Appeal No. 2003-1836 Page 2
Application No.10/085,590
compress entrapped refrigerant. Modern compressors are typically enclosed in a
sealed housing and driven by a motor. (Spec. at 1.)
The appellants explain that conventional compressors include multiple protection
devices, each actuated under certain conditions. (Appeal Br. at 3.) Aiming to eliminate
the separate protection devices, (id.), the appellants mount a microprocessor ("µP") on
a sealed scroll compressor. During operation of the compressor, the µP analyzes a
number of system variables for faults. If it identifies a fault, the µP actuates a warning
signal. (Id. at 2.) Data representing the fault are stored for later analysis. (Spec.
at 14.)
A further understanding of the invention can be achieved by reading the following
claim.
20. A method of monitoring operation of a compressor comprising
the steps of:
(1) providing a scroll compressor mounted within a compressor
housing, also providing a microprocessor control for controlling said
compressor mounted on said scroll compressor housing, and providing
sensors on said compressor to supply data to said control with regard to
operation of said scroll compressor at both suction and discharge areas;
(2) operating said compressor, and sending data to said control;
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