1. A filling level sensor having a lever arm which has a float at one end and is held at its other end by a clip, a carrier composed of plastic, a bearing, arranged on the carrier, for the clip andor the lever arm, a filling level sensor which is arranged on the carrier and which is composed of a lid and a substrate, a resistance network which is arranged on this substrate and to which a contact structure is assigned, the electrical connection of the contact structure to the resistance network producing an electrical signal for the filling level as a function of the pivoted position of a lever arm, and having at least one permanent magnet which is arranged on the clip and has the purpose of activating the contact structure, characterized in that the clip (5) is composed of an electrically conductive plastic, in that an electrical contact (9, 12) which is connected to the clip (5) in an electrically conductive way is arranged on the clip (5) in such a way that as the lever arm (8) pivots on the substrate (4) said contact (9, 12) describes a circular path, in that the area on the substrate (4) over which the electrical contact (9, 12) passes is embodied as an electrically conductive contact face (10) and is electrically conductively connected to a connecting line (11) of the filling level sensor (3).
2. The filling level sensor as claimed in claim 1, characterized in that the radius of the circular path of the electrical contact (9) is smaller than the radius of the circular path of the permanent magnet (12).
3. The filling level sensor as claimed in claim 1, characterized in that the electrical contact is the permanent magnet (12).
4. The filling level sensor as claimed in claim 3, characterized in that at least parts of the surface of the permanent magnet (12) are metallic.
5. The filling level sensor as claimed in claim 1, characterized in that the conductive plastic is electrically conductive polyoxymethylene.
6. The filling level sensor as claimed in claim 5, characterized in that the electrically conductive polyoxymethylene contains graphite.
7. The filling level sensor as claimed in claim 2, characterized in that the electrically conductive polyoxymethylene contains metal powder.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable, wherein the aminopropylidene derivative is represented by the following general formula (I):
wherein R1 and R2, which may be identical or different, stand for a hydrogen or a substituent selected from the following (a) to (c) with proviso that a case where both are hydrogen is excluded:
(a) a carbonyl substituted with hydroxy, alkoxy, or hydroxyalkylamino,
(b) a carbonylalkyl substituted with hydroxy or alkoxy, and
(c) acrylic acid including an alkyl ester thereof,
R3 and R4, which may be identical or different, stand for hydrogen,
an alkyl which may be substituted with phenyl, or
a cycloalkyl, or
R3 and R4, which together form a heterocyclic ring with a nitrogen atom bonded thereto, stand for a pyrrolidino, a piperidino which may be substituted with oxo or piperidino, a piperadinyl substituted with alkyl or phenyl, a morpholino, or a thiomorpholino,
A stands for unsubstituted or an oxo, B stands for a carbon or an oxygen, one of X and Y stands for a carbon and the other stands for a sulfur, a broken line part stands for a single bond or a double bond, and a wavy line stands for cis-form andor trans-form.
2. The aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable according to claim 1, wherein A is unsubstituted.
3. The aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable according to claim 2, wherein B is an oxygen.
4. The aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable according to claim 3, wherein R2 is a hydrogen.
5. The aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable according to claim 4, wherein X is a carbon and Y is a sulfur.
6. The aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable according to claim 5, wherein R1 is a carbonylalkyl substituted with hydroxy.
7. The aminopropylidene derivative, or salt or hydrate thereof that is pharmaceutically acceptable according to claim 1, wherein the aminopropylidene derivative represented by the general formula (I) is a compound selected from (E)-{43-(pyrrolidin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzofazulen-6-yl}acetic acid, (Z)-{4-3-(pyrrolidin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-yl}acetic acid, (E)-4-(3-ethylmethylaminopropylidene)-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-ylacetic acid, (Z)-4-(3-ethylmethylaminopropylidene)-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-ylacetic acid, (E)-{4-3-(piperidin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-yl}acetic acid, (Z)-{4-3-(piperidin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-yl}acetic acid, (Z)-4-(3-benzylaminopropylidene)-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-ylacetic acid, (E)-{4-3-(4-methylpiperadin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-yl}acetic acid, (E)-{4-3-(pyrrolidin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-yl}acetic acid, and (Z)-{4-3-(pyrrolidin-1-yl)propylidene-4,10-dihydro-9-oxa-3-thiabenzo fazulen-6-yl}acetic acid.
8. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 1.
9. The pharmaceutical composition according to claim 8, which is an antihistamine.
10. A method of treating a patient in need of treatment with antihistamine action, comprising administering to said patient at least one member selected from the aminopropylidene derivatives, or salt or hydrate thereof that is pharmaceutically acceptable as defined in claim 1 in an effective dose.
11. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 2.
12. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 3.
13. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 4.
14. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 5.
15. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 6.
16. A pharmaceutical composition comprising at least one member of the aminopropylidene derivatives, and salt and hydrate thereof that are pharmaceutically acceptable as defined in claim 7.
17. The pharmaceutical composition according to claim 11, which is an antihistamine.
18. The pharmaceutical composition according to claim 12, which is an antihistamine.
19. The pharmaceutical composition according to claim 13, which is an antihistamine.
20. The pharmaceutical composition according to claim 14, which is an antihistamine.
21. The pharmaceutical composition according to claim 15, which is an antihistamine.
22. The pharmaceutical composition according to claim 16, which is an antihistamine.