Theophilus Van Kannel was a citizen of the United States living in Philadelphia, Pennsylvania, who patented a storm-door structure in 1888. His patent states that the aim was a storm door more acceptable than the usual swinging door. The fixed part consists of a base, a ceiling plate and curved side plates, and a central post pivoted to the top and base carries a door with three wings radiating at equal angles from the post.
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Theophilus Van Kannel
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Source US Patent 387571, Storm-door structure (Theophilus Van Kannel)
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Source Revolving door (Wikipedia)
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Source US Patent 387571, Storm-door structure (Theophilus Van Kannel)SpecificationQuote, Specification
a citizen of the United States
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1. Theophilus Van Kannel (Wikipedia)
Lead sentence
Theophilus Van Kannel (July 1851, December 24, 1919) was an American inventor
In Group: Building Services Inventors, Article text
Theophilus Van Kannel (July 1851, December 24, 1919) was an American inventor, known for inventing the revolving door, patented on August 7, 1888.
View the SourceUS Patent 387571, Storm-door structure (Theophilus Van Kannel)
SpecificationQuote, Specification
The object of my invention is to construct a storm-door structure of a more acceptable character
Revolving door (Wikipedia)
Invented: Revolving Door, History sectionQuote, Invented: Revolving Door, History section
Theophilus Van Kannel of Philadelphia was granted US patent 387,571 on 7 August 1888, for a "Storm-Door Structure".
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