Advanced Cutting Deck Lifting Device for Specialized Mowers

Publication ID: 24-11856886_0009_PTD

Published: October 26, 2025

Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Advanced Cutting Deck Lifting Device for Specialized Mowers,” Published Technical Disclosure No. 24-11856886_0009_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856886_0009_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. 11,856,886.

Background and Problem Solved

The original patent disclosed a cutting deck lifting device for adjusting the height of a cutting deck in a mower. However, the existing design may not be suitable for specialized applications, such as high-security needs, disaster relief, or extreme weather conditions. The present invention addresses these limitations by introducing novel adaptations for these specific markets.

Novelty and Inventive Step

The new claims introduce novel adaptations for specific, narrow markets or unique operational environments, which are not obvious from the original patent. The inventive step lies in the combination of existing cutting deck lifting device technology with specialized components and features tailored to each niche application.

Alternative Embodiments and Variations

Alternative embodiments may include variations in the biometric authentication system, shock-absorbing component, water-resistant coating, heating element, GPS-enabled positioning system, or winch system. Additional embodiments could incorporate other specialized features, such as advanced sensors, communication systems, or power sources, to further enhance the functionality and adaptability of the cutting deck lifting devices.

Potential Commercial Applications and Market

The invention has significant commercial potential in various industries, including high-security facilities, disaster relief organizations, extreme weather response teams, precision agriculture companies, and search and rescue operations. The specialized cutting deck lifting devices can provide enhanced functionality, security, and adaptability, leading to increased efficiency, safety, and productivity in these niche applications.

CPC Classifications

Section	Class	Group
A	A01	A01D34/74
A	A01	A01D2101/00

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Agricultural machinery, specifically lawn mowers and cutting deck lifting mechanisms, involving mechanical design and height adjustment systems for ground maintenance equipment

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in agricultural equipment design, familiar with adjustable cutting deck mechanisms, mechanical linkages, and modular equipment adaptation techniques

Obviousness Rationale

A person having ordinary skill would recognize that the source patent's fundamental cutting deck lifting mechanism provides a versatile platform for specialized adaptations. The core mechanical principles of height adjustment, pedal assembly, and positioning systems remain consistent across the disclosed variations. A PHOSITA would understand that adding domain-specific features like biometric authentication, shock absorption, or GPS tracking represents predictable engineering modifications within the established technical framework.

Obvious Combinations & Variations

Source Patent Element

Pedal assembly with locking and unlocking states for adjusting cutting deck height

PTD Variation

Biometric authentication system integrated with pedal locking mechanism

Obviousness Reasoning

Adding access control to mechanical systems is a known technique in security-sensitive equipment, representing a predictable design choice with a finite set of implementation strategies

Source Patent Element

Sliding plate and positioning member for deck height adjustment

PTD Variation

Shock-absorbing component integrated into adjusting assembly

Obviousness Reasoning

Enhancing mechanical systems with vibration or impact mitigation is a standard engineering approach for improving equipment performance in challenging environments

Source Patent Element

Mechanical linkage between pedal assembly and cutting deck

PTD Variation

GPS-enabled positioning system for terrain-adaptive height adjustment

Obviousness Reasoning

Incorporating sensor-based automation into mechanical systems is a predictable evolution of existing control mechanisms, utilizing well-established electronic integration techniques

35 U.S.C. § 103 Summary: Based on US Patent 11856886's disclosure of a cutting deck lifting device, the present publication demonstrates that a person having ordinary skill in agricultural equipment design would find the claimed variations obvious through routine engineering modifications. The source patent's fundamental mechanical principles provide a comprehensive technical foundation from which the disclosed specialized adaptations would be considered predictable extensions of known technology.

Original Patent Information

Patent Number	US 11,856,886
Title	Cutting deck lifting device and mower having cutting deck lifting device
Assignee(s)	Globe (Jiangsu) Co., Ltd.