Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
378 words
In a vehicle: an apparatus for indicating the level of at least two bodies of different liquids in said vehicle, a relatively flat housing mounted in said vehicle, and having a front and a rear, a chamber in said housing and having a display tube containing an indicator liquid and being arranged at the front of said housing, selecting means arranged at the rear of said housing, an air passage connected between said chamber and said selecting means, at least two air conduits connected between said selecting means and said at least two bodies of liquid, at least two dip tubes immersed respectively in said bodies of liquid and connected each to one of said air conduits, air displacing means arranged within said housing and operatively connected to said air passage, whereby upon operation of said air displacing means the volume portion of a selected one of said bodies of liquid present inside the selected dip tube is expelled therefrom by air pressurized inside the selected one of said air conduits, whereupon the pressure of said selected body of liquid is brought into communication with said chamber containing said indicator liquid so as to raise the level of said indicator liquid inside said display tube to a level corresponding to the level of said selected body of liquid, said selecting means comprising a switching member for individually connecting a selected one of said air conduits with said air passage, said switching member consisting of an arm pivotally supported at one of its ends, the other end carrying a grip protruding laterally from said housing, also comprising a series of notches adapted to receive said arm, each of said notches defining a switching position of said switching member, and a series of projections respectively separating said series of notches, and also comprising a spring arrangement biasing said switching member against a selected one of said notches for a positive guidance thereof, whereby upon said switching member approaching any one of said switching positions it is guided for a movement axially of said air passage, and whereby in the switching position of said switching member a sealed connection between said switching member and said air passage is established through the action of said spring bias and one of said notches.
Claim 2
Dependent Claim
378 words
In a vehicle: an apparatus for indicating the level of at least two bodies of different liquids in said vehicle, a relatively flat housing mounted in said vehicle, and having a front and a rear, a chamber in said housing and having a display tube containing an indicator liquid and being arranged at the front of said housing, selecting means arranged at the rear of said housing, an air passage connected between said chamber and said selecting means, at least two air conduits connected between said selecting means and said at least two bodies of liquid, at least two dip tubes immersed respectively in said bodies of liquid and connected each to one of said air conduits, air displacing means arranged within said housing and operatively connected to said air passage, whereby upon operation of said air displacing means the volume portion of a selected one of said bodies of liquid present inside the selected dip tube is expelled therefrom by air pressurized inside the selected one of said air conduits, whereupon the pressure of said selected body of liquid is brought into communication with said chamber containing said indicator liquid so as to raise the level of said indicator liquid inside said display tube to a level corresponding to the level of said selected body of liquid, said selecting means comprising a switching member for individually connecting a selected one of said air conduits with said air passage, said switching member consisting of an arm pivotally supported at one of its ends, the other end carrying a grip protruding laterally from said housing, also comprising a series of notches adapted to receive said arm, each of said notches defining a switching position of said switching member, and a series of projections respectively separating said series of notches, and also comprising a spring arrangement biasing said switching member against a selected one of said notches for a positive guidance thereof, whereby upon said switching member approaching any one of said switching positions it is guided for a movement axially of said air passage, and whereby in the switching position of said switching member a sealed connection between said switching member and said air passage is established through the action of said spring bias and one of said notches.