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EP0055312A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Resistance body of vertically set fuel gauge and support structure thereof

Assignee: Nippon Mektron KK
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Filing: 1980-12-30
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Granted: —
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Expires: 2000-12-30
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Abstract

Abstract There is provided an external casing vertically arranged in a fuel tank of vehicles or like, in order to detect a linear electric signal of change in the height of fuel surface in the fuel tank and a slender metallic resistance body (10) is set along the axial line of an external casing (3). The resistance body (10) has a resistance circuit pattern (10A, 16, 26) formed at least at one surface thereof through the interposition of an electric insulating layer (15, 24), the resistance circuit pattern (10A, 16, 26) having a shape corresponding to that of the fuel tank. The lower end of the resistance body (10) is caused to project from the bottom of the external casing (3) so that the resistance body can be arranged vertically while being pulled in the direction of bottom of the external casing by means of a metal fitting (12, 13) provided at the projecting portion of resistance body.

Inventors

  • 👤 Yasuyuki Tanaka

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-01 04:19
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/68

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 105 words
In a vertically set fuel'gauge having a contact member attached to a float movable up and down following a change in the height of fuel surface, said contact member in contact with a resistance body being adapted to take out a change in fuel surface as an electric signal of a change in resistance value, a resistance body of a vertically set fuel- gauge which comprises the base material of said resistance body being formed of a metal plate, at least one surface of said base material being subjected to an electric insulating treatment and a resistance circuit pattern being formed on said insulated surface.
Claim 2
Dependent Claim 105 words
In a vertically set fuel'gauge having a contact member attached to a float movable up and down following a change in the height of fuel surface, said contact member in contact with a resistance body being adapted to take out a change in fuel surface as an electric signal of a change in resistance value, a resistance body of a vertically set fuel- gauge which comprises the base material of said resistance body being formed of a metal plate, at least one surface of said base material being subjected to an electric insulating treatment and a resistance circuit pattern being formed on said insulated surface.
Claim 3
Dependent Claim 45 words
A resistance body of a vertically set fuel gauge, as claimed in claim 1, which comprises the base material of said resistance body being formed of an aluminum plate treated by anodic oxidation and its longitudinal lateral surfaces being covered with an electrically insulating coating.
Claim 4
Dependent Claim 24 words
A resistance body of a vertically set fuel gauge, as claimed in claim 2, which comprises a protection coating made of an electrically.insulating resin.
Claim 5
Dependent Claim 38 words
A resistance body of a vertically set fuel gauge, as claimed in claim 1, which comprises said resistance body being constituted in such a manner as one surface of said base material may serve as an earth circuit.
Claim 6
Dependent Claim 52 words
A resistance body of a vertically set fuel gauge, as claimed in claim 4, which comprises the base material of said resistance body being formed of a stainless steel plate and one surface of said base material being formed with an electrically insulating layer for installation of a resistance circuit pattern thereon.
Claim 7
Dependent Claim 45 words
A resistance body of a vertically set fuel gauge, as claimed in claim 5, which comprises said resistance body being constituted in such a manner as the other surface of said resistance body being finished like a mirror surface to serve as an earth circuit.
Claim 8
Dependent Claim 50 words
7, A resistance body of a vertically set fuel gauge, as claimed in claim 4, which comprises the base material of said resistance body being formed of an iron plate and one surface of said base material being formed.with an electrically insulating.layer for installation of a resistance circuit pattern thereon.
Claim 9
Dependent Claim 44 words
A resistance body of a vertically set fuel gauge, as claimed in claim 7, which comprises said resistance body being constituted in such a manner as.said base material is subjected to an anti-corrosive treatment and said treated surface may serve as an earth circuit.
Claim 10
Dependent Claim 140 words
In a vertically set fuel gauge having a contact member attached to a float movable up and down following a change in the height of fuel surface, said contact member in contact with a resistance body being adapted to take out a change in the height of fuel surface as an electric signal of a change in resistance value, a support structure for said resistance body, which comprises the base material of said resistance body being formed of a metal plate to be electrically insulated, the upper end of said resistance body being held at an upper lid of the fuel gauge, the lower - end thereof being caused to project outwardly from the bottom of an external casing for the fuel gauge and the lower end of said resistance body being fixed outwardly of said bottom of external casing.
Claim 11
Dependent Claim 140 words
In a vertically set fuel gauge having a contact member attached to a float movable up and down following a change in the height of fuel surface, said contact member in contact with a resistance body being adapted to take out a change in the height of fuel surface as an electric signal of a change in resistance value, a support structure for said resistance body, which comprises the base material of said resistance body being formed of a metal plate to be electrically insulated, the upper end of said resistance body being held at an upper lid of the fuel gauge, the lower - end thereof being caused to project outwardly from the bottom of an external casing for the fuel gauge and the lower end of said resistance body being fixed outwardly of said bottom of external casing.
Claim 12
Dependent Claim 86 words
A support structure for a resistance body, as claimed in claim 9, which comprises a rectangular hole being formed in the lower end of said resistance body projecting from said bottom of external casing, a plate spring inserted in said rectangular hole and having both ends in contact with the exterior of said bottom of external casing so that said resistance body can be fixed by means of said plate spring while vertically pulling said resistance body in the direction of said bottom of external casing.
Claim 13
Dependent Claim 64 words
A support structure for a resistance body, as claimed in claim 9, which comprises a round hole being formed in the lower end of said resistance body projecting from said bottom of external casing and a pin being inserted in said round hole so that said resistance body can be set while being pulled vertically in the direction of said bottom of external casing.
Claim 14
Dependent Claim 24 words
A support structure for a resistance body, as claimed in claim 11, which comprises said pin being a divisible pin either resilient or non-resilient.

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