Appeal 2007-2618
Application 10/713,178
light. Onodera, e.g., ¶¶ 0001-0003, 0005, 0006, 0017, 0018, and 0034, and
Figs. 1 and 2. Protective shield 17 has mounting base 19 to which assembly
1 is attached and has first and second protective members 21,23 that are
adjustable, are pushed against the workpiece, and are replaceable from a
plurality of different protective members in accordance with the shape of the
workpiece. Id., e.g., ¶¶ 0007-0010, 0018, 0019, 0026, 0029, and 0033, and
Figs. 1, 2, and 3A-C. Protective members 21,23 each have a sensor 31,33
for confirming whether the protective cover is in contact with the workpiece,
and the assembly will be operable only after it is confirmed that the
protective shield covers the workpiece and the front end of the assembly.
Id., e.g., ¶¶ 0011-0012, 0019-0023, and Figs. 1, 2, and 3A-C. Onodera
discloses an embodiment of protective shield 17 has protective member 39
that is cylindrical in shape, can be detachably attached to torch main unit 3
via springs 41, and has multiple contact sensors 43 for confirming contact
with the workpiece, wherein protective member 39 can be selected from
various shapes of such protective members. Id., e.g.,
¶¶ 0030-0033 and Figs. 4A-B and 5A-B. The protective covers are attached
to assembly 1 in a replaceable manner. Id., e.g., ¶ 0037.
We find Ungar would have disclosed to one of ordinary skill in this
art an electric hand tool for soldering wherein flange 3 coupled to and
surrounding the main body is a heat barrier to protect the hand of the user
who grips the tool back of the flange. Ungar, e.g., page 1, left col. ll. 46-54,
and Figs. 1, 5, and 6.
We find Messer Griesheim would have disclosed to one of ordinary
skill in this art a laser device for welding with means to protect humans from
reflected laser light wherein the laser device has a hood for this purpose.
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