1. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making first and second separate patterns of portions of the first part;
making a third pattern of the second part;
making a plurality of ceramic core pieces; and
mounting at least one of the core pieces on the first pattern to form a subassembly;
combining the subassembly with the third pattern so that the core pieces maintain a separation between the third pattern and the first pattern;
attaching the first and second patterns together to trap the third pattern and form a complete casting assembly.
2. The method of claim 1, wherein:
the third pattern is hollow; and
the subassembly is received by and inserted through the third pattern.
3. The method of claim 1, wherein:
the at least one of the core pieces is hollow and receives the first pattern;
the third pattern is hollow; and
the at least one of the core pieces and the first pattern are received by the third pattern.
4. The method of claim 1, wherein:
the patterns are formed out of wax and the assembly is used in an investment casting process.
5. (canceled)
6. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making a first pattern of the first part;
making a second pattern of a first portion of the second part;
making separate third pattern of another portion of the second part;
making at least one ceramic core pieces;
mounting the core piece on the first pattern to form a subassembly;
combining the subassembly with the second pattern so that the core pieces maintain a separation between the second pattern and the first pattern; and
bonding the third pattern to the second pattern and around the subassembly to trap the subassembly and form a complete casting assembly.
7. The method of claim 6, characterized by:
openings are formed between the second pattern and the third pattern, and the subassembly is received by said openings.
8. The method of claim 6, wherein:
the patterns are formed out of wax and the assembly is used in an investment casting process.
9. (canceled)
10. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making a first pattern of the first part;
making a second pattern of a first portion of the second part;
making separate third and fourth patterns of other portions of the second part;
making a pair of ceramic core pieces;
mounting the core pieces on the first pattern to form a subassembly;
combining the subassembly with the second pattern so that the core pieces maintain a separation between the second pattern and the first pattern; and
bonding the third and fourth patterns to the second pattern and around the subassembly to trap the subassembly and form a complete casting assembly.
11. The method of claim 10, characterized by:
openings are formed between the second pattern and the third and fourth patterns, and the subassembly is received by said openings.
12. The method of claim 10, wherein:
the patterns are formed out of wax and the assembly is used in an investment casting process.
13. (canceled)
14. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making a first pattern of the first part;
making a second pattern of a first portion of the second part;
making separate third pattern of another portion of the second part;
coating at least a portion of the first pattern with a ceramic coating;
combining the coated first pattern with the second pattern so that the ceramic coating maintains a separation between the second pattern and the first pattern; and
bonding the third pattern to the second pattern and around the subassembly to trap the subassembly and form a complete casting assembly.
15. The method of claim 14, characterized by:
an opening is formed between the second pattern and the third pattern, and the coated first pattern is received by said opening.
16. The method of claim 14, wherein:
the patterns are formed out of wax and the assembly is used in an investment casting process.
17. (canceled)
18. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making first and second separate patterns of portions of the first part;
making a third pattern of the second part;
making a plurality of ceramic core pieces;
mounting at least one of the core pieces on the first pattern to form a subassembly;
combining the subassembly with the third pattern so that the core pieces maintain a separation between the third pattern and the first pattern; and
attaching the first and second patterns together to trap the third pattern and form a complete casting assembly, and the patterns are formed out of foam and the assembly is used in a lost foam casting process.
19. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making a first pattern of the first part;
making a second pattern of a first portion of the second part;
making separate third pattern of another portion of the second part;
making at least one ceramic core pieces;
mounting the core piece on the first pattern to form a subassembly;
combining the subassembly with the second pattern so that the core pieces maintain a separation between the second pattern and the first pattern; and
bonding the third pattern to the second pattern and around the subassembly to trap the subassembly and form a complete casting assembly, and the patterns are formed out of foam and the assembly is used in a lost foam casting process.
20. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making a first pattern of the first part;
making a second pattern of a first portion of the second part;
making separate third and fourth patterns of other portions of the second part;
making a pair of ceramic core pieces;
mounting the core pieces on the first pattern to form a subassembly;
combining the subassembly with the second pattern so that the core pieces maintain a separation between the second pattern and the first pattern; and
bonding the third and fourth patterns to the second pattern and around the subassembly to trap the subassembly and form a complete casting assembly, and the patterns are formed out of foam and the assembly is used in a lost foam casting process.
21. A method of making a casting assembly for casting a first part movable with respect to a second part, comprising:
making a first pattern of the first part;
making a second pattern of a first portion of the second part;
making separate third pattern of another portion of the second part;
coating at least a portion of the first pattern with a ceramic coating;
combining the coated first pattern with the second pattern so that the ceramic coating maintain a separation between the second pattern and the first pattern; and
bonding the third pattern to the second pattern and around the subassembly to trap the subassembly and form a complete casting assembly, and the patterns are formed out of foam and the assembly is used in a lost foam casting process.
