Patent of the Day: Apparatus for Raising or Lowering Ships' Boats
On this day in 1902 Axel Welin was granted the patent for APPARATUS FOR RAISING OR LOWERING SHIP'S BOATS. U.S. Patent No. 711,749. This invention relates to davits which are so constructed that the…
Patent of the Day: Apparatus for Purifying Crude Oils
On this day in 1959 Jim Bailey was granted the patent for APPARATUS FOR PURIFYING CRUDE OILS. U.S. Patent No. 2,909,262. This invention relates to a device for treating petroleum, and it particularly…
Patent of the Day: Glass Slipper
On this day in 1886 Henry J. Smith was granted the patent for GLASS SLIPPER. U.S. Patent No. 351,216. This invention relates to the manufacture of ornamental glass slippers, and the purpose thereof…
Patent of the Day: Shuttlecock
On this day in 1949 Atwood M. Timpé was granted the patent for SHUTTLECOCK. U.S. Patent No. 2,485,420. This invention relates to a shuttlecock generally termed a bird and used in the games of…
Patent of the Day: Air Purifier
On this day in 1939 George Bernhardt Gelakoski was granted the patent for AIR PURIFIER. U.S. Patent No. 2,176,174. An important object of the invention is to provide a device of this character having…
Patent of the Day: Photographic Film
On this day in 1884 George Eastman was granted the patent for PHOTOGRAPHIC FILM. U.S. Patent No. 306,594. This invention relates to an improvement in photographic films having for their object the…
Patent of the Day: Gun Carriage Attachment for Vehicle Dash Panels
On this day in 1953 John W. Riley was granted the patent for GUN CARRIAGE ATTACHMENT FOR VEHICLE DASH PANEL. U.S. Patent No. 2,655,298. This invention relates to new and useful improvements in gun…
Patent of the Day: Hydroaeroplane
On this day in 1915 Robert C. Edwards was granted the patent for HYDROAEROPLANE. U.S. Patent No. 1,156,218. This invention relates to new and useful improvements in flying boats or hydroaeroplanes…
Patent of the Day: Vaporizing Burner for Hydrocarbon Fuels
On this day in 1921 Meinhard H. Kotzebue was granted the patent for VAPORIZING BURNER FOR HYDROCARBON FUELS. U.S. Patent No. 1,393,547. The object of the invention is to provide a simple,…
Patent of the Day: Color Difference Measuring Instrument
On this day in 1961 Richard S. Hunter and Clyde A. Lofland were granted the patent for COLOR DIFFERENCE MEASURING INSTRUMENT. U.S. Patent No. 3,003,388. It is a primary object of the invention to…
Patent of the Day: Steeping Tank for Breweries
On this day in 1890 Jacob F. Theurer was granted the patent for STEEPING TANK FOR BREWERIES. U.S. Patent No. 437,910. This invention relates to tanks for steeping hops. In a steeping-tank for…
Patent of the Day: Electrophotography
On this day in 1942 Chester F. Carlson was granted to the patent for ELECTROPHOTOGRAPHY. U.S. Patent No. 2,297,691. An object of the invention is to improve methods of photography and to provide…