Rupturable Blister Sheet Perforations Quiet Dispensing
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Solution Overview
Problem
Conventional blister packages using metal foil for consumable products face issues such as noise during dispensing, high manufacturing and application costs, and difficulty in puncturing due to the resilience of plastic films which stretch instead of puncturing when force is applied.
Innovation Solution
A blister package assembly featuring a rupture-resistant plastic film with strategically placed perforations or laser cuts that create weak points, allowing products to be pushed through without stretching, thus overcoming the noise and cost issues of metal foil and the puncture resistance of plastic films.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If metal foil is used as blister sheet, then puncturability is improved, but noise during dispensing increases and manufacturing cost increases
Solution Approach 1:
The patent changes the physical parameters of the plastic film by incorporating perforations or creases that create controlled weak points. This allows the film to rupture at specific locations with minimal force, transforming the film's behavior from stretch-resistant to puncturable at designated areas, thereby eliminating noise while maintaining ease of dispensing
Solution Approach 2:
The blister sheet is segmented into intact areas and perforated/creased areas. The perforations create discrete weak points that allow controlled rupture at specific locations, enabling quiet product dispensing while maintaining the overall integrity and sealing function of the non-perforated portions of the film
2Ease of operation
If metal foil is used as blister sheet, then puncturability is improved, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive metal foil with inexpensive plastic film that is modified through simple perforation or creasing processes. The plastic film serves as a disposable blister sheet that maintains puncturability while dramatically reducing material and manufacturing costs compared to metal foil alternatives
Solution Approach 2:
The patent substitutes the metal foil material system with a plastic film system modified by mechanical perforation or creasing. This replacement eliminates the need for expensive metal processing while achieving the same puncturability function through simpler, more cost-effective plastic fabrication techniques
3Ease of manufacture
If plastic film is used as blister sheet, then manufacturing cost decreases, but puncturability deteriorates due to stretching
Solution Approach 1:
The patent applies preliminary action by pre-forming perforations or creases in the plastic film during manufacturing. These pre-created weak points ensure that when force is applied during dispensing, the film ruptures at the perforated locations rather than stretching, thereby maintaining puncturability while using cost-effective plastic material
Solution Approach 2:
The patent changes the local mechanical parameters of the plastic film by introducing perforations or creases that create controlled weak points. This modification transforms the film's response to force from elastic stretching to plastic rupture at designated areas, enabling easy product dispensing while maintaining the cost advantages of plastic material
Data Source
AI summary
The package supports a plurality of consumable products. The package is a blister package having a plurality of consumable products housed in a blister tray and covered with a rupturable sheet. The sheet overlies the open surfaces of the blister tray and includes rupturable locations formed thereon for permitting passage of the product therethrough.