In 1989, the Thermos operating companies in Japan, the UK, Canada and Australia were acquired by Nippon Sanso K.K., which had developed the world's first stainless steel vacuum bottle in 1978,[3] before it renamed itself Taiyo Nippon Sanso Corporation, as which it remains known in the present day. Taiyo Nippon Sanso also acquired the original Thermos GmbH company in Langewiesen, Germany,[3] that still owned 15 original patents. This part of Thermos had been located behind the "Iron Curtain" since 1945 but the German reunification encouraged foreign investments.
The word thermos is a genericized trademark used sometimes, since the early 20th century, as a term for any vacuum-insulated flask regardless of manufacturer.[4] From around 1910 until 1922, the American Thermos Bottle Company strove for this synonymity, as it was considered free advertising; the value of such advertising was estimated, in 1917, at between $3 and $4 million worth in American dollars alone. As the company and the vacuum-flask market grew, it became increasingly protective of its trademark, which it registered in 1923, following a narrow lawsuit victory over flask retailer W. T. Grant Company. Starting in 1935, Thermos employed a clipping service to find unauthorized usages and protested to dictionary editors who included thermos as a word rather than a proper name.[4] A 1940 internal memo said the definitions "undoubtedly would be cited against us in a lawsuit to defend the trademark. The best we can do is to try to 'purify' the definition of the word."[5] Into the 1950s, Thermos continued its efforts to protect it, creating various products (tents, lanterns, campstoves) bearing the name to affirm it as a brand name, not an item.
In 1958, Aladdin Industries announced intent to sell "thermos bottles", and the Thermos trademark holder (then named the 'King-Seeley Thermos Company') sued for infringement. In 1962, Judge Robert Anderson ruled that thermos was a generic term, due largely to Thermos's own publicization and lack of diligence in defending the trademark. Aladdin (or any company) could mark its bottles with a lowercase "thermos", while the Thermos company retained the uppercase usage.[4][6] This decision rendered the trademark partially genericized in the US Second Circuit (New York, Connecticut, and Vermont), but it remains a registered trademark in the rest of the US, and in over 100 other countries.[7]
In 1892, James Dewar, a Scottish-born scientist, working at Cambridge University, invented the vacuum-insulated flask, a scientific vessel for storing liquefied gases. It was not a household item fit for everyday use like carrying warm coffee. In 1903, the German glass blower Reinhold Burger received a German patent[8] for an isolating vessel for everyday use. In 1904, Burger registered the trademark Thermos[9] for his patent. In 1906, the company Thermos GmbH was formed by Burger with Albert Aschenbrenner and Gustav Robert Paalen. The production of Thermos-branded bottles in the United States was based on US patent 13,093 by Burger and Aschenbrenner.[10]
The vacuum flask is today commonly called the Dewar flask among chemists in recognition of its inventor, though he did not register a patent or trademark for his invention. When Burger and Thermos GmbH did so, Dewar sued, but lost his court case to claim intellectual property rights to the invention.[11]
The citizens of Norwich, Connecticut, sought out the Thermos company to build and operate a plant on the banks of the Thames River.[12] A group of citizens under the group "Norwich Boomers" rallied the community to purchase 27 acres of land for $750 an acre so that it could be used for the Thermos. The house of Dr. William H. Mason was also on the property, and it was also a part of the purchase.[12] The Italianate house was converted to be used as an office building.[13] Together, the citizens and the city raised $78,000. A contract was signed on February 14, 1912, it would make Norwich the home of the Thermos Plant and that Thermos would use Norwich's name on its advertising. Allyn L. Brown acted as attorney and provided counsel for the deal.[12] Thermos products produced in Norwich bear a stamp "Made in Norwich".[14]
The construction of the plant was a boon for Norwich, which helped the employment of the area after the decline of the textile industry.[14] The operations expanded into nearby Taftville, Connecticut and together the plants were active until they were phased out and shut down in 1988.[14][15] The Norwich site was listed as a historic district on the National Register of Historic Places in 1989.[16]
In 1955, the Thermos company, then named the American Thermos Bottle Company, acquired control of Hemp and Company, Inc., of Macomb, Illinois, manufacturers of the Little Brown Jug and other insulated jugs and chests, as well as Duncan Hines-branded outdoor grills. To reflect the growing diversity of products, the names of the North American companies were changed again in 1956; the US corporation became the American Thermos Products Company, while what had been the Canadian Thermos Bottle Co. Ltd. changed its name to Canadian Thermos Products Limited.[3]
Thermos products made a major impact in the 1950s and sold over 2 million units.[citation needed] In 2004, the Smithsonian Institution museum featured Thermos products as part of its "Taking America to Lunch" retrospective of lunch kits from the 1880s to the 1980s.[14]
But as a nondrinker of that bitter, brown liquid, I wanted to know: What can travel mugs do for me? So a few friends and I drove from Santa Fe to Jurez, Mexico, this fall and visited the extremely disputed birthplace of an alcoholic drink dear to the hearts of many: the margarita. After filling four thermoses with the frozen cocktail, we drove back to Santa Fe and taste-tested the concoction from each travel mug.
