1877 District heating District heating distributes heat generated in a centralized location for residential and commercial heating requirements.
The heat is often obtained from a cogeneration plant burning fossil fuels but increasingly biomass, although heat-only boiler stations, geothermal heating and central solar heating are also used, as well as nuclear power.
The knuckle coupler was invented and patented by Eli H. 1874 Fire sprinkler (automated) A fire sprinkler is the part of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a pre-determined temperature has been reached. Parmelee of New Haven, Connecticut invented and installed the first closed-head or automated fire sprinkler in 1874. A jockstrap, also known as a jock, jock strap, strap, supporter, or athletic supporter, is an undergarment designed for supporting the male genitalia during sports or other vigorous physical activity.
Davis did not have the required money to purchase a patent, so he wrote to Strauss suggesting that they both go into business together.
Early Levis, called "waist overalls", came in a brown canvas duck fabric and a heavy blue denim fabric.
1880 Oil burner An oil burner is a heating device which burns fuel oil.
The oil is directed under pressure through a nozzle to produce a fine spray, which is usually ignited by an electric spark with the air being forced through by an electric fan.
Copyright protection secures a person's right to his or her first-to-invent claim of the original invention in question, highlighted in Article I, Section 8, Clause 8 of the United States Constitution, which gives the following enumerated power to the United States Congress: On April 10, 1790, President George Washington signed the Patent Act of 1790 (1 Stat. 117) further clarified United States patent law to the extent of establishing a patent office where patent applications are filed, processed, and granted, contingent upon the language and scope of the claimant's invention, for a patent term of 14 years with an extension of up to an additional 7 years. From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents 1873 Jeans Jeans are trousers generally made from denim.
109) into law proclaiming that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not before known or used". However, the Uruguay Round Agreements Act of 1994 (URAA) changed the patent term in the United States to a total of 20 years, effective for patent applications filed on or after June 8, 1995, thus bringing United States patent law further into conformity with international patent law. Jeans became popular among teenagers starting in the 1950s which remains as a distinct icon of American fashion.We are a strategic consulting company providing product and menu development, market research and content marketing services to packaged food companies and restaurant chains.As a contemporary hybrid of market research, culinary, advertising and packaging experts, we are helping launch the next generation of food with better taste, nutrition and engagement.It takes its name from the first six characters seen in the far left of the keyboard's top row of letters.The QWERTY design was invented and patented by Christopher Sholes in 1874.Forstner bits can cut on the edge of a block of wood, and can cut overlapping holes.