Appeal No. 98-0584 Application 08/238,948 F.2d 1357, 1366, 178 USPQ 486, 492-93 (CCPA 1973). Moreover, while the claim language of claims 4, 17, 28 and 35 may appear, for the most part, to be understandable when read in abstract, no claim may be read apart from and independent of the supporting disclosure on which it is based. See In re Cohn, 438 F.2d 989, 993, 169 USPQ 95, 98 (CCPA 1971). Applying these principles to the present case, we fail to understand how magnetic field intensity detector (i.e., reed switches 136, 138) can be considered to "generate" an electrical proximity signal indicating "whether or not" the guard is within the predetermined relative proximity to the working surface for the reasons we have stated above in the rejection under the first paragraph of § 112. Thus, the lan- guage in these claim, when read in light of the specification, results in an inexplicable inconsistency that renders them indefinite. Claims 1, 6, 7, 32, 37 and 38 are rejected under 35 U.S.C. § 103 as being unpatentable over Hewitt in view of Lieber. Hewitt discloses a power tool safety device for a power tool 14Page: Previous 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 NextLast modified: November 3, 2007