Liquid-level transmitter with bell jar housing for gasoline tanks

Claim 2

In combination in a fuel tank a liquid-level transmitter comprising a pivotally supported lever which carries a float and is operatively connected to a contact of a wiper which is movable along an electrical resistor upon pivoting of the lever, the improvement comprising a housing formed as a bell-shaped structural part having an opening located at the bottom and being sealed off at all other portions thereof, the wiper and the electrical resistor being disposed in said bell-shaped structural part, and wherein all portions of said resistor are supported within said housing at a sufficient distance above said opening so as to inhibit wetting of the resistor by the liquid during a raising of the fuel liquid level in the fuel tank, and wherein said wiper is supported at a mounting on said housing, and extends from said mounting away from said opening for contacting said resistor.

Claim 3

The transmitter as set forth in claim 1, wherein said lever is mounted at a bearing on said bell-shaped structural part, said bell-shaped structural part extends to below said bearing of the lever.

Claim 4

The transmitter as set forth in claim 1, wherein said lever is formed with a pivot axle, said wiper comprises an arm made of plastic which extends from the pivot axle of the lever to the resistor, the wiper contact is fastened in a vicinity of a free end of said arm.

Claim 5

The transmitter as set forth in claim 3, further comprising two abutment stops formed in the shape of a yoke on both sides of the arm, the latter carrying the wiper contact.

Claim 6

The transmitter as set forth in claim 4, wherein said stops are displaceable relative to the wiper contact.

Claim 7

The transmitter as set forth in claim 3, wherein said lever and said arm form a one-piece unit made of plastic.

Claim 8

The transmitter as set forth in claim 4, wherein said lever, said stops and said arm form a one-piece unit made of plastic.

Claim 9

The transmitter as set forth in claim 4, wherein the bell-shaped structural part is provided with a pin which extends transversely to a plane defined by the electric resistor, said pin constitutes means for pivotally mounting said bell-shaped structural part to a tank.

Claim 10

The transmitter as set forth in claim 1, wherein the electric resistor is mounted displaceably within said bell-shaped structural part.

Claim 11

The transmitter as set forth in claim 1, wherein said liquid-level transmitter is mountable in said fuel tank of a vehicle for measuring the level of the fuel therein.

Claim 12

The transmitter as set forth in claim 4, wherein said bell-shaped structural part has two side walls, and said stops are so arranged with respect to said arm that upon pivoting of said lever in one direction one of said stops abuts against one of said side walls and upon pivoting of said lever in an opposite direction the other of said stops abuts against another of said side walls.

Claim 13

The transmitter as set forth in claim 4, wherein said two stops and said arm are made of one-piece.

Claim 14

The transmitter as set forth in claim 12, wherein said one-piece is made of plastic.

Claim 15

The transmitter as set forth in claim 2, wherein said lever is formed with a pivot axle, said bell-shaped structural part has spaced apart walls each defining an opening in which said pivot axle is pivotally mounted, and said bearing is constituted exclusively by said pivot axle and said opening.

Claim 16

The transmitter as set forth in claim 14, wherein said wiper and said electric resistor are arranged above said bearing.

Claim 17

In combination in a fuel tank a liquid-level transmitter comprising a pivotally supported lever which carries a float and is operatively connected to a contact of a wiper which is movable along an electrical resistor upon pivoting of the lever, the improvement comprising a housing formed as a bell-shaped structural part having an opening located at the bottom and being sealed off at all other portions thereof, the wiper and the electrical resistor being disposed in said bell-shaped structural part, and wherein all portions of said resistor are supported within said housing at a sufficient distance above said opening so as to inhibit wetting of the resistor by the liquid during a raising of the fuel liquid level in the fuel tank, and wherein said wiper is supported at a mounting on said housing, and extends from said mounting away from said opening for contacting said resistor, said lever is mounted at a bearing on said bell-shaped structural part, said bell-shaped structural part extends to below said bearing of the lever, said lever is formed with a pivot axle, said wiper comprises an arm made of plastic which extends from the pivot axle of the lever to the resistor, and the wiper contact is fastened in a vicinity of a free end of said arm.

Claim 18

In combination in a fuel tank a liquid-level transmitter comprising a pivotally supported lever which carries a float and is operatively connected to a contact of a wiper which is movable along an electrical resistor upon pivoting of the lever, the improvement comprising a housing formed as a bell-shaped structural part having an opening located at the bottom and being sealed off at all other portions thereof, the wiper and the electrical resistor being disposed in said bell-shaped structural part, and wherein all portions of said resistor are supported within said housing at a sufficient distance above said opening so as to inhibit wetting of the resistor by the liquid during a raising of the fuel liquid level in the fuel tank, and wherein said wiper is supported at a mounting on said housing, and extends from said mounting away from said opening for contacting said resistor, said lever is mounted at a bearing on said bell-shaped structural part, said bell-shaped structural part extends to below said bearing of the lever, said lever is formed with a pivot axle, said wiper comprises an arm made of plastic which extends from the pivot axle of the lever to the resistor, and the wiper contact is fastened in a vicinity of a free end of said arm.

Claim 19

The transmitter as set forth in claim 1, wherein said fuel tank is adapted to contain methanol and gasoline.

Claim 20

The transmitter as set forth in claim 16, wherein said fuel tank is adapted to contain methanol and gasoline.

Claim 21

The transmitter as set forth in claim 1, wherein said open is centrally free and spaced above the float and a bottom of the fuel tank.

Claim 22

The transmitter as set forth in claim 16, wherein said open is centrally free and spaced above the float and a bottom of the fuel tank.