The opinion in support of the decision being entered today was not
written for publication and is not binding precedent of the Board.
Paper No. 15
UNITED STATES PATENT AND TRADEMARK OFFICE
____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
____________
Ex parte IAN T. PETHERBRIDGE
____________
Appeal No. 2002-1423
Application No. 09/531,839
____________
ON BRIEF
____________
Before COHEN, PATE, and MCQUADE, Administrative Patent Judges.
PATE, Administrative Patent Judge.
DECISION ON APPEAL
This is an appeal from the final rejection of claims 1
through 11. These are the only claims in the application.
The claimed invention is directed to a respirator for
directing a forced flow of filtered air to a wearer. The air
flow passage of the respirator has a flow-detecting orifice which
generates suction to move a pressure-responsive indicator. If
air flow through the passage falls below a predetermined value,
the pressure responsive indicator signals an alert to the wearer.
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