Pre-Roll Packing with Tamping for Uniform Fill Density

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Solution Overview

Problem

Existing methods and devices for packing particulate plant matter in pre-rolls, such as cones, result in inconsistent density and amount, leading to heterogeneous packing, which can cause weak points, uneven burning, and inconsistent pharmacological effects, especially in medicinal joints.

Innovation Solution

A method involving placing an open-ended pre-roll in a holder with the distal end upwards and filling it with particulate plant matter over time while repeatedly tamping it with a tamper to achieve homogeneous packing, using a device that includes a pre-roll holder, filling conduit, and tamper to ensure precise weight and density.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If existing methods and devices are used for packing particulate plant matter in pre-rolls, then the packing process is simple and quick, but the density and amount of plant matter are inconsistent, leading to heterogeneous packing

Engineering Contradiction:

Improvedensity consistencyVSAvoidpacking process complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The packing process is divided into multiple sequential stages: initial filling, tamping, and fine-filling. Each stage serves a specific function - initial filling provides bulk material, tamping compacts and levels the surface, and fine-filling adds precise amounts to achieve target weight. This segmentation allows each operation to be optimized independently, improving overall density consistency without requiring a completely complex integrated system.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The tamping operation is performed as a preliminary action before fine-filling. By compacting and leveling the plant matter surface through tamping first, the subsequent fine-filling operation can more accurately control the final weight and density. This preliminary preparation reduces variability in the final product without adding excessive complexity to the overall process.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If existing packing methods are used, then the process is fast, but the burning is uneven and pharmacological effects are inconsistent

Engineering Contradiction:

Improveburning uniformityVSAvoidpacking speed

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The packing process uses periodic, repetitive tamping motions at controlled intervals during filling. This periodic compaction ensures uniform density throughout the plant matter column, which directly translates to even burning characteristics. The rhythmic nature of the tamping allows for consistent application of force, improving reliability of burn uniformity while maintaining reasonable production speed through automation.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The filling, tamping, and fine-filling operations are performed in continuous sequence without interruption. The system maintains continuous useful action by immediately following initial filling with tamping, then promptly adding fine-fill material to reach target weight. This continuous process minimizes variability introduced by interruptions while ensuring consistent density and burning characteristics throughout the pre-roll.

Inventive Principle:

Principle #20Continuity of useful action

3Measurement precision

If manual packing is used, then the process is simple, but the amount and weight of plant matter vary significantly

Engineering Contradiction:

Improveweight consistencyVSAvoidmanufacturing simplicity

Core Design Contradiction:

Measurement precisionVSEase of manufacture

Solution Approach 1:

The system incorporates weighing and measurement feedback to monitor the weight of plant matter in each pre-roll. The fine-filling operation is controlled based on feedback from weight measurements, adding material only until the target weight is achieved. This feedback loop ensures consistent weight and amount across all pre-rolls while automating the process to maintain manufacturing simplicity through programmed control rather than complex manual operations.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

Manual judgment and estimation in packing are replaced with automated mechanical weighing and controlled dispensing systems. The mechanical substitution of human operators with automated scales and controlled filling mechanisms eliminates variability in weight measurement and material addition, achieving precise weight consistency while keeping the manufacturing process simple through automation rather than human skill.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 and device ensure consistent density and amount of plant matter in pre-rolls, reducing rejection rates and ensuring even burning and consistent pharmacological effects.

Implementation Method 1

repeatedly tamping particulate plant matter contained inside the inner volume of the pre-roll with a tamper

Methodology Applied

Scientific EffectCompression: Compression

Implementation Method 2

filling the inner volume of the pre-roll through the open distal end with particulate plant matter over a period of time

Methodology Applied

Scientific EffectGravity: Gravitation

Data Source

PatentUS20250380733A1Packing plant matter in pre-rolls to make smokable product

Publication Date: 2025.12.18 SHAHAR ORI

AI summary

Disclosed are methods and devices for packing particulate plant matter in pre-rolls to make smokable products, for example, packing particulate plant matter from Cannabis plants in cones to make joints.