Intelligent Lawn Mower Speed Control System

Publication ID: 24-11856888_0006_PTD

Published: October 26, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Intelligent Lawn Mower Speed Control System,” Published Technical Disclosure No. 24-11856888_0006_PTD, Published October 26, 2025, available at https://archive.pr1or.art/24-11856888_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. 11,856,888.

Background and Problem Solved

The original patent (Speed Control Assembly) has limitations in adapting to varying user walking paces and environmental conditions, resulting in inefficient and potentially hazardous operation. The present invention addresses these limitations by introducing an intelligent speed control system that dynamically adjusts the lawn mower's speed based on real-time user and environmental feedback.

Novelty and Inventive Step

The new claims introduce the concept of dynamic grip adjustment, real-time user and environmental feedback, and terrain-sensing capabilities, which are not present in the original patent. These features provide a significant improvement in terms of safety, efficiency, and user experience.

Alternative Embodiments and Variations

Alternative embodiments of the invention could include using different types of sensors, such as GPS or accelerometers, to detect the user's walking pace and environmental conditions. Additionally, the invention could be adapted for use in other types of outdoor power equipment, such as trimmers or edgers.

Potential Commercial Applications and Market

The intelligent speed control assembly has significant commercial potential in the lawn and garden industry, particularly among professional landscapers and homeowners with large lawns. The invention's ability to optimize performance and safety could lead to increased market share and customer loyalty.

CPC Classifications

Section	Class	Group
A	A01	A01D34/824
A	A01	A01D34/6806
A	A01	A01D34/78
A	A01	A01D69/02
A	A01	A01D2034/6843
A	A01	A01D2101/00

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Lawn mower control systems and speed regulation technologies, involving mechanical engineering, sensor integration, and power equipment design with a focus on user-controlled propulsion mechanisms

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in power equipment design, familiar with sensor technologies, control systems, and user interface design for outdoor power equipment, typically holding a bachelor's degree in mechanical engineering with 3-5 years of industry experience

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable extensions of the source patent's speed control system by incorporating additional sensor inputs and adaptive control strategies. The fundamental architecture of grip-based speed sensing remains consistent, with the PTD introducing incremental improvements in sensing and dynamic speed adjustment. These modifications represent standard design evolution in power equipment control systems, utilizing known sensor and control techniques to enhance user experience and operational efficiency.

Obvious Combinations & Variations

Source Patent Element

Sensor operable to generate an output signal based on grip position

PTD Variation

Adding walking pace detection and terrain-sensing capabilities to the existing sensor system

Obviousness Reasoning

Integrating additional sensor inputs is a predictable design optimization, using known sensor technologies to enhance speed control precision

Source Patent Element

Controller configured to receive sensor output and control drive assembly

PTD Variation

Expanding controller functionality to dynamically adjust speed based on multiple input parameters

Obviousness Reasoning

Adaptive control strategies are a standard approach in mechatronic systems, representing an obvious improvement to existing control architectures

Source Patent Element

Grip moveable longitudinally relative to cross member

PTD Variation

Implementing dynamic grip adjustment based on detected user walking pace

Obviousness Reasoning

Ergonomic interface modifications represent a known design approach for improving user interaction and equipment usability

Source Patent Element

Speed control system for lawn mower

PTD Variation

Adding real-time environmental and user feedback mechanisms to speed control

Obviousness Reasoning

Incorporating contextual awareness into control systems is a predictable evolution in smart equipment design

Source Patent Element

Sensor detecting grip position

PTD Variation

Expanding sensor capabilities to include GPS, accelerometer, and terrain-sensing technologies

Obviousness Reasoning

Substituting equivalent sensing technologies represents a standard design approach with predictable implementation outcomes

35 U.S.C. § 103 Summary: Pursuant to 35 U.S.C. § 103, the variations disclosed in this publication would have been obvious to a person having ordinary skill in the art at the time of invention, as referenced against US Patent 11856888. The incremental technological modifications represent predictable extensions of existing speed control methodologies, utilizing known sensor integration techniques and control system architectures to enhance lawn mower operational capabilities.

Original Patent Information

Patent Number	US 11,856,888
Title	Speed control assembly
Assignee(s)	Techtronic Outdoor Products Technology Limited