Appeal No. 1999-2209 Page 8
Application No. 09/069,355
no disclosure of a test circuit and switch for an arc fault
circuit. Nor do we find any persuasive line of reasoning that
would have suggested to an artisan the desirability of a test
circuit and switch for an arc fault circuit. Since neither
reference teaches the use of an arc fault test circuit nor an
arc fault test switch, and no persuasive line of reasoning has
been presented, we find that the suggestion for these
limitations comes from appellants invention. In addition,
neither Morris nor Mackenzie teach the three position common
test actuator, as claimed. Although Mackenzie does disclose
the use of a single switch 71 for resetting both the ground
fault and arc fault detection indicators 51, 55, claim 1
requires that the common test actuator be a three position
switch. A first position is for actuating the ground fault
test switch. The second position is for actuating the arc
fault test switch. The third position is a neutral position
in which neither the arc fault test switch nor the ground
fault test switch is actuated. The reset switch 71 is not a
three position switch. The reset switch is only a two
position switch that is mechanically operated by circuit
breaker handle 73. Through the operation of caming surface
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 Next
Last modified: November 3, 2007