Enhanced Direct Improvements & Enhancements Technical Implementation

Publication ID: 24-11858273_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. 24-11858273_0001_PTD, Published October 29, 2025, available at https://archive.pr1or.art/24-11858273_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. 11,858,273.

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	B41	B41J2/17523
B	B41	B41F31/02

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Printing fluid container systems and printing technology, specifically focusing on fluid container design, attachment mechanisms, and rotational coupling interfaces for printing equipment

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer or technical specialist with expertise in fluid container design, manufacturing tolerances, rotational coupling mechanisms, and printing system component integration, typically holding a bachelor's or master's degree in mechanical engineering

Obviousness Rationale

A PHOSITA would recognize that the PTD's disclosed improvements represent predictable variations and extensions of the source patent's fundamental printing fluid container design, utilizing standard engineering problem-solving techniques to enhance functional capabilities while maintaining core structural compatibility.

Obvious Combinations & Variations

Source Patent Element

Container body with collar having plurality of teeth for rotational coupling

PTD Variation

Enhanced tooth geometry and cam surface configurations to improve attachment precision and reduce rotational force required for cap removal

Obviousness Reasoning

Modifying tooth profiles represents a known technique for optimizing mechanical interfaces, with predictable results in improving coupling performance

Source Patent Element

Cap removal mechanism requiring rotational movement

PTD Variation

Alternative tooth count and cam surface angle configurations to enable more efficient or ergonomic cap removal

Obviousness Reasoning

Adjusting tooth geometry is a standard design choice with finite predictable outcomes in mechanical coupling systems

Source Patent Element

Fluid container with removable cap interface

PTD Variation

Implementing material variations or surface treatments to enhance wear resistance and reduce friction in the rotational coupling

Obviousness Reasoning

Material selection and surface modification are routine engineering approaches for improving mechanical component performance

Source Patent Element

Basic printing fluid container structural configuration

PTD Variation

Introducing modular design elements that allow for easier manufacturing, assembly, or component replacement

Obviousness Reasoning

Modularization and design simplification are standard problem-solving techniques in mechanical system development

Source Patent Element

Container opening and collar interface

PTD Variation

Implementing precision alignment features or additional sealing mechanisms to improve fluid containment and prevent leakage

Obviousness Reasoning

Incremental improvements to sealing and alignment represent predictable engineering solutions in fluid container design

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11858273, a Person Having Ordinary Skill In The Art would find the technical variations disclosed herein to be obvious extensions of the prior art, representing routine engineering modifications that would be apparent to a skilled practitioner without requiring inventive insight or non-obvious problem-solving.

Original Patent Information

Patent Number	US 11,858,273
Title	Printing fluid container with removable cap
Assignee(s)	Hewlett-Packard Development Company, L.P.