Inflatable Projection Screen Structure for Fast Stable Outdoor Setup

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing solutions for projecting images on a large scale in various environments, especially outdoors, require significant expense and labor for setup and stabilization, and lack compact and lightweight options for easy transportation and storage.

Innovation Solution

An inflatable projection/imaging screen structure made of sewn or heat-welded panels with a honeycomb/baffle interior for stability, using a blower for inflation and tie-downs for stabilization, allowing for quick setup and disassembly, and featuring a flexible screen surface for image projection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a large permanently installed screen is constructed with necessary supports to stabilize the screen, then the screen can be stabilized in outdoor environments, but the expense and labor to construct the screen increases significantly

Engineering Contradiction:
Improvescreen stabilityVSAvoidsupport structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses an inflatable membrane structure as the screen support system. The membrane is inflated to create a rigid-like stable structure that can support the screen without requiring heavy truss or frame supports. This flexible shell approach provides the necessary stability while eliminating complex support structures.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The patent employs pneumatic inflation of the membrane structure to create and maintain the screen's stable form. Air pressure is used to give the flexible membrane its structural integrity and stability, replacing the need for mechanical support frameworks.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Reliability

If a large permanently installed screen is constructed with necessary supports, then the screen can be stabilized, but the time and labor required to erect the screen increases

Engineering Contradiction:
Improvescreen stabilityVSAvoiderection time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent transforms the static support structure into a dynamic inflatable system. The membrane can be rapidly inflated to assume its stable configuration, allowing quick erection without the time-consuming assembly of permanent support structures. The system transitions from a deflated state to a stable operational state through pneumatic pressure.

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If a screen is designed to be large in size for viewing by a large number of individuals, then more people can view the image, but the screen becomes heavier and more difficult to transport and store

Engineering Contradiction:
Improvescreen areaVSAvoidscreen weight
Core Design Contradiction:
Area of stationary objectVSWeight of moving object

Solution Approach 1:

The patent uses a thin-film inflatable membrane to create a large-area screen structure. When deflated, the membrane folds into a compact, lightweight package that is easy to transport and store. When inflated, it expands to provide a large viewing surface area without the weight penalty of rigid support structures.

Inventive Principle:
Principle #30Flexible shells and thin films

4Area of stationary object

If a screen is designed to be large in size for viewing by a large number of individuals, then more people can view the image, but the screen becomes more difficult to erect and disassemble

Engineering Contradiction:
Improvescreen areaVSAvoiderection ease
Core Design Contradiction:
Area of stationary objectVSEase of operation

Solution Approach 1:

The patent employs a dynamically inflatable structure that transitions from a compact folded state to a large expanded state through pneumatic pressure. This dynamic transformation allows a large-area screen to be erected simply by inflating the membrane, eliminating the need for complex assembly procedures required by traditional large-screen structures.

Inventive Principle:
Principle #15Dynamics

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables rapid, safe, and stable projection of images for large audiences in various environments without the need for heavy truss support, facilitating easy transportation and storage by deflating and folding the structure.

Implementation Method 1

the inflatable structure having an inlet port in communication with a blower unit for inflation of the structure

Methodology Applied
Scientific EffectAir pressure: Pressure Increase

Implementation Method 2

the interior of the structure being constructed of a series of honeycomb/baffles or tubes for stability

Methodology Applied
Scientific EffectStructural stability through geometric configuration:

Implementation Method 3

the inflatable structure having an outlet port for release of air pressure within the inflatable structure when desired

Methodology Applied
Scientific EffectPressure release: Depressurisation

Data Source

PatentUS7446937B2Inflatable projection/imaging screen structure
Publication Date: 2008.11.04 PORETSKIN STEVEN M
  • US7446937B2 patent drawing
  • US7446937B2 patent drawing
  • US7446937B2 patent drawing

AI summary

An inflatable structure for viewing video images or projected images, the inflatable structure comprised of a plurality of panels sewn or heat welded together to form a desired shape, the interior of the structure being constructed of a series of honeycomb/baffles or tubes for stability, the inflatable structure having an inlet port in communication with a blower unit for inflation of the structure, the inflatable structure having an outlet port for release of air pressure within the inflatable structure when desired, one face of inflatable structure being formed with a fastening means in order to secure a flexible resilient panel of white pigment or silver pigment or other desired pigment to form a screen onto which the video or projected image is projected.