Hand Barrier Dispenser With Single-Sheet Hygienic Dispensing
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Solution Overview
Problem
Existing solutions for hand protection in public restrooms are either ineffective, complex, or costly, failing to provide a complete barrier against germ transmission from door handles, and often require maintenance or are not widely available.
Innovation Solution
A hand protection barrier dispenser that uses thin, impermeable plastic sheets sealed on three sides and open on one, dispensed from a roll with perforations, allowing easy access and ensuring a complete hand coverage, mounted near door handles or in other high-risk areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If paper towels are used as a barrier, then a protective barrier is provided, but the porous material does not provide high confidence of protection especially when wet
Solution Approach 1:
The patent changes the material parameter from porous paper towel to non-porous plastic sheet. This fundamental material parameter change eliminates the porosity issue that compromises protection effectiveness when wet, providing reliable germ barrier protection.
Solution Approach 2:
The invention uses a composite structure of multiple plastic sheets sealed together to form a pocket, combining the benefits of non-porous material with a three-dimensional form factor that enhances protection and comfort.
2Reliability
If mechanical dispensing devices are used to automatically dispense sanitary covering, then complete hand coverage is provided, but the device becomes mechanically complex and expensive
Solution Approach 1:
The dispenser is designed to be manually operated by the user themselves. The user opens the dispenser, takes a hand protection barrier, and the next barrier is automatically positioned. This self-service approach eliminates complex mechanical dispensing mechanisms while ensuring complete hand coverage.
Solution Approach 2:
The patent uses disposable hand protection barriers made of inexpensive plastic sheets. The barriers are designed for single-use, eliminating the need for complex mechanical systems that would require maintenance, while providing reliable complete hand coverage.
3Reliability
If adhesive is used to retain hygienic pocket on hand, then the barrier is securely positioned, but the adhesive may cause discomfort or skin irritation
Solution Approach 1:
The patent extracts the adhesive component from the hand protection barrier design. By removing the adhesive element entirely, the invention eliminates skin irritation risks while maintaining secure barrier positioning through alternative means such as the pocket structure and user grip.
4Ease of operation
If multiple hand protection barriers are dispensed at once, then user convenience is improved, but waste increases and cost increases
Solution Approach 1:
The hand protection barriers are segmented into individual units within the dispenser. Each user can access and take one barrier at a time, while multiple barriers are stored in the dispenser for future use. This segmentation provides user convenience while preventing waste by allowing barriers to be taken only when needed.
Data Source
AI summary
A hand protection barrier dispenser for dispensing disposable sanitary barriers for temporarily covering the hand and providing complete hand protection is disclosed which dispenses the hand protection barriers in a manner so that they may easily be donned by a user thereof. The hand protection barrier operates to open each of the hand protection barriers as it is brought into position to be dispensed. The hand protection barrier dispenser allows only a single hand protection barrier to be dispensed at a time.