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A column still, also called a continuous still, patent still or Coffey still, is a variety of still consisting of two columns. Column stills can produce rectified spirit (95% ABV ). Description
The result was more efficient, producing a lighter spirit at higher alcohol content. Coffey patented his design in 1830, and it became the basis for every column still used ever since. His column still became widely popular in Scotland and the rest of the world outside Ireland, where it is known as the "Coffey still" or "Patent Still".
In 1822, Anthony Perrier developed one of the first continuous stills, and then, in 1826, Robert Stein improved that design to make his patent still. In 1830, Aeneas Coffey got a patent for improving the design even further. [37] Coffey's continuous still may be regarded as the archetype of modern petrochemical units. The French engineer Armand ...
Pot stills at the Lagavulin Distillery. A pot still is a type of distillation apparatus or still used to distill liquors such as whisky or brandy.In modern (post-1850s) practice, they are not used to produce rectified spirit, because they do not separate congeners from ethanol as effectively as other distillation methods.
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Before the 19th century most distillation was performed from a simple pot still developed in 800 AD by the Arab alchemist Jabir ibn Hayyan. In the early 19th century the advent of steam heating and later the continuous "patent" still radically transformed the spirits industry. Smaller traditional producers developed marketing strategies to ...
Under United States patent law, a continuing patent application is a patent application that follows, and claims priority to, an earlier-filed patent application. A continuing patent application may be one of three types: a continuation, divisional , or continuation-in-part.
Google has just been hit with a $32.5 million penalty for infringing on a patent held by Sonos. According to Law360, a California federal jury ordered the fine after determining that Google ...