Airplane propeller blade with slotted flap
Iwamoto February 22, 1
U.S. patent number D344,487 [Application Number 07/909,440] was granted by the patent office on 1994-02-22 for airplane propeller blade with slotted flap. This patent grant is currently assigned to The Ishida Foundation. Invention is credited to Futoshi Iwamoto.
| United States Patent | D344,487 |
| Iwamoto | February 22, 1994 |
Airplane propeller blade with slotted flap
Claims
The ornamental design for an airplane propeller blade with slotted flap, as shown and described.
| Inventors: | Iwamoto; Futoshi (Nagoya, JP) |
|---|---|
| Assignee: | The Ishida Foundation (Nagoya,
JP) |
| Appl. No.: | 07/909,440 |
| Filed: | July 7, 1992 |
| Current U.S. Class: | D12/214; D12/345 |
| Field of Search: | ;416/234 ;D12/214,345,327,328,329 |
References Cited [Referenced By]
U.S. Patent Documents
| D172121 | May 1954 | Apostolescu |
| D200986 | April 1965 | Wojciechowski |
| D252390 | July 1979 | Voisard |
| 1905891 | April 1933 | Blanchard |
| 3461966 | August 1969 | Biermann |
Attorney, Agent or Firm: Sughrue, Mion, Zinn, Macpeak & Seas
Description
FIG. 1 is a rear perspective view of an airplane propeller blade with slotted flap showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof; and,
FIG. 5 is a airplane propeller of four propeller blades with a slotted flap .
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