Appeal No. 96-2416
Application 08/206,447
pump, and a printhead 18. The accumulator includes a piston-like
member 34 that is biased by a spring 36 and a temperature
sensitive bimetal resilient member 40. Member 40 “functions to
vary the pressure to be applied to the ink liquid in a fashion
depending on the variation of the ambience temperature, thereby
maintaining the ink liquid flow constant without regard to the
temperature variation” (col. 3, lines 62-66).
Debare is directed to a pumping device “in particular for
supplying water to a caravan, a bungalow or any other premises”
(col. 1, lines 4-6). With reference to Figure 1, the device
includes a pump 1 driven by a motor 2 for pumping water from a
storage tank 4. Located downstream of the pump are a spring
biased check valve 6, diaphragm 7 operatively connected to the
motor by a contactor 8, and a cock 9. The pumping device of
Debare operates as follows. When the cock is opened, pressure in
the line 5 at the location of the diaphragm drops, with the
result that the contactor closes the electric circuit of the
motor, thereby starting the motor and pump to feed water to the
cock (col. 2, lines 27-30). When the cock is closed, water
pressure at the location of the diaphragm increases, causing the
check valve to close and the contactor to open the electric
4
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Last modified: November 3, 2007