Ceramic resistor card assembly for fuel sensor
First Claim
Patent Images
1. A ceramic resistor card assembly for a fuel sensor comprising:
- a card portion made of a ceramic material;
a first conductive ink disposed on said card portion;
a second conductive ink disposed on said card portion; and
said first conductive ink being void of silver and said second conductive ink containing silver, wherein said first conductive ink is overlayed onto said second conductive ink to form a fuel level portion on which said at least one contact member of said wiper assembly slides thereon and said second conductive ink forms at least one contact pad for said fuel level portion.
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Abstract
A ceramic resistor card assembly for a fuel sensor includes a card portion made of a ceramic material. The ceramic resistor card assembly also includes a first conductive ink disposed on the card portion to form a fuel level portion. The ceramic resistor card assembly further includes a second conductive ink disposed on the card portion to form at least one contact for the fuel level portion. The first conductive ink is void of Silver and the second conductive ink contains Silver.
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Citations
19 Claims
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1. A ceramic resistor card assembly for a fuel sensor comprising:
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a card portion made of a ceramic material;
a first conductive ink disposed on said card portion;
a second conductive ink disposed on said card portion; and
said first conductive ink being void of silver and said second conductive ink containing silver, wherein said first conductive ink is overlayed onto said second conductive ink to form a fuel level portion on which said at least one contact member of said wiper assembly slides thereon and said second conductive ink forms at least one contact pad for said fuel level portion. - View Dependent Claims (2, 3, 6, 7, 8, 9)
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4. A ceramic resistor card assembly for a fuel sensor comprising:
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a card portion made of a ceramic material;
a first conductive ink disposed on said card portion to form a fuel level portion;
a second conductive ink disposed on said card portion to form at least one contact for the fuel level portion;
said first conductive ink being void of silver and said second conductive ink containing silver; and
wherein said first conductive ink has a particle size of approximately ten microns.
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5. A ceramic resistor card assembly for a fuel sensor comprising:
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a card portion made of a ceramic material;
a first conductive ink disposed on said card portion to form a fuel level portion;
a second conductive ink disposed on said card portion to form at least one contact for the fuel level portion;
said first conductive ink being void of silver and said second conductive ink containing silver;
wherein said first conductive ink is an alloy of gold, platinum, and palladium; and
wherein a ratio of said gold to palladium to platinum is approximately 56.4/6.3/10.4.
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10. A fuel sensor comprising:
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a ceramic resistor card assembly;
a wiper assembly for rotation relative to said ceramic resistor card assembly and having at least one contact member;
said ceramic resistor card assembly having a ceramic card portion, a first conductive ink disposed on said ceramic card portion, and a second conductive ink disposed on said card portion; and
said first conductive ink being void of silver and said second conductive ink containing silver, wherein said first conductive ink is overlayed onto said second conductive ink to form a fuel level portion on which said at least one contact member of said wiper assembly slides thereon and said second conductive ink forms at least one contact pad for said fuel level portion. - View Dependent Claims (11, 12, 15, 16, 17, 18)
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13. A fuel sensor comprising:
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a ceramic resistor card assembly;
a wiper assembly for rotation relative to said ceramic resistor card assembly;
said ceramic resistor card assembly having a ceramic card portion, a first conductive ink disposed on said ceramic card portion to form a fuel level portion, and a second conductive ink disposed on said card portion to form at least one contact for the fuel level portion;
said first conductive ink being void of silver and said second conductive ink containing silver; and
wherein said first conductive ink has a particle size of approximately ten microns.
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14. A fuel sensor comprising:
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a ceramic resistor card assembly;
a wiper assembly for rotation relative to said ceramic resistor card assembly;
said ceramic resistor card assembly having a ceramic card portion, a first conductive ink disposed on said ceramic card portion to form a fuel level portion, and a second conductive ink disposed on said card portion to form at least one contact for the fuel level portion;
said first conductive ink being void of silver and said second conductive ink containing silver;
wherein said first conductive ink is an alloy of gold, platinum, and palladium; and
wherein a ratio of said gold to palladium to platinum is approximately 56.4/6.3/10.4.
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19. A fuel sensor comprising:
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a sensor housing operatively connected to a fuel tank;
a ceramic resistor card assembly operatively connected to said sensor housing, said ceramic resistor card assembly having a ceramic card portion, a first conductive ink disposed on said ceramic card portion, an a second conductive ink disposed on said card portion;
a wiper assembly operatively connected to said sensor housing for rotation relative to said ceramic resistor card assembly and including a wiper with a plurality of contact members for contacting and sliding on said first conductive ink of said ceramic resistor card assembly as said wiper assembly rotates; and
wherein said first conductive ink is void of silver and said second conductive ink contains silver, wherein said first conductive ink is overlayed onto said second conductive ink to form an arcuate fuel level pathway and said second conductive ink forms at least one contact pad at the end of said fuel level portion.
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Specification