Oblong Polished Metal Pellets for Thermal Bath Media
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Solution Overview
Problem
Laboratory thermal baths, particularly those using water or solid aluminum blocks, face challenges with microbial contamination, limited vessel compatibility, and inefficient thermal transfer due to the size and shape constraints of conventional media, leading to maintenance and safety issues.
Innovation Solution
Thermally-conductive particulate media in the form of smooth, oblong pellets made from materials like aluminum, silver, or copper, which are moisture and gas impermeable, resistant to microbial growth, and can be coated with antimicrobial agents, allowing for efficient thermal transfer and accommodating various vessel sizes and shapes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If water is used as thermal bath media, then thermal transfer efficiency is improved, but microbial contamination risk increases
Solution Approach 1:
The patent changes the physical state and composition parameters of the thermal bath media from liquid water to solid particulate matter. This parameter change maintains thermal transfer functionality while eliminating the liquid environment that supports microbial growth, thereby resolving the contradiction between thermal efficiency and contamination risk.
Solution Approach 2:
The patent employs disposable or easily replaceable particulate media that can be discarded after use or after a single sterilization cycle. This approach eliminates the need for continuous maintenance and sterilization of reusable liquid media, addressing the contamination issue through replacement rather than perpetual treatment.
2Object-affected harmful factors
If solid aluminum blocks are used as thermal bath media, then microbial contamination is reduced, but vessel compatibility is limited
Solution Approach 1:
The patent divides the solid thermal media into numerous small particulate elements rather than using a single solid block. This segmentation allows the particles to flow and conform around vessels of various sizes and shapes, maintaining thermal contact while preserving the solid-state advantage of reduced microbial contamination.
Solution Approach 2:
The particulate media provides localized thermal contact at multiple points around each vessel, adapting the thermal transfer interface to the specific geometry of different vessels. This local adaptation enables compatibility with diverse vessel configurations while maintaining the contamination-resistant properties of solid media.
3Stability of the object's composition
If conventional particulate media are used, then vessel support stability is improved, but thermal transfer efficiency decreases
Solution Approach 1:
The patent ensures continuous thermal contact between the particulate media and vessels through optimized particle characteristics that promote sustained contact during thermal processing. The particles maintain stable support while continuously transferring thermal energy, eliminating interruptions in the thermal action.
Solution Approach 2:
The patent may employ composite particulate media combining materials with different thermal and mechanical properties. This composite structure enhances both the thermal conductivity for efficient heat transfer and the mechanical properties for stable vessel support, resolving the contradiction between these two functions.
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 thermally-conductive particulate media effectively maintains a constant temperature, reduces microbial contamination risks, supports vessels in a stable position, and enhances thermal transfer properties, while being adaptable to different vessel sizes and shapes, thus improving laboratory thermal bath performance and safety.
Implementation Method 1
thermally-conductive particulate media distinguished from conventional thermal bath media... capable of providing thermal transfer when used in standard laboratory thermal bath
Implementation Method 2
moisture and gas impermeable to prevent the harboring of contaminants
Data Source
AI summary
Systems and methods for controlling the temperature of items such as a sample in a vessel or a specimen, in a thermal bath using thermally efficient pellets as the thermal media. The pellets are typically oblong metallic or oblong metallic-coated pellets with rounded edges, a hardened surface, a smooth polished finish, and characteristics that enable efficient thermal communication between the bath's thermal source, the pellets, and the items that are inserted into the mass of pellets. Further, the pellets are dry and moisture and gas impermeable, and they resist microbial growth and are readily decontaminated by several methods including applying an antimicrobial compound to the pellets. The thermal source is controlled to achieve the desired temperature of the items inserted into the pellets.