Published Technical Disclosure Archive

Enhanced Direct Improvements & Enhancements Technical Implementation

Publication ID: 24-11858171_0006_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_0006_PTD, Published October 29, 2025, available at https://archive.pr1or.art/24-11858171_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. 11,858,171.

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

Mechanical engineering focusing on vehicle-mounted fluid power systems, specifically concrete mixer drum drive mechanisms with variable displacement hydraulic systems

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in hydraulic power transmission systems, vehicle-mounted industrial equipment design, and fluid power control mechanisms, typically holding a bachelor's or master's degree in mechanical engineering with 3-5 years of specialized experience in mobile hydraulic systems

Obviousness Rationale

A person having ordinary skill in the art would recognize that the PTD's disclosed improvements represent predictable variations of the source patent's core hydraulic drive system design. The technical variations demonstrate standard engineering problem-solving approaches that would be apparent to a skilled practitioner seeking to optimize drum drive performance. The disclosed enhancements leverage known hydraulic system design principles and represent incremental modifications within the established technological framework of the original patent.

Obvious Combinations & Variations

Source Patent Element
Variable displacement pump mechanically coupled to vehicle engine
PTD Variation
Enhanced pump displacement control mechanism with expanded speed range and precision adjustment
Obviousness Reasoning
Modifying pump displacement parameters represents a routine design optimization that would be obvious to a PHOSITA seeking improved system performance using known hydraulic engineering techniques
Source Patent Element
Control system for managing engine and drum speed interactions
PTD Variation
Advanced control logic enabling more granular speed management and independent parameter adjustment
Obviousness Reasoning
Implementing refined control strategies using microprocessor and sensor technologies constitutes a predictable evolution of existing control system designs
Source Patent Element
Hydraulic motor fluidly coupled to variable displacement pump
PTD Variation
Improved motor efficiency and enhanced torque transmission characteristics
Obviousness Reasoning
Incremental improvements to hydraulic motor design represent standard engineering practice for optimizing power transmission in fluid power systems
Source Patent Element
Drive system with overall drive ratio between 30:1 and 40:1
PTD Variation
Extended drive ratio range with more precise speed modulation capabilities
Obviousness Reasoning
Expanding operational parameters through known engineering techniques constitutes an obvious variation that a skilled practitioner would recognize as a straightforward design modification
Source Patent Element
Concrete mixer vehicle drum drive configuration
PTD Variation
Enhanced system architecture providing improved reliability and performance monitoring
Obviousness Reasoning
Implementing diagnostic and performance tracking features represents a predictable technological improvement using standard sensor and control system integration methods
35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. ยง 103, the technical variations disclosed herein would have been obvious to a person having ordinary skill in the art at the time of invention, with a reasonable expectation of success, based on the teachings of US Patent 11858171. The published technical disclosure demonstrates that the claimed subject matter represents a predictable variation of prior art hydraulic system design principles, rendering potential derivative claims unpatentable through established obviousness analysis.

Original Patent Information

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