We admit that, by now, several margaritas into the evening, the tequila may have altered the accuracy of our judgments as well as our mental states. But there was one thing we knew for sure: we had undoubtedly made the most of our weekend for the sake of science.
After picking chunks of chicken out of chicken noodle soup (because one wants all the meat and the other wants all the noodles), I felt a need to readjust. There were some minor tweaks in general, but there was one major change that triggered my success.
I work full time, all three children are in sports and we are active in our community, so time can be very limited, even on the weekends! I have found that if I make a crock pot of protein (chicken, ground beef, turkey, etc), it can really simplify the process.
The next morning, I heat the ingredients in the microwave, throw a taco shell in their lunchboxes and layer the chicken, beans, rice (or any combination) in the thermos, putting the toppings on the side.
I can tell you the thermos lunch for kids has been a game changer in our family. My children come home in a better frame of mind simply from having substance for lunch and have learned to prefer it to over 7 bags of highly-processed snacks.
**Please be aware that while iam8bit has taken efforts to ensure that your thermos product is undamaged, some boxes may not arrive in mint condition. We will not provide replacement boxes on ANY Alan Wake 2 Thermos purchases.
What are we talking about? A thermos, of course! And it must be magic, right? After all, how can it both keep hot things hot and cold things cold? Would you believe it's actually all science? It's true!
A thermos is a bottle with a double-walled container inside of it. The air between the two walls is sucked out during construction, creating a vacuum. Instead of containing some kind of heating element to keep hot things hot, a thermos is designed to keep hot things hot by not allowing heat to escape.
A thermos keeps cold things cold in the same way. It doesn't contain some kind of cooling device. The same vacuum that keeps hot things hot keeps cold things cold. Heat that might otherwise transfer to the cold contents of the thermos is prevented from reaching it because of the vacuum between the thermos walls.
Today's thermoses are constructed much more sturdily than those in the past. The first thermoses featured metal exteriors with glass interior walls. These thermoses often ended up getting broken when accidentally dropped.
Modern thermoses are usually made out of layers of plastic that help reduce heat transfer. Some thermoses also contain layers of Styrofoam that further reduce heat transfer. If you use a thermos today, you can be fairly certain that, hours later, your soup will still be hot or your lemonade will still be cold!
Need to keep your hot soup hot and your cold drink cold? Isn't it cool that you can use the same type of container to do both? Grab a friend or family member and explore the scientific magic of the thermos in greater depth through one or more of the following activities:
Great question! There IS a limit to how long things will stay hot (or cold) in a thermos, but we're not sure what factors into the loss (or gain) of temperature. Sounds like a great WONDER JOURNEY for you to take! Let us know what you find out!
This Wonder, though, does talk about how vacuums with the absence of air keeps things hot or cold! Since heat is transferred through the air, to keep heat from escaping, you would need a vacuum because there is no air in a vacuum. If there's no air to transfer heat, then the heat stays where it is!
Thanks for asking, caroline! We ask that Wonderopolis be listed as the author. Since we do not list the publish date for our Wonders of the Day, you may put the date you accessed this page for information. The following is how you would cite this page:
Thanks for joining us, Hassan! Some topics may seem pretty basic to you, but there are others who haven't learned about them yet. Just as you learn at your own pace, we all learn at our own paces. We hope you understand! :)