Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
120 words
A method for electropolishing elongate metal mandrels in an electrolytic cell, which comprises the steps of: (a) placing an elongate cylindrical mandrel in an electrolytic cell between a pair of centering caps; said cell comprising an elongate annular cylindrical electrode having open ends in which said pair of centering caps are placed to center said mandrel within said cylindrical electrode, and an outlet and an inlet connected to a circulating source of electropolishing electrolyte; said mandrel and said cylindrical electrode connected to a source of electrical power; (b) applying said electrical power to said mandrel and said cylindrical electrode to establish an electrolytic cell; and (c) circulating said source of electropolishing electrolyte through said cylindrical electrode to electropolish said mandrel.
Claim 2
Independent Claim
120 words
A method for electropolishing elongate metal mandrels in an electrolytic cell, which comprises the steps of: (a) placing an elongate cylindrical mandrel in an electrolytic cell between a pair of centering caps; said cell comprising an elongate annular cylindrical electrode having open ends in which said pair of centering caps are placed to center said mandrel within said cylindrical electrode, and an outlet and an inlet connected to a circulating source of electropolishing electrolyte; said mandrel and said cylindrical electrode connected to a source of electrical power; (b) applying said electrical power to said mandrel and said cylindrical electrode to establish an electrolytic cell; and (c) circulating said source of electropolishing electrolyte through said cylindrical electrode to electropolish said mandrel.
Claim 3
Dependent Claim
32 words
The method of claim 1 wherein said mandrel is made from a material selected from tungsten, molybdenum, silicon, platinum, and alloys thereof; silicon carbide, boron nitride, aluminum nitride, carbon, or a glass.
Claim 4
Dependent Claim
12 words
The method of claim 2 wherein said mandrel is made from Mo.
Claim 5
Dependent Claim
15 words
The method of claim 1 wherein said cylindrical electrode is made from a stainless steel.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein said cylindrical electrode comprises the cathode.
Claim 7
Dependent Claim
17 words
The method of claim 1 wherein said electropolishing electrolyte comprises a solution of sulfuric acid in methanol.
Claim 8
Dependent Claim
16 words
The method of claim 1 wherein said source of electrical power comprises a d.c. power source.
Claim 9
Dependent Claim
16 words
The method of claim 1 wherein said mandrel is with 0.020 or 0.040 in in diameter.
Claim 10
Dependent Claim
20 words
The method of claim 7 wherein said mandrel is made from Mo and is 0.020 or 0.040 in in diameter.
Claim 11
Dependent Claim
40 words
The method of claim 9 wherein said electropolishing electrolyte comprises a solution of sulfuric acid in methanol; and said d.c. power source generates 10 amps for said 0.020 in diameter mandrel and 15 amps for said 0.040 in diameter mandrel.
Claim 12
Dependent Claim
133 words
An electrolytic cell for electropolishing elongate metal mandrels which comprises: (a) an elongate annular cylindrical electrode having open ends, and an outlet and an inlet; (b) a pair of centering caps which are placed in said open ends and which caps are adapted to receive an elongate cylindrical mandrel to center said mandrel within said cylindrical electrode; (c) a circulating source of electropolishing electrolyte which is in flow communication with said cylindrical electrode via its outlet and its inlet; and (d) a source of electrical power connected to said mandrel and connectable to said cylindrical electrode; whereby said mandrel is electropolished by applying electrical power to said mandrel and to said cylindrical electrode to establish an electrolytic cell, and circulating said source of electropolishing electrolyte through said cylindrical electrode to electropolish said mandrel.
Claim 13
Dependent Claim
133 words
An electrolytic cell for electropolishing elongate metal mandrels which comprises: (a) an elongate annular cylindrical electrode having open ends, and an outlet and an inlet; (b) a pair of centering caps which are placed in said open ends and which caps are adapted to receive an elongate cylindrical mandrel to center said mandrel within said cylindrical electrode; (c) a circulating source of electropolishing electrolyte which is in flow communication with said cylindrical electrode via its outlet and its inlet; and (d) a source of electrical power connected to said mandrel and connectable to said cylindrical electrode; whereby said mandrel is electropolished by applying electrical power to said mandrel and to said cylindrical electrode to establish an electrolytic cell, and circulating said source of electropolishing electrolyte through said cylindrical electrode to electropolish said mandrel.
Claim 14
Dependent Claim
33 words
The electrolytic cell of claim 11 wherein said mandrel is made from a material selected from tungsten, molybdenum, silicon, platinum, and alloys thereof; silicon carbide, boron nitride, aluminum nitride, carbon, or a glass.
Claim 15
Dependent Claim
13 words
The electrolytic cell of claim 12 wherein said mandrel is made from Mo.
Claim 16
Dependent Claim
16 words
The electrolytic cell of claim 11 wherein said cylindrical electrode is made from a stainless steel.
Claim 17
Dependent Claim
13 words
The electrolytic cell of claim 11 wherein said cylindrical electrode comprises the cathode.
Claim 18
Dependent Claim
17 words
The electrolytic cell of claim 11 wherein said source of electrical power comprises a d.c. power source.