Patent
   D646728
Priority
Apr 21 2010
Filed
Apr 21 2010
Issued
Oct 11 2011
Expiry
Oct 11 2025

TERM.DISCL.
Assg.orig
Entity
unknown
8
12
n/a
The ornamental design for a foldable rotor blade for toy helicopter, as shown and described.

FIG. 1 is a perspective view of foldable rotor blade for toy helicopter showing my new design.

FIG. 2 is a top view thereof.

FIG. 3 is a bottom view thereof. The broken line at the center portion of the blade is for illustrative purpose only and forms no parts of the claimed design.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view thereof.

FIG. 6 is a left view thereof.

FIG. 7 is a right view thereof.

FIG. 8 is a top view of the foldable rotor blade of the new design, illustrating the blades being pivotally folded at one direction.

FIG. 9 is a top view of the foldable rotor blade of the new design, illustrating the blades being pivotally folded at an opposite direction.

FIG. 10 is a perspective view of the new design thereof, illustrating the foldable rotor blade being mounted at the top helicopter, wherein the broken lines of the top helicopter shown in FIG. 10 no part of the claimed design; and,

FIG. 11 is a perspective view of the new design thereof, illustrating two of the foldable rotor blade being mounted at the top helicopter to form a double-blade system thereof, wherein the broken lines of the top helicopter shown in FIG. 11 no part of the claimed design.

It is understood that the broken lines in the drawing are for illustrative purposes only and forms no part of the claimed design.

Cheng, Randy

Patent Priority Assignee Title
D694837, Jan 15 2013 SPIN MASTER LTD. Flying toy
D706705, Dec 17 2011 WISK AERO LLC Rotor blade
D820917, Sep 28 2015 TRAXXAS LP Propeller for a model aircraft
D891351, Dec 15 2017 Bell Helicopter Textron Inc.; BELL HELICOPTER TEXTRON INC Rotor blade
D907559, Dec 15 2017 Bell Helicopter Textron Inc.; BELL HELICOPTER TEXTRON INC Leading edge fairing
D940044, Oct 18 2019 AUTEL ROBOTICS CO., LTD. Propeller
ER4185,
ER6808,
Patent Priority Assignee Title
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