USPC 244/20
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USPC 244/20 was a patent classification for aeronautical machines in which the blades of paddle wheels are arranged differently as the wheel rotates, aka feathering.[1]
- USPC 244 Aero and astro
- USPC 244/19 Paddle wheel sustained: Aeronautical machines sustained by the downward thrust from rotating paddle wheels, which may also propel the craft
- USPC 244/20 Feathering: Aeronautical machines in which the arrangement of the blades of the paddle wheels varies as the paddle wheel rotates
- USPC 244/19 Paddle wheel sustained: Aeronautical machines sustained by the downward thrust from rotating paddle wheels, which may also propel the craft
References
- ↑ Description of sublass USPC 244/20 from US Patent and Trademark Office
This wiki has 22 patents in category "USPC 244/20". Other techtypes related to USPC 244/20: Feathering propeller
Patents in category USPC 244/20
- Patent US-1873-141785 (English title: Apparatus for navigating the air, Inventors: Thomas Green, Filing date: 1873-07-15)
- Patent US-1894-516265 (English title: Aerial Locomotive, Inventors: Christopher G. Cross, Filing date: 1892-10-03)
- Patent US-1909-944301 (English title: Flying Machine, Inventors: Aaron W. Harris Warshawsky, Filing date: 1905-04-18)
- Patent US-1906-844172 (English title: Aeronautical machine, Inventors: Alexander McCarthy, Filing date: 1906-03-17)
- Patent US-1908-940866 (English title: Flying-machine, Inventors: Albert Hugo Friedel, Filing date: 1808-05-19)
- Patent US-1910-974490 (English title: Blade-feathering mechanism for propellers, Inventors: Hugo Hückel, Filing date: 1908-02-21)
- Patent US-1909-934717 (English title: Flying-machine, Inventors: De Witt C Dorman, Filing date: 1908-12-21)
- Patent US-1908-951615 (English title: Flying-machine, Inventors: Leo Covington Kincannon, Filing date: 1908-12-30)
- Patent US-1911-991794 (English title: Flying-machine or airship, Inventors: Daniel P. McLaughlin, Filing date: 1909-06-30)
- Patent US-1909-1006074 (English title: Flying-machine, Inventors: Thomas H. E. Folger, Filing date: 1909-07-19)
- Patent US-1909-1010443 (English title: Flying-machine, Inventors: Simon Brubaker Minnich, Filing date: 1909-08-31)
- Patent US-1910-979472 (English title: Flying-machine, Inventors: Fred Goehner, Filing date: 1909-09-27)
- Patent US-1910-971379 (English title: Airship, Inventors: David Hillis, Filing date: 1909-12-20)
- Patent US-1909-991259 (English title: Aeroplane, Inventors: Edgar Murry Yates, Filing date: 1909-12-27)
- Patent US-1910-999560 (English title: Flying-machine, Inventors: Armin Helfer, Filing date: 1910-05-06)
- Patent US-1916-1208395 (English title: Flying-machine, Inventors: Ruter William Springer, Filing date: 1910-06-11)
- Patent US-1912-1039679 (English title: Flying machine, Inventors: Harry Hardgrave, Filing date: 1910-11-17)
- Patent US-1914-1115710 (English title: Aeroplane, Inventors: John Edward McWhorter, Filing date: 1911-06-26)
- Patent US-1912-1044375 (English title: Aerial machine, Inventors: John Peter Glover, Filing date: 1911-12-02)
- Patent US-1913-1073648 (English title: Autoplane, Inventors: Paul Witzel, Supplementary to patent: Patent CH-1913-63747, Filing date: 1913-05-01)
- Patent US-1914-1194037 (English title: Air propeller and the like, Inventors: Carl Kropp, Filing date: 1914-07-03)
- Patent US-1916-1172338 (English title: Flying-machine, Inventors: Bruno Beier, Filing date: 1914-09-12)
| Enclosing categories | USPC 244/19 |
|---|---|
| Subcategories | |
| Keywords | Feathering, Propeller, paddle wheel |
| Start year | |
| End year |
