"Percy Spencer Percy Lebaron Spencer (July 19, 1894 – September 8, 1970) was an American physicist and inventor. He became known as the inventor of the microwave oven. Spencer was born in Howland, Maine. Eighteen months later, Spencer's father died, and his mother soon left him in the care of his aunt and uncle. His uncle then died when Spencer was just seven years old. Spencer subsequently left grammar school to earn money to support himself and his aunt. From the ages of twelve to sixteen, he worked from sunrise to sunset at a spool mill. At the later age,"
"sensation that continues to this day. A microwave oven cooks or heats food by dielectric heating. Cooking food with microwaves was discovered by Percy Spencer on October 8, 1945, while building magnetrons for radar sets at Raytheon. Spencer was working on an active radar set when he noticed a strange sensation, and saw that a peanut candy bar he had in his pocket started to melt. Although he was not the first to notice this phenomenon, as the holder of 120 patents, Spencer was no stranger to discovery and experiment, and realized what was happening. The radar had melted his"
"1933 Chicago World's Fair demonstrated cooking meals with a 60 MHz radio transmitter. In 1945 Percy Spencer, an engineer working on radar at Raytheon, noticed that microwave radiation from a magnetron oscillator melted a candy bar in his pocket. He investigated cooking with microwaves and invented the microwave oven, consisting of a magnetron feeding microwaves into a closed metal cavity containing food, which was patented by Raytheon on 8 October 1945. Microwave heating became widely used as an industrial process in industries such as plastics fabrication, and as a medical therapy to kill cancer cells in microwave hyperthermy. The traveling"
"radar systems, particularly for submarine detection. Raytheon ranked 71st among United States corporations in the value of World War II military production contracts. Raytheon's research on the magnetron tube revealed the potential of microwaves to cook food. In 1945, Raytheon's Percy Spencer invented the microwave oven by discovering that the magnetron could rapidly heat food. In 1947, the company demonstrated the Radarange microwave oven for commercial use. In 1945, the company expanded its electronics capability through acquisitions that included the Submarine Signal Company (founded in 1901), a leading manufacturer of maritime safety equipment. With its broadened capabilities, Raytheon developed the"
"Spencer's microwave was popcorn, and the second was an egg, which exploded in the face of one of the experimenters. To verify his finding, Spencer created a high density electromagnetic field by feeding microwave power from a magnetron into a metal box from which it had no way to escape. When food was placed in the box with the microwave energy, the temperature of the food rose rapidly. On 8 October 1945, Raytheon filed a United States patent application for Spencer's microwave cooking process, and an oven that heated food using microwave energy from a magnetron was soon placed in"
"gas stove included the AGA cooker invented in 1922 by Gustaf Dalén. The first electric ovens were invented in the very late 19th century, however, like many electrical inventions destined for commercial use, mass ownership of electrical ovens could not be a reality until better and more efficient use of electricity was available. More recently, ovens have become slightly more high-tech in terms of cooking strategy. The microwave as a cooking tool was discovered by Percy Spencer in 1946, and with the help from engineers, the microwave oven was patented. The microwave oven uses microwave radiation to excite the molecules"
"production of electromagnetic waves of a small enough wavelength (microwaves). American engineer Percy Spencer is generally credited with inventing the modern microwave oven after World War II from radar technology developed during the war. Named the ""Radarange"", it was first sold in 1946. Raytheon later licensed its patents for a home-use microwave oven that was first introduced by Tappan in 1955, but these units were still too large and expensive for general home use. Sharp Corporation introduced the first microwave oven with a turntable between 1964 and 1966. The countertop microwave oven was first introduced in 1967 by the Amana"
"microwave cooking oven, eventually named the Radarange. In 1947, the first commercially produced microwave oven was about 6 feet tall, weighed about 750 lbs, and cost about 5,000 US$. In 1967 the first relatively affordable ($495) and reasonably sized (counter-top) microwave oven was available for sale. Spencer became Senior Vice President and a Senior Member of the Board of Directors at Raytheon. He received 300 patents during his career, and a building at the Raytheon Missile Defense Center in Burlington, Massachusetts is named in his honor. Other achievements and awards, besides the Distinguished Public Service Award, included a membership of"
