Enhanced Dispenser Actuator Assembly for Improved Safety and Efficiency

Publication ID: 24-11857747_0001_PTD

Published: November 07, 2025

Category:Direct Improvements & Enhancements

Legal Citation

pr1or.art Inc., “Enhanced Dispenser Actuator Assembly for Improved Safety and Efficiency,” Published Technical Disclosure No. 24-11857747_0001_PTD, Published November 07, 2025, available at https://archive.pr1or.art/24-11857747_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. 11,857,747.

Summary of the Inventive Concept

An innovative dispenser actuator assembly with improved locking mechanisms, reinforced structures, and integrated safety features, enhancing the safety and efficiency of dispensing flowable materials from crushable glass ampoule assemblies.

Background and Problem Solved

The original dispenser actuator assembly patent (Dispenser actuator assembly) has limitations in securely mounting on crushable glass ampoule assemblies, withstanding increased pressure, and preventing accidental actuation. The new inventive concept addresses these limitations by introducing an improved locking mechanism, reinforced structure, and integrated safety mechanism, ensuring controlled dispensing and reduced risk of injury or damage.

Detailed Description of the Inventive Concept

The enhanced dispenser actuator assembly comprises a base member with an improved locking mechanism featuring interlocking teeth that engage with corresponding teeth on the glass ampoule assembly, ensuring a secure mount. The base member also features a reinforced structure consisting of concentric rings that distribute pressure evenly, allowing it to withstand increased pressure when crushing the glass ampoule. Additionally, an integrated safety mechanism prevents accidental actuation of the assembly, ensuring controlled dispensing of the flowable material. The actuator assembly can be customized with an adjustable actuator arm to accommodate dispensers of varying sizes.

Novelty and Inventive Step

The new claims introduce novel features such as the improved locking mechanism, reinforced structure, and integrated safety mechanism, which are not present in the original patent. These features provide a non-obvious solution to the limitations of the original patent, enhancing the safety and efficiency of the dispenser actuator assembly.

Alternative Embodiments and Variations

Alternative embodiments of the inventive concept could include variations in the locking mechanism, such as magnetic or friction-based locking systems. The reinforced structure could be modified to use alternative materials or geometries. The integrated safety mechanism could be replaced with other safety features, such as sensors or alarms.

Potential Commercial Applications and Market

The enhanced dispenser actuator assembly has significant commercial potential in industries such as pharmaceuticals, cosmetics, and food processing, where the safe and efficient dispensing of flowable materials is critical. The inventive concept's improved safety and efficiency features make it an attractive solution for companies seeking to upgrade their dispensing systems.

CPC Classifications

Section	Class	Group
A	A61	A61M35/003
A	A61	A61J1/065
A	A61	A61M2209/04

Section 103 Obviousness Analysis (PHOSITA)

▼

Field of Art

Medical device design, specifically dispenser actuator assemblies for controlled release of flowable materials from glass ampoules, involving mechanical engineering, medical packaging, and precision fluid delivery systems

Person of Ordinary Skill (PHOSITA) Profile

A mechanical engineer with expertise in medical device design, familiar with fluid delivery mechanisms, mechanical interlocking systems, and safety considerations for medical dispensers, typically holding a Bachelor's or Master's degree with 3-5 years of industry experience

Obviousness Rationale

A PHOSITA would recognize that the PTD's variations represent predictable engineering improvements to the source patent's basic dispenser actuator design. The disclosed enhancements like interlocking teeth, reinforced structures, and safety mechanisms are logical extensions of existing mechanical design principles in medical device packaging. These modifications address known limitations in glass ampoule dispensing systems through straightforward mechanical engineering solutions.

Obvious Combinations & Variations

Source Patent Element

Annular base member with inner surface ribs for engaging an outer container

PTD Variation

Interlocking teeth mechanism that provides more secure mounting and engagement

Obviousness Reasoning

A PHOSITA would find it obvious to replace simple ribs with interlocking teeth as a known technique for improving mechanical connection, representing a predictable variation in mechanical fastening design

Source Patent Element

Basic actuator assembly for crushing a glass ampoule

PTD Variation

Integrated safety mechanism preventing accidental actuation

Obviousness Reasoning

Safety improvements are a standard design consideration in medical devices, and a PHOSITA would recognize multiple known methods to prevent unintended activation as an obvious design enhancement

Source Patent Element

Single fixed actuator configuration

PTD Variation

Adjustable actuator arm to accommodate dispensers of varying sizes

Obviousness Reasoning

Designing adjustable mechanical components is a predictable solution for creating adaptable medical devices, representing a routine engineering design choice with expected results

Source Patent Element

Basic base member structure

PTD Variation

Reinforced structure with concentric rings for pressure distribution

Obviousness Reasoning

Structural reinforcement through geometric modifications is a standard engineering approach to improving mechanical performance, representing a known technique for enhancing device reliability

Source Patent Element

Basic glass ampoule crushing mechanism

PTD Variation

Method incorporating controlled dispensing steps with integrated safety protocols

Obviousness Reasoning

Systematic improvement of medical device operational procedures through additional control steps is an obvious extension of existing design principles, representing a predictable refinement of known techniques

35 U.S.C. § 103 Summary: Based on the teachings of US Patent 11857747, the variations disclosed in this Published Technical Disclosure would be considered obvious to a Person Having Ordinary Skill In The Art, as they represent predictable mechanical engineering solutions that extend the fundamental design of the source patent through routine modifications that would be apparent to a skilled practitioner in medical device design.

Original Patent Information

Patent Number	US 11,857,747
Title	Dispenser actuator assembly
Assignee(s)	James Alexander Corporation