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The ornamental design for a pitch change adapter for a helicopter main rotor system, as shown and described.
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FIG. 1 is a prospective view.
FIG. 2 is a front view.
FIG. 3 is a right side view.
FIG. 4 is a top view.
FIG. 5 is a left-side view.
FIG. 6 is a rear view; and,
FIG. 7 is a bottom view.
| Patent | Priority | Assignee | Title |
| D669012, | Dec 22 2011 | Pegasus Helicopter, Inc. | High efficiency hub for pressure jet helicopters |
| Patent | Priority | Assignee | Title |
| 240810, | |||
| D256909, | Mar 19 1979 | AERONAUTICAL ACCESSORIES, INC | Helicopter baggage compartment extension device |
| D419518, | Nov 22 1996 | Propeller shroud |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 15 2000 | SEHGAL, AJAY | BELL HELICOPTER TEXTRON INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 010812 | /0700 | |
| May 24 2000 | Bell Helicopter Textron, Inc. | (assignment on the face of the patent) | / | |||
| Apr 01 2001 | BELL HELLCOPTER MICHIGAN, INC | TEXTRON IPMP L P | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016283 | /0404 | |
| Apr 01 2001 | BELL HELICOPTER TEXTRON, INC | BELL HELICOPTER MICHIGAN, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 016283 | /0439 | |
| Jul 26 2001 | BELL HELICOPTER TEXTRON | NAVY, SECRETARY OF THE UNITED STATES OF AMERICA | CONFIRMATORY LICENSE SEE DOCUMENT FOR DETAILS | 012414 | /0261 |
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