"egg was placed in a tea kettle, and the magnetron was placed directly above it. The result was the egg exploding in the face of one of his co-workers, who was looking in the kettle to observe. Spencer then created the first true microwave oven by attaching a high density electromagnetic field generator to an enclosed metal box. The magnetron emitted microwaves into the metal box blocking any escape, allowing for controlled and safe experimentation. He then placed various food items in the box, while observing effects and monitoring temperatures. Raytheon filed a patent on October 8, 1945 for a"
"Florida housewife, began throwing Tupperware parties in 1951 in order to demonstrate the product and explain the features. 1946 Spoonplug A spoonplug is a form of fishing lure. The spoonplug was invented by Elwood L. ""Buck"" Perry, then a physics and math teacher in Hickory, North Carolina. Elwood Perry combined science with a logical approach to fishing to create a ""total fishing system."" He is credited as being the father of structure fishing and was later inducted into the National Freshwater Fishing Hall of Fame. 1946 Chipper teeth A chipper teeth is a variant of a saw chain used on"
"government in September 1940. The magnetron was later described by American historian James Phinney Baxter III as ""[t]he most valuable cargo ever brought to our shores"". Contracts were awarded to Raytheon and other companies for mass production of the magnetron. In 1945, the specific heating effect of a high-power microwave beam was accidentally discovered by Percy Spencer, an American self-taught engineer from Howland, Maine. Employed by Raytheon at the time, he noticed that microwaves from an active radar set he was working on started to melt a chocolate bar he had in his pocket. The first food deliberately cooked with"
"and system utilities and libraries. The Honeywell Kitchen Computer, or H316 pedestal model, of 1969 was a short-lived product offered by Neiman Marcus as one of a continuing series of extravagant gift ideas. It sold for $10,000 ($77,804 in 2016 dollars), weighed over 100 pounds (over 45 kg) and was advertised as useful for storing recipes. The imagined uses of the Honeywell Kitchen Computer also included assistance with meal planning and balancing the family checkbook – the marketing of which included highly traditional and patronizing representations of housewives. Reading or entering these recipes would have been nearly impossible for the"
"were also issued. CT2 won several awards, including Industrial Research Magazine's IR-100 1972 best-product award and a citation from the United States Steel Association. Raymond Baxter demonstrated the CT2 on the BBC series ""Tomorrow's World"". He showed how the CT2 could cook through a slab of ice. Sears Kenmore sold a free-standing oven/stove with four induction-cooking surfaces in the mid-1980s (Model Number 103.9647910). The unit also featured a self-cleaning oven, solid-state kitchen timer and capacitive-touch control buttons (advanced for its time). The units were more expensive than standard cooking surfaces. In 2009 Panasonic developed an all-metal induction cooker that used"
"Immersion blender An immersion blender, stick blender, wand blender, hand blender, or Bermixer (after the brand name of professional models made by Dito-Electrolux) is a kitchen blade grinder used to blend ingredients or purée food in the container in which they are being prepared. The immersion blender was invented in Switzerland by , who patented the idea on March 6, 1950. He called the new appliance ""bamix"", a portmanteau of the French ""batere et mixe"" (beats and mixes). Larger immersion blenders for commercial use are sometimes nicknamed boat motors (popularized by Emeril Lagasse and Alton Brown). Uses include puréeing soups"
"the brand ESGE Zauberstab. Bamix's current products include a number of different models of their stick blender. 1950 the Swiss Roger Perrinjaquet invents an appliance, which is patended on the 6th March 1950 under the section handheld appliances. His wish was to work with this appliance directly in pans on the stove. Bamix, the name of this handheld blender is composed of the words battre and mixer (beat and mix). Without having investors, Perrinjaquet sold the patents to ESGE Ltd, which was producing initially bicycle racks, electrical kitchen knives, watches and small electrical motors. At the end of the Fifties,"
"Crumber A crumber (also called a table crumber) is a tool designed to remove crumbs from a tablecloth, used especially in fine dining situations. The modern form of the crumber was invented in 1939 by John Henry Miller, owner of a restaurant on West Fayette Street in Baltimore. The crumber was intended to be carried ""conveniently in the pocket"", and less conspicuous than the brush and pan customarily used to remove crumbs after the meal. Miller was granted a patent for his invention in 1941, obtained another patent for improvements in 1946, and ultimately and later sold his patents to"
"the """"work of the washboard""""—saving consumers time and rendering the historic method of ""sun-bleaching"" (by laying clothes out in the sun) unnecessary. Persil was the first commercially available self-activated laundry detergent (combining bleach with the detergent). The invention of Persil was a significant breakthrough. The name, ""Persil"", is derived from two of the original ingredients, sodium perborate and silicate. The original name was deemed unsuitable as an international brand because it is hard to pronounce in some languages. Coincidentally, ""persil"" is the French word for the herb, parsley. Persil is sold in powder, liquid detergent, liquid capsule, liqui-gel, and tablet"
