USD180454S - Powerplant transmission rotor unit for a helicopter - Google Patents
Powerplant transmission rotor unit for a helicopter Download PDFInfo
- Publication number
- USD180454S USD180454S US D180454 S USD180454 S US D180454S
- Authority
- US
- United States
- Prior art keywords
- powerplant
- helicopter
- rotor unit
- transmission rotor
- view
- Prior art date
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- 230000005540 biological transmission Effects 0.000 title description 4
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Description
Uniwd SW8 Pam Oflfiw '32:; 2912:
POWERPLANT TRANSMISSION ROTOR UNIT FOR A HELICOPTER Peter J. Papadakos, St. James, N. Y., assignor to Gyrodyne Company of America, Inc., Flowerfield, N. Y., a corporation of New York Application January 19, 1955, Serial No. 34,074
Term of patent 14 years Fig. l is a perspective view of a powerplant transmission rotor unit for a helicopter, showing my new design.
Fig. 2 is a perspective view of the same taken at an angle of approximately 45 to the view shown in Fig. 1.
Fig. 3 is a plan View of the same, containing the rotors, the opposite rotors being broken away.
Fig. 4 is a top plan view of the same, with the rotor blades omitted for convenience of illustration only.
Des. 180,454
PAGE 2 I claim: The ornamental design for a powerplant transmission rotor unit for a helicopter, as shown.
References Cited in the file of this patent UNITED STATES PATENTS D. 96,986 Jewell Sept. 24, 1935 D. 168,652 Papadakos Jan. 20, 1953 1,050,980 Mott Jan. 21, 1913 1,291,126 Porter Jan. 14, 1919
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