Patent of the Day: Truck Concrete Mixer
On this day in 1932 Gebhard Jaeger was granted the patent for Truck Concrete Mixer. U.S. Patent No. 1,867,838. One object of the invention is more especially to provide an improved and simplified…
Patent of the Day: Drafting Table
On this day in 1905 George Ring was granted the patent for Drafting Table. U.S. Patent No. 795,065. This invention provides a flat-topped table of any required size, and upon the table there is a…
Patent of the Day: Shampoo Cap
On this day in 1947 Dorothy Vincelle was granted the patent for Shampoo Cap. U.S. Patent No. 2,424,129. This invention relates to a massage cap for use in connection with the washing and massaging of…
Patent of the Day: Centrifugal Winnowing Apparatus
On this day in 1891 Olof Sundgren was granted the patent for Centrifugal Winnowing Apparatus. U.S. Patent No. 455,977. The separation of particles of different weights is effected by this apparatus…
Patent of the Day: Automatic Navigational Director
On this day in 1948 Robert E. Jasperson was granted the patent for Automatic Navigational Director. U.S. Patent No. 2,444,933. This invention relates to means for determining and indicating…
Patent of the Day: Aerodrome
On this day in 1911 James Travis was granted the patent for Aerodrome. U.S. Patent No. 997,521. One object of this invention is to provide elevating and sustaining wings of novel form mounted for…
Patent of the Day: Portable Hydraulic Press
On this day in 1851 Richard Dudgeon was granted the patent for Portable Hydraulic Press. U.S. Patent No. 8,203. This press is to the eye a simple cylinder of from three to five or more inches in…
Patent of the Day: Rocket Apparatus
On this day in 1914 Robert H. Goddard was granted the patent for Rocket Apparatus. U.S. Patent No. 1,102,653. This invention relates to a rocket apparatus and particularly to a form of such apparatus…
Patent of the Day: Potato Picker
On this day in 1926 John H. Herald was granted the patent for Potato Picker. U.S. Patent No. 1,591,824. The object of this invention is the provision of an apparatus for picking up potatoes after the…
Patent of the Day: Electric Shaver with Vibratory Shaving Units
On this day in 1952, the patent application for Electric Shaver with Vibratory Shaving Units was filed. U.S. Patent No. 2,675,614.
Patent of the Day: Window Air Conditioner
On this day in 1954 Allen Trask was granted the patent for Window Air Conditioner. U.S. Patent No. 2,682,159. A principal object of this invention is a cabinet constructed as a cantilever structure…
Patent of the Day: Portable X-Ray Apparatus
On this day in 1926 Wilhelm Falkenberg was granted the patent for Portable X-Ray Apparatus. U.S. Patent No. 1,590,929. The object of this invention is a portable electric medical hand apparatus, in…