"blowout preventer was invented by Granville Sloan Knox in 1946 who received a patent on September 9, 1952. 1946 Tupperware Tupperware is airtight plastic containers used for the preparation, storage, containment, and serving of perishable food in the kitchen and home. Tupperware was invented in 1946 by American chemist Earl Silas Tupper who devised a method of purifying black polyethylene slag, a waste product produced in oil refinement, into a molded substance that was flexible, tough, non-porous, non-greasy and translucent. Available in many colors, the plastic containers with ""burp seal"" did not become a commercial success until Brownie Wise, a"
"to everyday domesticated household needs early on in the 19th century. Her invention was the pastry fork. Mangin got the patent for the pastry fork on March 1, 1892, in Queens, New York. The pastry fork is an attachment that electrically mixes without the need for arm work. This tool had many uses, including beating eggs, thickening foods, making drawn butter, mashing potatoes, making salad dressings, and most importantly, kneading pastry dough. This improved the lives of many women, and eventually lead to more electric mixing inventions that are used to this day. Kneading pastry dough by hand is a"
"for radish, a cube slicer for vegetables and bread, the Schneid- and Fleischboy (“slicing boy” with five serrated circular blades for slicing meat) or the lemon wedge squeezer which was used in tea- and coffeehouses all over the world were introduced as well. Since 1968, ritterwerk GmbH has been developing and producing electrical household appliances that – due to their space-saving design – can also be integrated in kitchen drawers. Other than household appliances and built-in systems for kitchen drawers, the company also produces devices such as the ritter peeler which gained popularity especially in Asia (e.g. Japan) and is"
"1925 the company formed what would become, Canadian Cellucotton Products Limited, for the marketing of these and other products in Canada and internationally. The first practical electric razor, the Sunbeam ""Shavemaster"" and the Remington ""Close Shaver"" made available in the US in 1937 and in Canada shortly thereafter. With a base of caustic soda, the world's first oven cleaner, Easy-Off, was invented in Regina in 1932 by Herbert McCool and manufactured in his home in that city until 1946, when production shifted to Iberville, Quebec. The product has since become the most popular oven cleaner in the world. The grand"
"Winston L. Shelton Winston Laverne Shelton (born May 3, 1922) is an American inventor, electrical engineer and entrepreneur who has been awarded 76 US patents as an individual or as part of a team, as well as many corresponding patents. Shelton's patents have had an impact relating to home washing machines and the preparation of food in both the Quick Service Restaurant (QSR) industry and fine dining. Technologies Shelton developed while an engineer at General Electric are still in use after more than fifty years. His patent for the modern ""Washing Machine"" (US 3257830 A), licensed in 1965 to General"
"mustard spoon and lettuce fork. Steel was always used for more utilitarian knives, and pewter was used for some cheaper items, especially spoons. From the nineteenth century, electroplated nickel silver (EPNS) was used as a cheaper substitute for sterling silver. In 1913, the British metallurgist Harry Brearley discovered stainless steel by chance and this metal has come to be the predominant one used in cutlery. An alternative is melchior, corrosion-resistant nickel and copper alloy, which can also sometimes contain manganese and nickel-iron. Plastic cutlery is made for disposable use, and is frequently used outdoors for camping, excursions, and barbecues for"
"another salad dryer device in 1974. Mantelet was particularly proud of his salad dryer design. Of the new product, one user commented that, ""it saves shaking my salad basket out of the kitchen window."" Gilberte Fouineteau, another French inventor, has been credited as the creator of the modern salad spinner. He filed a patent for a device in 1973. It too used centrifugal force to dry and drain vegetables and salads. The patent describes its difference being the removable basket and a lack of a central post. The Mouli Manufacturing Co., a kitchen supply brand, introduced the salad dryer to"
"a well-furnished kitchen. Sarah Tyson Rorer's 1886 ""Philadelphia Cook Book"" listed more than 200 kitchen utensils that a well-furnished kitchen should have. However, many of these utensils were expensive and not affordable by the majority of householders. Some people considered them unnecessary, too. James Frank Breazeale decried the explosion in patented ""labour-saving"" devices for the modern kitchen—promoted in exhibitions and advertised in ""Household Guides"" at the start of the 20th century—, saying that ""the best way for the housewife to peel a potato, for example, is in the old-fashioned way, with a knife, and not with a patented potato peeler""."
