Apparel – Guard or protector – For wearer's head
Reexamination Certificate
2007-03-07
2008-09-09
Worrell, Danny (Department: 3765)
Apparel
Guard or protector
For wearer's head
C002S424000
Reexamination Certificate
active
07421744
ABSTRACT:
A helmet having an outer shell formed to substantially enclose the head of a wearer and an inner liner disposed within the outer shell and conforming in shape substantially to the outer shell. An aperture is disposed at a front portion of the inner liner. A first exit port is disposed at a first rear portion of the outer shell, with the first exit port being substantially larger than the aperture. A first acoustic chamber is disposed between the inner liner and the outer shell and extends in a curved fashion from the aperture to the first exit port along a first side of the helmet. As a result, a wearer of the helmet is able to speak into the aperture of the helmet and have his voice carried through the first acoustic chamber and exit via the exit port to be heard by a person behind the wearer. Optionally, a second acoustic chamber is similarly disposed on the opposite side of the first acoustic chamber.
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Barkume Anthony R.
Worrell Danny
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