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 protective device for an electrical power distribution network, with the protective device having means for processing of measured values from measurement appliances for the power distribution network, means for initiating switching commands by primary appliances for the power distribution network, as well as a programmable protective function which, when it is carried out, determines the switching commands on the basis of the measured values,
wherein the protective device has programmable logic which can be programmed in order to carry out the protective function,
wherein the programmable logic is programmed in order to carry out a first protective function, and the protective device has means for programming the programmable logic in order to carry out a second protective function, and
wherein a license management means is provided for determining and managing a license status, which includes information for the protective device as to what protective function may be used or should be carried out in what time period,
wherein the license management means is a computer program for determining and managing the license status, which offers a user interface for modification of the license status,
wherein the user interface is accessible to a network operator via a communication network, and
wherein the selection of a specific protective function is linked to a payment of a license fee.
2. The protective device as claimed in claim 1, which has means for receiving a description of a protective function via a communication link and means for loading the description in the programmable logic.
3. The protective device as claimed in claim 2, with the means for receiving having an interface to a communication network based on the TCPIP protocol.
4. The protective device as claimed in claim 1, with the programmable logic being an FPGA (Field Programmable Gate Array) or a CPLD (Complex Programmable Logic Device).
5. The protective device as claimed in claim 4, wherein a description of the protective function is a VHDL (VHSIC Hardware Description Language) description or a bit stream description of a hardware design for carrying out the protective function on the programmable logic.
6. A substation for an electrical power distribution network having a protective device as claimed in claim 1.
7. The protective device as claimed in claim 1, wherein the means for programming is configured to reprogram the programmable logic to carry out the second protective function, the means for programming being configured to reprogram the protective device after its installation in the electrical power distribution network.
8. The protective device as claimed in claim 1, wherein the license status for the protective function allows the protective function to be used by transmission of a description of the protective function to the protective device andor by loading of the description in the programmable logic, only when the license management means receives confirmation of payment of the license fee.
9. The protective device as claimed in claim 1, wherein a description of the respective protective function is a description of a hardware design.
10. A protective device for an electrical power distribution network, with the protective device having means for processing of measured values from measurement appliances for the power distribution network, means for initiating switching commands by primary appliances for the power distribution network, as well as a programmable protective function which, when it is carried out, determines the switching commands on the basis of the measured values,
wherein the protective device has programmable logic which can be programmed in order to carry out the protective function,
wherein the programmable logic is programmed in order to carry out a first protective function, and the protective device has means for programming the programmable logic in order to carry out a second protective function, and
wherein a license management means is provided for determining and managing a license status, which includes information for the protective device as to what protective function may be used or should be carried out in what time period, and
wherein a basic protective function, which implements predetermined minimal protection, is stored in a function memory, and if a license for a loaded protective function has elapsed on the basis of the license status, the basic protective function is loaded automatically.
11. A method for installation of a protective function in a protective device for an electrical power distribution network, wherein the protective device has means for processing measured values from measurement appliances for the power distribution network, and means for initiating switching commands by primary appliances for the power distribution network, and the protective function, when it is carried out, determines the switching commands on the basis of the measured values,
wherein the method has the following steps:
transmission of a description of the protective function via a communication link to the protective device,
programming of programmable logic in the protective device on the basis of the description of the protective function, and
carrying out the protective function by means of the programmable logic only when a license management means receives confirmation of payment of a license fee,
wherein a basic protective function, which implements predetermined minimal protection, is stored in a function memory, and if a license for a loaded protective function has elapsed on the basis of the license status, the basic protective function is loaded automatically.
12. The method as claimed in claim 11, wherein the description of the protective function is a VHDL (VHSIC Hardware Description Language) description or a bit stream description of the hardware design for carrying out the protective function on the programmable logic.
13. The method as claimed in claim 11, wherein the description of the protective function is transmitted via a communication network using the TCPIP protocol.
14. The method as claimed in claim 11, wherein the programming of programmable logic is performed in the protective device while the protective device is installed in the electrical power distribution network.
15. The method as claimed in claim 11, wherein the description of the protective function is in the form of a description of a hardware design.
16. A protective device for an electrical power distribution network, comprising:
means for processing measured values from measurement appliances for the electrical power distribution network;
means for initiating switching commands by primary appliances for the power distribution network;
a protective function means which determines the switching commands on the basis of the measured values;
a license management means for determining and managing a licence status, which includes information for the protective device as to what protective function may be used or should be carried out in what time period; and
a function memory storing a basic protective function for implementing a predetermined minimal protection,
wherein the protective function means includes a programmable logic which can be programmed in order to carry out a protective function,
wherein the programmable logic is programmed in order to carry out a first protective function, and the protective device has means for programming the programmable logic in order to carry out a second protective function, and
wherein the protective device has means for automatically loading the basic protective function if a license for a loaded protective function has elapsed on the basis of the license status.