"spiral mixers cannot. They are normally used in Australia, India and Europe too. The mixers are used all over world. A hand mixer is a hand-held mixing device. A handle is mounted over an enclosure containing the motor. The motor drives the beaters which are immersed in the food to perform the mixing action. The motor must be lightweight as it is supported by the user during use. The user may use any suitable kitchen container to hold the ingredients while mixing. The electric hand-mixer was invented in 1964 by Dynamic, sited in western France. Its products are essentially the"
"of these patents was issued to Lewis S. Chichester on July 3, 1860 for a cast iron squeezer. The stated purpose of the invention was ""to obtain a simple, economical and durable implement whereby lemons may be squeezed for domestic purposes with much less power and with far greater facility than by the ordinary squeezers in general use."" Not all squeezers are actually meant to squeeze. Perhaps the most famous example of this is the Juicy Salif, designed by Philippe Starck in 1990. It is considered an icon of industrial design that has been displayed in New York's Museum of"
"to home appliances. By 1948, Thermador introduced the first ""Pro Range"" for residential use. Patterned after commercial restaurant equipment, Thermador developed the first home version warming drawer in 1952, a handy kitchen appliance that keeps dishes and foods warm while the oven is being used. Thermador continued to improve on kitchen appliances with the first self-cleaning oven in 1963. During the 1970s, Thermador continued to introduce kitchen appliance firsts, including the first ""smooth top"" cooktop using material developed by Corning Incorporated in 1970. Also, notable personalities such as Julia Child used Thermador oven in her critically acclaimed PBS TV series,"
"(80 l) mixer was standard equipment for most large bakeries. In 1919, Hobart introduced the Kitchen Aid Food Preparer (stand mixer) for the home. Older models of mixers originally listed each speed by name of operation (ex: Beat-Whip would be high speed if it is a 3-speed mixer); they are now listed by number. An eggbeater is a handheld device with a crank on the side geared to one or more beaters. The user grips the handle with one hand and operates the crank with the other, creating the rotary action. A mixer is a kitchen utensil which uses a"
"appliances stopped again and the company was constrained to produce containers for gas masks. In the aftermath of WW II., the company continued producing bread slicers and other gadgets for housekeeping and kitchen. In 1949, the Schneidboy (“slicing boy” with five circular blades for slicing mainly vegetables) was presented to the public for the first time – it was awarded the iF product design award and was sold more than 10 million times. The first electrical food slicer as well as the first built-in food slicer were introduced to the market in 1968 – both went into production still that"
"or 78 rpm, changing between the various settings automatically—BSR McDonald supplied turntables and autochangers to most of the world's record player manufacturers, eventually gaining 87% of the market. By 1977, BSR's various factories produced over 250,000 units a week. 1932: Leonard Parsons is the first to use synthetic vitamin C as treatment for scurvy in children. 1933: Credenda Conduit Co. Ltd of Birmingham patent a Credastat automatic oven thermostat, which is fitted to Creda electric cookers. This is an early advancement in electric cookers and a feature that eventually becomes standard on all electric cookers. An example of this cooker"
"the Ray Machine company of Baltimore, which still manufactures and sells the tool. As of 2010, Ray Machine was selling about 85,000 crumbers per year. A typical Table Crumber is approximately 6 inches in length, 1/2 inch in girth, curved, and made of metal, but a wide variety of designs exist. Crumber A crumber (also called a table crumber) is a tool designed to remove crumbs from a tablecloth, used especially in fine dining situations. The modern form of the crumber was invented in 1939 by John Henry Miller, owner of a restaurant on West Fayette Street in Baltimore. The"
"Persil Persil is a brand of laundry detergent manufactured and marketed by Henkel around the world except in the United Kingdom, Ireland, France, Latin America (except Mexico), China, Australia and New Zealand, where it is manufactured and marketed by Unilever. Persil was introduced in 1907 by Henkel. It was the first commercially available ""self-activated"" laundry detergent. The name was derived from two of its original ingredients, sodium perborate and sodium silicate. The chore of washing the laundry began to change with the introduction of washing powders in the 1880s. These new products originally were simply pulverized soap. New cleaning product"