Recent Patents on Engineering - Volume 19, Issue 4, 2025

BackgroundThe patent of cutting operations is carried out with a cutting tool that is fed parallel to or at right angles to the work axis. The main objective of this study is to minimize surface roughness and MRR.ObjectiveThe effect of cutting parameters on surface roughness and material removal rate is investigated using AISI 1045 steel as a workpiece material, and single and double carbide cutting tools are used under dr Read More

BackgroundSince the combination of its rapid processing speed and high energy input, laser beam welding is considered advanced and suitable for welding thin and lightweight metals. The residual stresses deposited in the parts as a result of rapid heating and cooling render laser-welded components susceptible to fractures and deformities.ObjectiveIn this patent, the modelling of the laser beam welding process during th Read More

This patent article underscores the pivotal significance of sealing membrane pores in augmenting material performance and delves into the foundational principles governing membrane pore sealing. It thoroughly scrutinizes the evolution of membrane pore sealing technology, with a particular emphasis on anodization and micro-arc oxidation processes. Methods for sealing membrane pores are classified into hydratio Read More

Micro-hydraulic components and key technologies are important directions of fluid transmission and control, which are widely used in the national defense industry, production line conveying equipment, exoskeleton robot, and more.The current development status of miniature hydraulic components and key technologies is summarized, and the existing advantages of hydraulic components and technology are pointed out, Read More

IntroductionIn the target detection technology of underwater robots, many patents and papers have aimed to enhance the accuracy of underwater target detection, but limited resources in underwater robots overlook lightweight detection methods.MethodsIn this study, we proposed an underwater target detection method using lightweight devices while ensuring high accuracy that could be maintained with limited resou Read More

Oil mist separation technology and oil mist separation devices are indispensable components of modern industry and engines and are important means to improve air quality and reduce oil mist diffusion. However, in the study of their separation efficiency and oil droplet collection, there are still some techniques that need breakthroughs to be able to better separate oil mist in the future.Through the introduction and discussio Read More

IntroductionThis patent article emphasizes the importance of sustainable materials in energy storage research. These ionic polymer blends show potential as eco-friendly alternatives for practical energy storage systems. We synthesized three distinct compositions of ionic polymer blends (25/15/60, 30/15/55, and 35/15/60) using solution casting techniques. Our focus was on PVDF, PVP, and PVSA—ionic polymers that offer Read More

BackgroundDevelopment of ionic membranes by using generic polymers polyvinyl alcohol (PVA) and Polystyrene sulfonic acid (PSSA), which have been implemented as sensing devices. Our health is directly influenced by wearable sensors therefore, we need to enhance its quality. Wearable sensors depend on the sensitivity of the material as well as the phase transition of ions.MethodsThe phase transition of ion/charge is ana Read More

IntroductionGas Hydrates, or Clathrate Hydrates, have been the subject of increasing scientific and industrial attention due to their potential as an alternative energy source, their role in climate change, and their association with geohazards. The growth of new indigenous gas supply sources could impart a significant positive ripple effect on a country's economy, ecological balance, and energy landscape. This burgeoning inter Read More

BackgroundsSleep Apnea (SA) is a sleep-related breathing disorder diagnosed in clinical laboratories. The gold standard is Polysomnography (PSG), a multi-parameter evaluation of a sleep monitoring system that records the biological signals during overnight sleep. Apart from PSG recording, apnea events are recorded by various other bio-signals called Electrocardiogram (ECG), Electroencephalogram (EEG), Oxygen Saturatio Read More

BackgroundHeavy-duty hydrostatic bearings of the original parallel friction pair are prone to hydrostatic loss problems during operation.AimsThe aim is to solve the problem of lubrication failure, the original hydrostatic oil pad was designed as a micro-inclined plane, and the dynamic pressure caused by the micro-wedge of the oil pad at a higher speed was used to compensate for the static pressure loss of the bearing.Objectiv Read More

This patent paper provides an overview of representative patents related to space docking mechanisms in terms of structural and functional optimization. The working principle and characteristics are explained. By comparing different types of space docking mechanisms, we summarized the main problems of the current space docking mechanism and proposed some improvements. They include electromagnetic docking, Read More

Coal is mostly stored in coal bunkers. As the amount of coal in the bunker increases, the concentration of coal dust inside the bunker also increases, making it susceptible to accidents such as fires and explosions. Additionally, the leakage of coal dust particles can cause significant environmental pollution in the surrounding area, leading to resource wastage. To improve energy efficiency, reduce material transport dust concentrati Read More