Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
91 words
In a compressor having at least two areas of different pressures a reciprocable piston rod extending between and into each area, sealing means comprising a wall with a long bore therethrough with respect to the bore's diameter with said bore having an inside diameter only slightly larger than the diameter of the rod for surrounding the rod between said areas with a gas filled space between the rod and bore in the compressor so as to prevent substantial gas flow between the areas through the space between said rod and bore.
Claim 2
Dependent Claim
91 words
In a compressor having at least two areas of different pressures a reciprocable piston rod extending between and into each area, sealing means comprising a wall with a long bore therethrough with respect to the bore's diameter with said bore having an inside diameter only slightly larger than the diameter of the rod for surrounding the rod between said areas with a gas filled space between the rod and bore in the compressor so as to prevent substantial gas flow between the areas through the space between said rod and bore.
Claim 3
Dependent Claim
45 words
Sealing means as defined in claim 1 wherein said sealing means is in the form of a sleeve mountable in the compressor so as to provide a floating action thereof in the compressor and to maintain a spaced relationship with respect to the piston rod.
Claim 4
Dependent Claim
26 words
Sealing means as defined in claim 2 wherein the inner surface of said sleeve at least at each end thereof is of a good bearing material.
Claim 5
Dependent Claim
25 words
Sealing means as defined in claim 3 wherein said bearing material is in the form of a collar at least partially recessed into said sleeve.
Claim 6
Dependent Claim
46 words
Sealing means as defined in claim 2 wherein said sleeve includes at least one O-ring of resilient material located in at least one annular groove in the outer surface of said sleeve for closing the space between the sleeve and a surrounding portion of the compressor.
Claim 7
Dependent Claim
29 words
Sealing means as defined in claim 2 wherein said sleeve has coupling means intermediate its ends for swivelly connecting it to a wall of the compressor on two axes.
Claim 8
Dependent Claim
30 words
Sealing means as defined in claim 6 wherein said coupling means includes a mounting sleeve located around said sealing means and means for securing said mounting sleeve in the compressor.
Claim 9
Dependent Claim
20 words
Sealing means as defined in claim 1 wherein said bore is more than twice as long as its inside diameter.
Claim 10
Dependent Claim
25 words
Sealing means as defined in claim 1 wherein the inner surface of said bore has one or more grooves therein extending around the periphery thereof.
Claim 11
Dependent Claim
40 words
Sealing means as defined in claim 1 wherein said bore tapers in diameter from one end thereof to the other end and an annular piston rod bearing is located in a recess in the bore at the narrower end thereof.
Claim 12
Dependent Claim
35 words
Sealing means as defined in claim 1 wherein the bore increases in diameter from the center thereof to the ends thereof and there is a piston rod bearing fixed therein substantially at the center thereof.
Claim 13
Dependent Claim
30 words
Sealing means as defined in claim 1 wherein said bore has an annular piston rod bearing at each end thereof to serve as the sole guiding means for the rod.
Claim 14
Dependent Claim
48 words
A compressor as defined in claim 2 wherein said wall includes a sleeve floatingly mounted therein for transverse and tipping movement thereof but held against axial movement, and wherein the mounting means for said sleeve includes means for preventing gas from leaking between said chambers around said sleeve.
Claim 15
Dependent Claim
26 words
A compressor as defined in claim 13 wherein said sleeve is mounted in a second sleeve which is fixedly positioned in said wall between said areas.