Appeal No. 2005-1843 Page 5
Application No. 09/585,222
Matousek's invention is directed to an improved ball valve of the type having the
ball encapsulated in a resilient, resinous seal. Figure 1 is a longitudinal cross-section
through a preferred embodiment of Matousek's invention. Figure 2 is a cross-sectional
view taken on line 2--2 of Figure 1. Figure 3 is an enlargement of the circled portion of
Figure 2. Figure 4 is an exploded pictorial view of the valve shown in Figure 1. Figures
1-4 illustrate a ball valve which includes a housing 10 defining an internal valve chamber
12 and inlet and outlet flow passageways 14 and 16. The internal valve chamber is
cylindrical and extends axially into the housing 10. The inlet and outlet flow passages
14 and 16 are also cylindrical and intersect valve chamber 12 at right angles. Matousek
teaches (column 2, lines 59-64) that:
the valve housing 10 is a one-piece body generally referred to as a "bar stock".
That is, it is machined from a single piece of material such as brass, stainless
steel or the like. Obviously, the housing could be of many types such as the
standard cast and/or multi-piece housings.
The finished shape of housing 10 is best depicted in the exploded pictorial view of
Figure 4 as follows:
.
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Last modified: November 3, 2007