Appeal 2007-0605
Application 10/231,771
1 FINDINGS OF FACT
2 1. Appellant invented an unloading/venting valve having integrated
3 therewith a high-pressure protection valve (Specification 1).
4 2. The invention provides a high-pressure protection relief valve for
5 an air compressor where the high pressure relief valve cannot fail
6 due to isolation from the air system. (Specification 4).
7 3. A governor monitors the air pressure in the system and generates a
8 signal when a first threshold pressure within the system is reached.
9 The valve body moves against a bias in response to the signal
10 generated by the governor, such that the discharge port is in
11 communication with a vent thereby allowing air to escape from the
12 system. (Specification 5).
13 4. In the case of failure of the governor resulting in the valve body
14 not being moved when the first threshold pressure is reached, the
15 valve body may be movable against the bias is response to a
16 second threshold pressure. (Id.).
17 5. Daubenberger is directed to a press molding apparatus. (col. 1,
18 l. 3).
19 6. To maintain a constant closing force on the material as the mold
20 parts on the plates are brought together by the press, it is necessary
21 that the rate of closing the press varies in accordance with the
22 resistance offered by the material. (col. 1, ll. 56-60).
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Last modified: September 9, 2013