Enhanced Coffee Bean Grinder with Integrated Coffee Powder Collection and Adjustable Grinding Gap

Publication ID: 24-11857113_0006_PTD
Published: November 07, 2025
Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Coffee Bean Grinder with Integrated Coffee Powder Collection and Adjustable Grinding Gap,” Published Technical Disclosure No. 24-11857113_0006_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857113_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. 11,857,113.

Summary of the Inventive Concept

This inventive concept presents a novel coffee bean grinder that addresses the limitations of conventional coffee bean grinders by incorporating an integrated coffee powder collection chamber, adjustable grinding gap, self-lubricating mechanism, energy-efficient design, and real-time coffee powder fineness monitoring system.

Background and Problem Solved

Conventional coffee bean grinders suffer from residual coffee powder remaining in the device after grinding, leading to inefficiencies and inconsistent flavor. The original patent addressed this issue, but the new inventive concept takes it a step further by introducing innovative features that enhance the overall grinding experience.

Detailed Description of the Inventive Concept

The enhanced coffee bean grinder features a housing assembly with an integrated coffee powder collection chamber, allowing for easy cleaning and improved coffee powder filtering efficiency. The shaft component includes an adjustable grinding gap, adjustable by rotating a threaded collar, ensuring optimal grinding results. The bearing component incorporates a self-lubricating mechanism, comprising a lubricant reservoir and delivery channel, and a temperature sensor for monitoring bearing temperature. The motor component boasts an energy-efficient design, featuring a high-torque, low-speed motor and gear reduction system, as well as an overload protection circuit for preventing motor damage. Finally, the grinding mechanism includes a variable speed control, comprising a speed adjustment knob and speed sensor, and a real-time coffee powder fineness monitoring system.

Novelty and Inventive Step

The new inventive concept's integrated coffee powder collection chamber, adjustable grinding gap, self-lubricating mechanism, energy-efficient design, and real-time coffee powder fineness monitoring system are novel and non-obvious improvements over the original patent, providing a more efficient, safer, and more efficient coffee bean grinding experience.

Alternative Embodiments and Variations

Alternative embodiments may include varying the design of the coffee powder collection chamber, using different materials for the grinding member, or incorporating additional sensors for monitoring coffee bean freshness. Variations may also include adapting the inventive concept for commercial or industrial use, or integrating it with smart home systems.

Potential Commercial Applications and Market

The enhanced coffee bean grinder has significant commercial potential in the coffee industry, particularly in the specialty coffee segment, where consumers demand high-quality, consistent flavor. The inventive concept's innovative features will appeal to coffee enthusiasts, cafes, and restaurants, providing a competitive edge in the market.

CPC Classifications

SectionClassGroup
A A47 A47J42/38
A A47 A47J42/04
A A47 A47J42/10
A A47 A47J42/18

Field of Art

Mechanical engineering, specifically coffee bean processing equipment, involving precision grinding mechanisms, bearing systems, and electromechanical components for food preparation devices

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in small appliance design, familiar with precision grinding technologies, bearing mechanisms, motor control systems, and food processing equipment design principles

Obviousness Rationale

A person having ordinary skill would recognize that the PTD's disclosed variations represent predictable engineering improvements to the source patent's coffee bean grinder design. The modifications represent standard problem-solving approaches in mechanical device optimization, addressing known limitations through incremental technical enhancements. Each proposed variation follows established engineering problem-solving methodologies that would be apparent to a skilled practitioner seeking to improve coffee grinding technology.

Obvious Combinations & Variations

Source Patent Element
Housing assembly with bearing component and outer grinding member
PTD Variation
Integrated coffee powder collection chamber with removable filter screen
Obviousness Reasoning
A PHOSITA would recognize that adding a dedicated collection chamber with improved filtering represents a predictable solution to powder retention problems inherent in grinding devices, using known filtration and containment techniques
Source Patent Element
Shaft component with bearing configuration
PTD Variation
Self-lubricating mechanism with lubricant reservoir and temperature sensor
Obviousness Reasoning
Implementing a self-monitoring lubrication system is a standard engineering approach to reducing mechanical wear, using well-established tribological principles and sensor integration techniques
Source Patent Element
Adjusting component with rotating ring
PTD Variation
Adjustable grinding gap using threaded collar with wear-resistant grinding member coating
Obviousness Reasoning
Providing adjustable grinding parameters through mechanical interfaces is a known technique, and adding wear-resistant coatings represents a predictable materials engineering solution for extending component lifespan
Source Patent Element
Basic motor configuration in grinding mechanism
PTD Variation
Energy-efficient motor design with high-torque, low-speed configuration and overload protection circuit
Obviousness Reasoning
Implementing efficiency improvements and protective circuits are standard design practices in electromechanical systems, representing incremental technological advancements obvious to a skilled engineer
Source Patent Element
Basic grinding mechanism
PTD Variation
Variable speed control with real-time coffee powder fineness monitoring system
Obviousness Reasoning
Adding sensor-based monitoring and precision control represents a predictable technological enhancement using standard feedback control principles common in modern mechanical systems
35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857113 and the disclosed technical variations, a person having ordinary skill in the art would find the proposed coffee bean grinder enhancements obvious and lacking inventive step. The incremental modifications represent standard engineering problem-solving approaches that would be apparent to a skilled practitioner seeking to optimize coffee grinding technology through predictable technical improvements.

Original Patent Information

Patent NumberUS 11,857,113
TitleCoffee bean grinder
Assignee(s)CHUANG-KANG MACHINERY TECHNOLOGY CO., LTD