1. A switch apparatus of an electrical circuit breaker for interrupting a current flow of an electric current in an electrical circuit in an event of an occurrence of a tripping event, the switch apparatus comprising:
two contact levers, arranged rotatably about a common rotation axis and arranged, at least sectionally, parallel to one another and spaced apart from one another, the two contact levers each including two contact lever arms comprising contact sections each for respectively making contact with one respective fixed mating contact section of a power line element, wherein the two first contact lever arms, which extend on a first side of the rotation axis, make contact with a first force transfer element, and the two second contact lever arms, which extend on a second side of the rotation axis, make contact with a second force transfer element for applying a spring force to the contact lever arms, and wherein at least one force transfer element of the two force transfer elements has, in touching sections for touching the contact lever arms, a bulge, which extends radially outwards, for the uniform transfer of the spring force onto the contact lever arms.
2. The switch apparatus of claim 1, wherein the force transfer element is arranged tiltably via its bulge relative to the power line elements.
3. The switch apparatus of claim 1, wherein the bulge includes a spherical configuration, an elliptical configuration, a pyramidal configuration, a conical configuration, a cubical configuration, a prismatic configuration or a cylindrical configuration.
4. The switch apparatus of claim 1, wherein the spring force is applied to the respective force transfer elements by at least two spring elements, wherein the spring elements each extend between the respective force transfer element and a holding element for holding the spring elements.
5. The switch apparatus of claim 4, wherein the holding element is arranged movably relative to the power line elements by way of an articulated bearing.
6. The switch apparatus of claim 1, wherein the touching sections of the force transfer elements each include at least one touching point for touching the contact lever arms, and wherein the touching points generate an identical lever arm independently of the positioning of at least one of the force transfer elements and the contact lever arms relative to the power line elements on each contact lever arm.
7. A switch apparatus of an electrical circuit breaker for interrupting a current flow of an electric current in an electrical circuit in an event of an occurrence of a tripping event, the switch apparatus comprising:
two contact levers, arranged rotatably about a common rotation axis arranged, at least sectionally, parallel to one another and spaced apart from one another, the two contact levers each including two contact lever arms comprising contact sections for respectively making contact with one respective fixed mating contact section of a power line element,
wherein a first holding element for holding at least one spring element for applying a spring force to the first contact lever arms, which extend on a first side of the rotation axis, and a second holding element for holding at least one spring element for applying a spring force to the second contact lever arms, which extend on a second side of the rotation axis, are arranged, and wherein at least one holding element of the two holding elements is configured so as to be movable relative to the power line elements by way of an articulated bearing.
8. The switch apparatus of claim 7, wherein the articulated bearing comprises a revolute joint, to enable a pivoting movement of the holding element at least about a pivot axis, which extends substantially orthogonal or at a defined angle to the rotation axis.
9. The switch apparatus of claim 7, wherein a spring force is applied to the respective holding elements by at least two respective spring elements, and wherein the spring elements each extend between the respective holding element and a force transfer element for transferring a spring force onto the contact lever arms.
10. The switch apparatus of claim 7, wherein the switch apparatus includes at least one force transfer element.
11. The switch apparatus of claim 1, wherein the at least one force transfer element extends along a longitudinal axis, which extends substantially parallel to or at an acute angle or at an obtuse angle to a rotation axis of the contact lever arms, and wherein the force transfer element extends along a first surface of the contact lever arms, and the holding element extends along a second surface, opposite the first surface, of the contact lever arms.
12. An electrical circuit breaker for interrupting a current flow of an electric current in an electrical circuit, comprising:
at least one switch apparatus as claimed in claim 1.
13. The switch apparatus of claim 2, wherein the bulge includes a spherical configuration, an elliptical configuration, a pyramidal configuration, a conical configuration, a cubical configuration, a prismatic configuration or a cylindrical configuration.
14. The switch apparatus of claim 2, wherein the spring force is applied to the respective force transfer elements by at least two spring elements, wherein the spring elements each extend between the respective force transfer element and a holding element for holding the spring elements.
15. The switch apparatus of claim 14, wherein the holding element is arranged movably relative to the power line elements by way of an articulated bearing.
16. An electrical circuit breaker for interrupting a current flow of an electric current in an electrical circuit, comprising:
at least one switch apparatus as claimed in claim 7.
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. A resist composition comprising a polymer comprising recurring units of the following general formula (1) and having a weight average molecular weight of 1,000 to 500,000,
18
wherein R1 and R2 are each independently hydrogen, hydroxy, a straight or branched alkyl group, halogen atom or trifluoromethyl group, R3 is methyl or ethyl, R4 and R5 each are an alkyl group having 1 to 7 carbon atoms, or R4 and R5 may bond together to form a cyclic structure.
2. A resist composition comprising a polymer comprising recurring units of the following general formula (2) and having a weight average molecular weight of 1,000 to 500,000,
19
wherein R2 is hydrogen, hydroxy, a straight or branched alkyl group, halogen atom or trifluoromethyl group.
3. A resist composition comprising a polymer comprising recurring units of the following general formula (1) and recurring units of the following general formula (3) and having a weight average molecular weight of 1,000 to 500,000,
20
wherein R1 and R2 are each independently hydrogen, hydroxy, a straight or branched alkyl group, halogen atom or trifluoromethyl group, R3 is methyl or ethyl, R4 and R5 each are an alkyl group having 1 to 7 carbon atoms, or R4 and R5 may bond together to form a cyclic structure, t is a positive number,
21
wherein R6, R7, R9, R10 and R11 are each independently hydrogen, hydroxy, a straight or branched alkyl group, halogen atom or trifluoromethyl group, R8 is an alkyl group having 1 to 10 carbon atoms, R12 is an alkyl group having 4 to 30 carbon atoms or silicon-substituted alkyl group, q, r and s are 0 or positive numbers, and p is a positive number.
4. A resist composition comprising a polymer comprising recurring units of the following general formula (2) and recurring units of the following general formula (3) and having a weight average molecular weight of 1,000 to 500,000,
22
wherein R2 is hydrogen, hydroxy, a straight or branched alkyl group, halogen atom or trifluoromethyl group, and t is a positive number,
23
wherein R6, R7, R9, R10 and R11 are each independently hydrogen, hydroxy, a straight or branched alkyl group, halogen atom or trifluoromethyl group, R8 is an alkyl group having 1 to 10 carbon atoms, R12 is an alkyl group having 4 to 30 carbon atoms or silicon-substituted alkyl group, q, r and s are 0 or positive numbers, and p is a positive number.
5. A chemically amplified positive resist composition comprising
(A) an organic solvent,
(B) the polymer of claim 1 as a base resin, and
(C) a photoacid generator.
6. A chemically amplified positive resist composition comprising
(A) an organic solvent,
(B) the polymer of claim 1 as a base resin,
(C) a photoacid generator, and
(D) a dissolution inhibitor.
7. The chemically amplified positive resist composition of claim 5, further comprising (E) a basic compound.
8. A process for forming a resist pattern comprising the steps of:
applying the resist composition of claim 1 onto a substrate to form a coating,
heat treating the coating and then exposing it to high-energy radiation or electron beam through a photo mask, and
optionally heat treating the exposed coating and developing it with a developer.