Appeal No. 2003-1836 Page 10
Application No.10/085,590
Input terminals of the subsystem are connected to "a pressure sensor 146 which
monitors the discharge pressure of compressor 10," col. 5, ll. 26-27, and "a pressure
sensord [sic] 148 which monitors the suction pressure of compressor 10." Id. at ll. 28-
29. A "[s]tatus display 94 is capable of displaying numbers and some alpha characters
to indicate the various fault codes associated with compressor protection and control
subsystem 86." Id. at ll. 6-9. "Once an undesirable characteristic is identified, the
operation of the scroll machine is stopped." Abs., ll. 12-14.
2. Mounting a Control the Compressor's Housing
The examiner finds that in Millet "compressor protection and control
subsystem 86 is mounted within electrical case 84, which case is mounted to shell 12
(compressor housing) (see col. 4, para. 4)." (Examiner's Answer at 5.) The appellants
ask, "[w]hy would one mount the Persem control 'on' the compressor housing?"
(Appeal Br. at 6.)
Although Persem uses a microprocessor-based small computer 56 as a
controller for its refrigeration compressor system, the reference does not address
physical mounting of the controller. We find that the omission of such a detail and the
recognition of modifications invites the use of known techniques for mounting a
Page: Previous 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 Next
Last modified: November 3, 2007