Appeal 2006-2269
Application 10/051,938
INTRODUCTION
The claims are directed to a shock absorber containing one or more
biodegradable esters as the dampening fluid (Specification 1, ll 3-4). Claims
38 and 46 are illustrative:
38. A shock absorber comprising a cylinder, the cylinder
defining a chamber therein and containing a fluid; a piston rod
sealingly projecting into the cylinder, the piston rod being axially
displaceable with respect to the cylinder; a piston attached to the
piston rod, the piston being slidably disposed within the cylinder to
sealingly divide the cylinder into a first chamber and a second
chamber; a passageway disposed in at least a portion of the piston
providing for fluid communication between the first and second
chambers; wherein the fluid comprises a biodegradable polyol ester,
said polyol ester having a polyol component and a carboxylic acid
component, the polyol component comprising a hindered polyol and
the carboxylic acid component comprising a mixture of two or more
C5, C6, C7, C8 and C9 linear monocarboxylic acids; and wherein said
fluid is at least 80% biodegradable.
46. The shock absorber according to claim 38, wherein said
carboxylic acid component further comprises a dicarboxylic acid.
The Examiner relies on the following prior art references as evidence
of unpatentability:
Funkhouser US 2,630,193 Mar. 3, 1953
Duncan US 5,681,800 Oct. 28, 1997
The rejections as presented by the Examiner are as follows:
1. Claims 46-48, 62-64 and 76 are rejected under 35 U.S.C. § 112, 1st
paragraph as containing subject matter which was not described in the
Specification in such a way as to reasonably convey to one skilled in
the relevant art that the inventor(s), at the time the application was
filed, had possession of the claimed invention.
2
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