, and the implementation of a self-lubricating bearing and shock-absorbing mechanism to achieve this goal.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include the use of different materials for the self-lubricating bearing, such as ceramic or graphite, or the incorporation of additional features, such as a locking mechanism or adjustable tension. Variations of the invention could also include different hinge assembly designs, such as a ball-and-socket joint or a pivot pin with a built-in spring.

Potential Commercial Applications and Market

The improved jewelry hinge assembly has significant commercial potential in the jewelry industry, particularly in the high-end and luxury segments. The invention's durability, versatility, and enhanced user experience make it an attractive solution for jewelry manufacturers and designers. The target market includes luxury jewelry brands, high-end retailers, and consumers seeking premium jewelry pieces.

CPC Classifications

Section	Class	Group
A	A44	A44C5/12

Section 103 Obviousness Analysis (PHOSITA)

▼

Field of Art

Jewelry design and mechanical engineering, specifically focusing on hinge assemblies for wearable accessories, with expertise in mechanical coupling, spring mechanisms, and material interactions

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer or jewelry designer with 3-5 years of experience in precision mechanical assemblies, familiar with materials science, tribology, and mechanical design principles for wearable accessories

Obviousness Rationale

A person of ordinary skill would recognize that enhancing the existing spring-biased hinge assembly with self-lubricating bearings and shock absorption represents a predictable engineering improvement. The source patent establishes a foundational hinge mechanism for jewelry, and the PTD's variations are logical extensions using known tribological and mechanical engineering techniques. These modifications address inherent friction and wear challenges in mechanical joints through standard design optimization strategies.

Obvious Combinations & Variations

Source Patent Element

Rotatably coupled rigid portions with a pivot point and spring mechanism

PTD Variation

Integration of self-lubricating bearing into hinge pin

Obviousness Reasoning

Reducing friction in mechanical joints is a well-established engineering practice, and applying self-lubricating materials to pivot points represents a predictable solution for enhancing durability

Source Patent Element

Spring-biased hinge for jewelry band

PTD Variation

Shock-absorbing mechanism to reduce impact during opening/closing

Obviousness Reasoning

Mitigating mechanical stress is a standard design consideration, and introducing shock absorption represents a finite, predictable engineering solution for improving mechanical joint performance

Source Patent Element

Wrist cuff with rigid portions and pivot mechanism

PTD Variation

Hinge assembly designed to accommodate various band shapes and sizes

Obviousness Reasoning

Designing modular mechanical interfaces that can adapt to different geometries is a common engineering approach, representing a straightforward design variation within a skilled practitioner's capabilities

Source Patent Element

Leaf spring mechanism for biasing hinge

PTD Variation

Alternative spring materials like ceramic or graphite for bearing surfaces

Obviousness Reasoning

Material substitution using known tribological alternatives is a standard engineering method for optimizing mechanical performance, representing a predictable design iteration

Source Patent Element

Pivoting jewelry band with spring mechanism

PTD Variation

Incorporating additional locking or tension adjustment features

Obviousness Reasoning

Adding mechanical control features to existing assemblies is a routine design enhancement that would be obvious to a skilled practitioner seeking to improve functional versatility

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857038 and the published technical disclosure, a person having ordinary skill in the art would find the claimed variations of a jewelry hinge assembly with self-lubricating bearings, shock absorption, and modular design to be obvious extensions of the prior art. The disclosed improvements represent predictable engineering solutions using known techniques, thereby rendering potential patent claims obvious under 35 U.S.C. Section 103.

Original Patent Information

Patent Number	US 11,857,038
Title	Jewelry with hinge assembly
Assignee(s)	David Yurman IP LLC