Convertible Strap Assembly for Diverse Applications

Publication ID: 24-11857853_0007_PTD
Published: October 28, 2025
Category:New Applications & Use Cases

Legal Citation

pr1or.art Inc., “Convertible Strap Assembly for Diverse Applications,” Published Technical Disclosure No. 24-11857853_0007_PTD, Published October 28, 2025, available at https://archive.pr1or.art/24-11857853_0007_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. 11,857,853.

Summary of the Inventive Concept

The present disclosure relates to a versatile strap assembly, adaptable for various industries, including backpacks, musical instruments, and luggage, providing enhanced user experience and comfort through convertible single-strap to double-strap configurations.

Background and Problem Solved

The original golf bag convertible strap assembly patent addressed the need for comfortable and adjustable carrying solutions in the golf industry. However, this innovative concept extends the core technology to cater to diverse applications, overcoming the limitations of the original patent by providing a universal strap assembly design that can be seamlessly integrated into various industries.

Detailed Description of the Inventive Concept

The convertible strap assembly comprises a first strap with a first section and a second section, and a second strap removably engaged with a back puck. The first strap is permanently coupled to the backpack, musical instrument case, or luggage piece, while the second strap can be translationally engaged with the back puck to convert the single-strap configuration to a double-strap configuration. This design enables users to switch between carrying modes, ensuring optimal comfort and support.

Novelty and Inventive Step

The novelty of this inventive concept lies in its adaptability to diverse applications, extending the original golf bag strap assembly design to cater to the unique requirements of backpacks, musical instruments, and luggage. The inventive step is the integration of the convertible strap assembly into these new industries, providing a universal solution for comfortable and adjustable carrying.

Alternative Embodiments and Variations

Alternative embodiments of the convertible strap assembly could include adjustable strap lengths, padded straps for enhanced comfort, and customizable back puck designs to accommodate various industries. Variations may also include the use of different materials, such as nylon or polyester, to optimize durability and weight.

Potential Commercial Applications and Market

The convertible strap assembly has significant commercial potential in the backpack, musical instrument, and luggage industries, offering a unique selling point for manufacturers seeking to enhance user experience and comfort. Target markets include outdoor enthusiasts, musicians, and travelers, who will benefit from the versatility and adaptability of this innovative strap assembly design.

CPC Classifications

SectionClassGroup
A A63 A63B55/408
A A45 A45C13/30
A A45 A45F3/04

Field of Art

Carrying equipment design, specifically portable load-bearing systems including bags, cases, and personal carrying devices with convertible strap configurations

Person of Ordinary Skill (PHOSITA) Profile

An engineer or designer with expertise in ergonomic load-bearing systems, familiar with strap attachment mechanisms, material selection, and user-adaptable carrying configurations across multiple product categories

Obviousness Rationale

A PHOSITA would recognize the fundamental transferability of the golf bag strap assembly's convertible design to other carrying systems. The core mechanical principles of strap attachment, translational engagement with a back puck, and single/double configuration switching are universally applicable across different load-bearing equipment categories. The technical variations presented in the PTD represent predictable design extensions that leverage known mechanical principles from the source patent.

Obvious Combinations & Variations

Source Patent Element
Convertible strap system with first and second straps engaged via back puck
PTD Variation
Applying identical strap conversion mechanism to backpacks, musical instrument cases, and luggage
Obviousness Reasoning
Known technique of adapting proven mechanical design across similar load-bearing product categories, representing a predictable design transfer with minimal technical complexity
Source Patent Element
Strap attachment via first and second attachment openings in back puck
PTD Variation
Modifying back puck geometry to accommodate different equipment mounting requirements
Obviousness Reasoning
Routine engineering adaptation involving dimensional and geometric modifications to suit specific product requirements, representing a standard design optimization approach
Source Patent Element
Single-strap and double-strap configuration capabilities
PTD Variation
Extending convertible configuration to diverse carrying equipment with user-translatable strap engagement
Obviousness Reasoning
Predictable result of applying established mechanical conversion principles to alternative product domains, demonstrating obvious design extension
Source Patent Element
Strap width and side opening dimensional relationships
PTD Variation
Implementing adjustable strap lengths and materials across different equipment types
Obviousness Reasoning
Routine design variation involving material selection and dimensional scaling, representing standard engineering practice for adapting proven mechanical concepts
Source Patent Element
Back puck with central body and attachment openings
PTD Variation
Customizing back puck design with industry-specific branding or ergonomic modifications
Obviousness Reasoning
Predictable design choice involving aesthetic and functional adaptation of a standard mechanical interface, representing an obvious design optimization
35 U.S.C. § 103 Summary: Based on US Patent 11857853's disclosed strap assembly, the present publication demonstrates that a Person Having Ordinary Skill In The Art would find the claimed variations of convertible strap systems across multiple equipment categories to be obvious and predictable design extensions, lacking non-obvious inventive characteristics and therefore constituting anticipatory prior art for potential future patent claims in this technical domain.

Original Patent Information

Patent NumberUS 11,857,853
TitleGolf bag convertible strap assembly
Assignee(s)Karsten Manufacturing Corporation