Appeal No. 95-1276 Application 07/839,969 references do not disclose tools which are utilized during drilling. In view of the foregoing, we will not sustain the examiner’s rejection of claim 80 as unpatentable under 35 U.S.C. § 103 based on the use of Lygas as a primary reference. As each of the independent method claims recite a step of receiving an acoustic signal at a location on the drill collar and each of the independent apparatus claims recite that the receiver is mounted on a drill collar, we also will not sustain the rejection of claims 21-79 and 81-87 based on the use of Lygas as a primary reference. We now turn to the rejection of the pending claims based on the use of Kent as the primary reference. Kent discloses a transducer for coupling an acoustic signal to a borehole drilling string during drilling. A sensor is mounted in the borehole in a sub-unit 38 which is adapted to generate an electrical measure of data relating to the operation of drill bit 40 such as fluid pressure or temperature (Col. 3, lines 7-10). The output from this sensor modulates an acoustic transmitter and the resultant acoustic wave is propagated toward the earth’s surface along the drill string 35 (Col. 3, lines 6-28) where it is received by a receiver mounted in a sub unit 32 at the earth’s 6Page: Previous 1 2 3 4 5 6 7 8 9 NextLast modified: November 3, 2007