Appeal No. 95-3140
Application No. 08/058,453
1. A method for analyzing concrete, comprising:
transmitting a first microwave signal having a first
frequency that is directed to concrete being tested having
unknown water and cement proportions;
receiving a reflected microwave signal resulting from at
least portions of said transmitted microwave signal being
reflected by the concrete;
providing a first value related to a reflection
coefficient for a concrete sample having known water and
cement proportions;
obtaining a second value related to a reflection
coefficient based upon at least said reflected microwave
signal from the concrete being tested;
determining a difference magnitude related to a
difference between said first value and said second value;
having analysis information related to correlating said
difference magnitude and one of a plurality of strength
related values for the concrete being tested; and
determining a strength related value for the concrete
being tested using said difference magnitude and said analysis
information.
The reference relied upon by the examiner as evidence of
obviousness is:
Rzepecka et al. (Rzepecka), "Monitoring of Concrete Curing
Process by Microwave Terminal Measurements," IEEE Transactions
on Industrial Electronics and Control Instrumentation, Vol.
IECI-19, No. 4, pp. 120-125 (November 1972).
Appealed claims 1 and 8 stand rejected under 35 U.S.C. §
103 as being unpatentable over Rzepecka.
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