Appeal No. 1997-2036 Application No. 08/335,991 Webster's definition of "chamber," "an enclosed space or compartment." Further, the examiner asserts (Answer, page 4) that "neither the claims nor the specification recite a structure of channels or chambers which clearly differentiates the two elements," explaining that appellant's preferred dimensions do not distinguish between the two terms because appellant discloses that the dimensions may vary. Appellant's use of two separate terms in the claims, "channel" and "chamber," at the very least implies different types of elements. Also, the words "channel" and "chamber" differ in meaning. Channels must have an opening at the top and bottom, as they carry some form of fluid, whereas a chamber (as quoted by the examiner) is "an enclosed space or compartment" (emphasis added). (Chambers can have doors or openings, but channels cannot be completely enclosed.) Further, relative to chambers, channels have a higher length to width ratio. In addition, appellant indicates in the specification and drawings an intent for the terms to refer to different types of elements. Note, as pointed out by appellant (Brief, pages 6Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 NextLast modified: November 3, 2007