Plaster Coating Apparatus for Architectural Blocks

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Solution Overview

Problem

Existing concrete blocks and insulating concrete forms (ICFs) lack aesthetic appeal and are costly to make visually appealing, often requiring expensive and labor-intensive coverings like high-quality stone or brick.

Innovation Solution

An apparatus and method for applying a plaster composition to concrete blocks and ICFs, using a mold, manifold, pressurized delivery hose, vibrating mechanism, and shaping mechanism to create a cementitious coating that mimics the appearance of cut stone.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If concrete blocks or ICFs are used as building units, then structural strength and cost-effectiveness are improved, but aesthetic appeal deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidaesthetic appeal
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The patent applies a plaster composition to concrete blocks or ICFs that mimics the appearance of cut stone, creating a visual copy of the desired aesthetic without using actual stone. This resolves the contradiction by maintaining the structural advantages of concrete while achieving the aesthetic appeal of natural stone through surface treatment.

Inventive Principle:
Principle #26Copying

Solution Approach 2:

The patent creates a composite structure by combining the concrete block or ICF substrate with a plaster coating layer. The concrete provides structural strength while the plaster layer provides aesthetic appeal, effectively combining the benefits of both materials to resolve the contradiction between strength and appearance.

Inventive Principle:
Principle #40Composite materials

2Shape

If high-quality stone or brick coverings are applied to concrete blocks, then aesthetic appeal is improved, but cost and labor requirements increase

Engineering Contradiction:
Improveaesthetic appealVSAvoidcost and labor
Core Design Contradiction:
ShapeVSEase of manufacture

Solution Approach 1:

The patent uses a relatively inexpensive plaster composition as a temporary or permanent surface treatment that provides aesthetic appeal without the high cost of actual stone or brick. The plaster serves as a cost-effective alternative that achieves the desired appearance at fraction of the material and installation cost.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

Instead of using expensive authentic stone or brick coverings, the patent applies a plaster composition that copies the visual appearance of these materials. This creates a visual replica that achieves aesthetic appeal while avoiding the high material and labor costs associated with installing real stone or brick.

Inventive Principle:
Principle #26Copying

3Shape

If plaster composition is applied to block substrates, then aesthetic appeal and weather resistance are improved, but manufacturing complexity increases

Engineering Contradiction:
Improveaesthetic appealVSAvoidmanufacturing complexity
Core Design Contradiction:
ShapeVSDevice complexity

Solution Approach 1:

The patent describes a system where the plaster composition is automatically applied to moving block substrates through a conveyor system with spray nozzles. The process is self-regulating with feedback mechanisms that monitor application quality, reducing the need for manual intervention and making the manufacturing process more manageable despite the added complexity.

Inventive Principle:
Principle #25Self-service

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

The method produces architectural blocks with the appearance of cut stone at a lower cost and with greater design freedom than actual cut stone, while also providing weather resistance and reduced efflorescence through the use of supplementary cementitious materials.

Implementation Method 1

The pressurized delivery hose applies the plaster composition to the block substrate through the manifold as the block substrate moves inside and through the channel of the mold

Methodology Applied
Scientific EffectPressure: Pressure Increase

Implementation Method 2

A vibrating mechanism removes air bubbles from the plaster composition

Methodology Applied
Scientific EffectVibration: Vibration

Data Source

PatentUS20250178235A1Method for manufacturing architectural blocks with stone-like appearance
Publication Date: 2025.06.05 TUSCAN STONEWORX USA LLC
  • US20250178235A1 patent drawing
  • US20250178235A1 patent drawing
  • US20250178235A1 patent drawing

AI summary

Apparatus, systems, and methods for applying plaster compositions to block substrates to yield a product having the appearance of cut stone. An example apparatus includes: a manifold; a mold connected to the manifold with a channel to receive the block substrate; a delivery hose connected to a top of the manifold to deliver plaster composition to the manifold for application to the block substrate; a pressure release hose connected to the manifold; and a vibrating mechanism connected to the mold. A system further includes a conveyor that moves block substrates through the mold. An example method includes: wetting a surface of a block substrate; moving the block substrate through an application apparatus as described, applying a layer of plaster composition to a surface of the block substrate, vibrating the mold and block substrate during application of the plaster composition, and allowing the plaster composition to harden.