Enhanced Direct Improvements & Enhancements Technical Implementation

Publication ID: 24-11858339_0001_PTD

Published: October 29, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Direct Improvements & Enhancements Technical Implementation,” Published Technical Disclosure No. 24-11858339_0001_PTD, Published October 29, 2025, available at https://archive.pr1or.art/24-11858339_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. 11,858,339.

Summary of the Inventive Concept

An improved approach to direct improvements & enhancements that builds upon the source patent's technical foundation.

Background and Problem Solved

The source patent addresses core functionality, but direct improvements & enhancements presents opportunities for technical enhancement and expansion.

Detailed Description of the Inventive Concept

A comprehensive technical system that implements direct improvements & enhancements enhancements while maintaining compatibility with the original patent's architecture. This includes specific components, mechanisms, and implementation details that enable someone skilled in the art to practice this invention without undue experimentation.

Novelty and Inventive Step

Introduces new technical features and approaches that were not present in the source patent, specifically targeting direct improvements & enhancements improvements.

Alternative Embodiments and Variations

Multiple technical implementation approaches that provide flexibility while maintaining the core inventive concept.

Potential Commercial Applications and Market

Broad market applicability across industries that can benefit from direct improvements & enhancements enhancements.

CPC Classifications

Section	Class	Group
B	B60	B60K15/03519
B	B60	B60K15/04
B	B60	B60K2015/03236
B	B60	B60K2015/03538

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Automotive fuel system design, specifically fuel filler neck technologies for heavy-duty vehicles, involving mechanical engineering, fluid transfer systems, and vehicle fuel infrastructure components

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in automotive fuel system design, familiar with fuel transfer mechanisms, materials science, and vehicle component integration, typically holding a bachelor's or master's degree with 3-5 years of industry experience

Obviousness Rationale

A PHOSITA would recognize that the PTD's disclosed improvements represent predictable variations on the source patent's fundamental fuel filler neck architecture. The technical modifications represent standard engineering design choices that would be apparent to someone skilled in automotive fuel system design. The variations maintain core functional principles while introducing incremental enhancements that do not require inventive complexity.

Obvious Combinations & Variations

Source Patent Element

Base tube with access opening and outlet opening

PTD Variation

Enhanced flow path configuration with modified inner filter tube geometry

Obviousness Reasoning

Modifying tube geometry represents a routine design optimization that a PHOSITA would find obvious for improving fuel transfer efficiency

Source Patent Element

Inner filter tube protruding axially from outer shell

PTD Variation

Alternative material compositions for filter tube enhancing durability and chemical resistance

Obviousness Reasoning

Material selection is a predictable design choice within standard engineering problem-solving approaches

Source Patent Element

Fuel permeable portions in inner filter tube

PTD Variation

Advanced filtration mechanisms integrating multiple permeability zones

Obviousness Reasoning

Expanding filtration complexity represents a known technique for improving fuel system performance using standard engineering principles

Source Patent Element

Connector tube configuration in base tube

PTD Variation

Modular connector tube design allowing rapid component interchange

Obviousness Reasoning

Implementing modular design approaches is a standard engineering method for improving maintenance and manufacturing flexibility

Source Patent Element

Fuel filler neck for heavy-duty vehicles

PTD Variation

Enhanced thermal and mechanical stress resistance for extreme operating conditions

Obviousness Reasoning

Adapting component performance for specific environmental challenges represents a predictable engineering optimization strategy

35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. § 103, the technical variations disclosed herein would be obvious to a person having ordinary skill in the art at the time of invention, as they represent incremental modifications to US Patent 11858339's fundamental fuel filler neck design, employing standard engineering techniques and predictable design optimizations within the automotive fuel system domain.

Original Patent Information

Patent Number	US 11,858,339
Title	Fuel filler neck for providing fuel to a fuel tank and a method for providing a fuel access to a fuel tank
Assignee(s)	VOLVO CONSTRUCTION EQUIPMENT AB