วันพฤหัสบดีที่ 20 สิงหาคม พ.ศ. 2552

getting a patent for an invention

getting a patent for an invention
of all the tools in our society, only the wheel and the lever can be used with common household knife for the title of All-Time Most useful. Essentially, in the kitchen as it is on the battlefield, and in a variety of trade and craft, the knife is one of the building blocks of civilization.

Knife History

It is not only useful, but the knife is perhaps the oldest human tool. Rudimentary knives have been discovered, what the anthropologists call the Oldowan tools - the oldest stone tool in the history of the 2.5 to 1.5 million years of hominid different from Australopithecus to Homo habilis. The earliest knives were basically well-sharpened rocks to butcher dead animals. Homo habilis was, according to current scientific consensus that species, the imaginative design of the anchor similar sharp points made of wood and bone. Later, during the Paleolithic Era (a period of overlap with the later Oldowon Tools) This wood and bone blades gave way in the series of knives from flint, a special form of the mineral quartz, then copper (introduced ca. 8000 BC), Bronze (ca. 3300 BC), iron (1500 BC), and (later) steel (ca. 1400 BC), as the craft of metallurgy. The bronze and iron knives, if not the extreme sharpness of the flint knife, offers greater durability.

Technological advances have continued to yield new options for knife makers, knives made of carbon today, titanium, ceramics and other materials. But archaeologists, collectors and knife enthusiasts, and organizations like the American Society Blade Smith, continue to ensure the craft of the old metal knife making. The centrality of knives to civilized decency in the Western world (they are one of the three devices at each meal), their presence in many myths, legends and ceremonies throughout the world, and their appeal to antiquarians and military historians to ensure that the knife remains a useful, not only practical, part of human culture. From surgery to electron microscopy, diving diamond cutting, knives are everywhere, and they take in some prominent places in the world the culture of the greatest stories - the sacrifice of Isaac, or the knife of obsidian Titlacahuan, brother to Quetzalcoatl Toltec mythology.

Knife safety

Of course, knife, if improperly handled, as dangerous as they are necessary. But with a little common sense, and knowledge of knife safety, that the risk can be minimized.

- Always cut away from your body when using a knife.

- Try not to get a knife in midair fell. Let it fall, then pick it up by the handle.

- Never with a knife and not with a knife while driving in the open.

- If your knife credit to another person to him about them first.

- Knives are not toys. Item no. Hold it tightly wrapped or folded, if you are not with them.

- Use a knife as a lever. In other words, not with a knife to open the door PRY, which may cause the tip break off and possibly injure someone.

- Keep your knives sharpened.

- If you or someone else is cut, go to 911th If the wound is small, pressure on the area near the wound, while it is collected (if possible) about the level of the heart.

Together with advances in technology come advances in knife blades in safety. Safecutters.com represents the latest development in knife safety. Knives come in all shapes and sizes, and not at home or office is complete without a well-made utility knife or safety knife. Safecutters.com offers a convenient and secure online package of door openers and safety knives, ideal for people in sending and receiving in the mail room, for the professional and amateur mover, or someone who works with moving boxes, who sells moving supplies or shipping material, and - finally - who receives packages in the mail.

SafeCutters distributes the Klever Kutter and Klever Koncept, two of the safest tool blades are available. Klever Kutter virtually eliminates the risk of workplace injuries, while the permanently shielded blade protects packaged products. It was established by the Department of Homeland Security for safe air travel.

แสดงความคิดเห็น