Published Technical Disclosure Archive

Advanced Hay Bale Unroller: Precision Agricultural Tech

Publication ID: 24-11856892_0001_PTD
Published: October 26, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Advanced Hay Bale Unroller: Precision Agricultural Tech,” Published Technical Disclosure No. 24-11856892_0001_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856892_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. 11,856,892.

Background and Problem Solved

The original Self-aligning Hay Bale Unroller invention, while innovative, had limitations in terms of simultaneous rotation and alignment of the hay bale spear and fins. This new invention addresses these limitations by introducing a rotatable shaft, hydraulic cylinder, and sensor-equipped hay bale spear and fins, enabling more efficient and controlled hay bale unrolling.

Novelty and Inventive Step

The new claims introduce the rotatable shaft, hydraulic cylinder, and sensor-equipped hay bale spear and fins, which provide a significant improvement over the original invention. These features enable more efficient, controlled, and automated hay bale unrolling, making the Enhanced Self-Aligning Hay Bale Unroller System a non-obvious and novel advancement.

Alternative Embodiments and Variations

Alternative embodiments of the Enhanced Self-Aligning Hay Bale Unroller System could include different types of sensors, such as ultrasonic or camera-based sensors, to detect hay bale size and shape. Additionally, the system could be adapted for use with different types of farm vehicles or hay bale sizes.

Potential Commercial Applications and Market

The Enhanced Self-Aligning Hay Bale Unroller System has significant commercial potential in the agricultural industry, particularly for farmers and livestock owners who require efficient and controlled hay bale unrolling. The system's automated features and improved efficiency could reduce labor costs and increase productivity, making it an attractive solution for the agricultural market.

CPC Classifications

SectionClassGroup
A A01 A01D87/127
B B25 B25J9/1065
B B25 B25J15/0266
A A01 A01D2087/128

Field of Art

Agricultural machinery and vehicle attachments, specifically hay bale handling systems, involving mechanical design, hydraulic actuation, and agricultural equipment interfaces

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in agricultural equipment design, familiar with tractor attachments, hydraulic systems, and mechanical linkages for farm implements, possessing knowledge of standard design practices in agricultural machinery

Obviousness Rationale

A person having ordinary skill would recognize that the PTD's variations represent predictable engineering improvements to the source patent's hay bale unroller design. The disclosed sensor integration, hydraulic control, and rotational mechanisms are logical extensions of existing mechanical principles in agricultural equipment. These modifications represent standard design iterations that would be apparent to a skilled practitioner seeking to enhance the original invention's functionality.

Obvious Combinations & Variations

Source Patent Element
Three-point hitch attachment with first and second arms for handling hay bales
PTD Variation
Adding a rotatable shaft connecting the first and second arms to enable simultaneous alignment
Obviousness Reasoning
A PHOSITA would recognize that adding rotational capability to existing mechanical arms represents a predictable design optimization for improved alignment and control
Source Patent Element
Movement imparting device attached to farm tractor attachment arms
PTD Variation
Implementing a hydraulic cylinder for controlled extension and retraction of hay bale spear and fins
Obviousness Reasoning
Hydraulic actuation is a known technique in agricultural machinery for precise mechanical control, representing an obvious mechanical substitution with expected results
Source Patent Element
Hay bale spear with engagement fins
PTD Variation
Adding sensor technology to detect hay bale size and shape for automated alignment
Obviousness Reasoning
Integrating sensors for automated equipment alignment is a standard engineering approach in modern agricultural machinery, representing a predictable technological enhancement
Source Patent Element
Basic mechanical three-point hitch hay bale handling attachment
PTD Variation
Implementing a control unit for automatic speed and direction adjustment based on hay bale characteristics
Obviousness Reasoning
Automated control systems are a known solution for improving agricultural equipment performance, representing an obvious technological progression
Source Patent Element
Mechanical hay bale unrolling attachment
PTD Variation
Expanding attachment compatibility to multiple vehicle types and hay bale sizes
Obviousness Reasoning
Designing flexible agricultural attachments with broader compatibility is a standard design approach representing routine engineering adaptation
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11856892, a person having ordinary skill in agricultural machinery design would find the variations disclosed herein to be obvious extensions of the prior art. The incremental technological improvements involving rotational mechanisms, sensor integration, and automated control represent predictable engineering solutions that would be apparent to a skilled practitioner seeking to enhance hay bale handling equipment functionality.

Original Patent Information

Patent NumberUS 11,856,892
TitleSelf-aligning hay bale unroller