Appeal No. 2000-1333 Application No. 08/691,988 in a regenerative heat exchanger. Claim 1 is illustrative and reads as follows:1 1. A heating sheet bundle adapted to be mounted tangentially or radially in trapezoidally segmented cells of a heating surface carrier of a regenerative heat exchanger with stationary or revolving storage masses, the heating sheet bundle comprising a plurality of profiled sheets mounted so as to be placed against each other and forming flow ducts therebetween, wherein at least two outer profiled sections on at least two oppositely located sides of the bundle are constructed as a pair of profiled sheets connected in a sandwich-like manner so as to be dimensionally stable, wherein one of the profiled sheets of the pair of profiled sheets is undulated and another of the profiled sheets of the pair of profiled sheets is corrugated, each sheet having a rolling depth, and wherein the rolling depth of the undulated sheet is greater than the rolling depth of the corrugated sheet. THE PRIOR ART The references relied upon by the examiner as evidence of 1Contrary to the statement on page 2 in the examiner’s answer (Paper No. 22), the copy of claim 1 in the appendix to the appellants’ brief (Paper No. 21) is not correct because it reflects the amendment filed October 13, 1998 (Paper No. 12) which has not been entered. The record shows that the examiner refused entry of the amendment when it was filed (see the advisory action dated November 4, 1998, Paper No. 14) and that the appellants did not direct that it be entered in their subsequently filed request for a continued prosecution application (Paper No. 15). 2Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 3, 2007