Published Technical Disclosure Archive

Enhanced Direct Improvements & Enhancements Technical Implementation

Publication ID: 24-11858171_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. 24-11858171_0001_PTD, Published October 29, 2025, available at https://archive.pr1or.art/24-11858171_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. 11,858,171.

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

SectionClassGroup
B B28 B28C5/4213
B B28 B28C5/4217
F F15 F15B11/17
F F15 F15B7/006
F F15 F15B2211/20515
F F15 F15B2211/20523
F F15 F15B2211/20538
F F15 F15B2211/20576
F F15 F15B2211/327

Field of Art

Fluid power systems, vehicle drive mechanisms, and concrete mixer vehicle engineering, focusing on hydraulic drive systems with variable displacement components

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in hydraulic power transmission, vehicle drivetrain design, and specialized mobile equipment systems, possessing knowledge of fluid power principles, motor-pump interactions, and vehicle-specific engineering constraints

Obviousness Rationale

A PHOSITA would recognize the PTD's disclosed improvements as straightforward extensions of the source patent's fundamental hydraulic drive system architecture. The variations represent predictable engineering adaptations that leverage known techniques for enhancing variable displacement motor performance. The technical solutions proposed are consistent with standard design optimization approaches in fluid power system engineering.

Obvious Combinations & Variations

Source Patent Element
Pump configured to mechanically couple to vehicle engine with variable pump displacement
PTD Variation
Enhanced pump displacement range and refined mechanical coupling mechanisms
Obviousness Reasoning
Adjusting pump displacement parameters is a routine design optimization for hydraulic systems, representing a predictable variation within known engineering practices
Source Patent Element
Control system manipulating engine speed during neutral transmission state
PTD Variation
Advanced control algorithms for more precise engine-drum speed synchronization
Obviousness Reasoning
Refining control system logic represents an obvious improvement using standard software engineering techniques applicable to hydraulic drive systems
Source Patent Element
Drive ratio between 30:1 and 40:1 utilizing pump and motor speed ranges
PTD Variation
Extended drive ratio configurations with modified speed range interactions
Obviousness Reasoning
Exploring alternative drive ratio configurations is a standard design approach for optimizing power transmission efficiency in mechanical systems
Source Patent Element
Fluid coupling between pump and motor in drum drive system
PTD Variation
Enhanced fluid coupling mechanisms with improved pressure management
Obviousness Reasoning
Implementing refined fluid coupling techniques represents a predictable engineering solution within established hydraulic system design principles
Source Patent Element
Concrete mixer vehicle drum drive configuration
PTD Variation
Alternative embodiments targeting improved power transmission efficiency
Obviousness Reasoning
Developing alternative implementation approaches is a standard method of exploring design optimization in specialized vehicle engineering
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11858171, a Person Having Ordinary Skill In The Art would find the technical variations disclosed herein to be obvious extensions of the prior art, representing predictable engineering solutions within the established technological domain of hydraulic drive systems for specialized vehicle applications. The proposed improvements constitute routine design modifications that would be apparent to a skilled practitioner without requiring inventive insight beyond ordinary professional capabilities.

Original Patent Information

Patent NumberUS 11,858,171
TitleMixer drum drive with variable displacement motor
Assignee(s)Oshkosh Corporation