Advanced Cutting Comb: Precision Hair Trimming Tech

Publication ID: 24-11857054_0009_PTD

Published: November 07, 2025

Category:Specialized Variations & Niche Solutions

Legal Citation

pr1or.art Inc., “Advanced Cutting Comb: Precision Hair Trimming Tech,” Published Technical Disclosure No. 24-11857054_0009_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857054_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. 11,857,054.

Background and Problem Solved

Existing hair cutting machines and combs lack the ability to effectively trim hair in unique operational environments. The original cutting comb patent addressed the problem of trimming hair of shorter length than specified by the user, but did not account for the added complexities of niche environments. This invention addresses the need for specialized cutting combs that can operate effectively in these environments, ensuring safe and efficient hair trimming.

Novelty and Inventive Step

The new claims introduce novel adaptations to the original cutting comb design, specifically addressing the challenges of niche environments. These adaptations, such as low-oxygen operability, integrated air filters, ruggedized designs, tamper-evident mechanisms, and heated handles, provide a non-obvious solution to the problem of hair trimming in these environments.

Alternative Embodiments and Variations

Alternative embodiments could include cutting combs adapted for use in other niche environments, such as high-humidity or high-vibration settings. Variations could also include different materials, shapes, or sizes of the cutting combs to accommodate specific user needs or preferences.

Potential Commercial Applications and Market

The invention has significant commercial potential in various industries, including professional hair care, disaster relief, and high-security environments. The market for specialized cutting combs is substantial, with a growing demand for niche solutions that address specific operational challenges.

Section 103 Obviousness Analysis (PHOSITA)

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Field of Art

Personal grooming devices, specifically hair cutting and trimming tools, with expertise in mechanical design, ergonomics, and environmental adaptability of cutting implements

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer or product designer with 3-5 years experience in personal grooming tools, familiar with materials science, thermal management, and user interface design for specialized cutting instruments

Obviousness Rationale

A PHOSITA would recognize that the source patent's cutting comb design provides a fundamental platform for environmental and functional adaptations. The disclosed variations represent predictable extensions of the original hair cutting technology, applying known engineering principles to address specific use case constraints. The modifications leverage standard design techniques like thermal management, filtration, and ruggedization that are well-established in mechanical engineering.

Obvious Combinations & Variations

Source Patent Element

Heatable teeth/comb elements from source patent claim 5

PTD Variation

Heated handle for extreme cold weather operation

Obviousness Reasoning

Extending thermal management from teeth to handle represents a predictable design variation solving a known environmental challenge, using standard heat transfer techniques

Source Patent Element

Comb with planar hair-dividing elements from original claims

PTD Variation

Integrated air filtration system for high-pollution environments

Obviousness Reasoning

Adding filtration to a personal grooming device is a known technique for protecting user health, representing a straightforward modification using standard air filtration technologies

Source Patent Element

Perpendicular tooth orientation from source patent

PTD Variation

Ruggedized design for disaster relief scenarios

Obviousness Reasoning

Modifying material selection and structural reinforcement to enhance durability is a standard engineering approach for adapting devices to harsh environments

Source Patent Element

Comb with multiple tooth configurations

PTD Variation

Biometric authentication and tamper-evident mechanisms

Obviousness Reasoning

Incorporating electronic security features represents a predictable technological enhancement using standard user authentication techniques

Source Patent Element

Hair-dividing comb structure

PTD Variation

Specialized handle for high-altitude/gloved operation

Obviousness Reasoning

Ergonomic adaptations for specific environmental conditions are routine design modifications that a skilled practitioner would find obvious

35 U.S.C. § 103 Summary: Based on US Patent 11857054's fundamental cutting comb design, the present disclosure demonstrates that the claimed variations represent obvious extensions of prior art through predictable combinations of known technical elements. A person having ordinary skill in the art would readily conceive these modifications as straightforward adaptations addressing specific environmental and functional constraints, thereby rendering potential derivative claims non-patentable under standard obviousness analysis.

Original Patent Information

Patent Number	US 11,857,054
Title	Cutting comb
Assignee(s)	ATHROA HAIR CARE