Author: claimsbot

1. A spark plug comprising:
an insulator having a through hole in an axial direction of said spark plug and comprising alumina ceramics;
a center electrode partially inserted in a front end of the through hole;
an external terminal partially inserted in a rear end of the through hole; and
a conductive seal provided between said external terminal and said center electrode in said through hole,
wherein said conductive seal contains base glass, a conductive filler and from 0 to 10 weight % of an insulating filler,
said base glass contains:
a Si component in an amount of from 55 to 65 weight %, in terms of SiO2, a B component in an amount of from 22 to 35 weight %, in terms of B2O3, a Ca component in an amount of from 0.2 to 2 weight %, in terms of CaO, an Al component in an amount of 2 weight % or less, in terms of Al2O3, and a Na component and a K component in a total amount of from 4 to 8 weight %, in terms of Na2O and K2O, respectively, and
said base glass contains both said Na component and said K component.
2. The spark plug as claimed in claim 1, wherein a weight of said Na component contained in said base glass, in terms of Na2O, is no less than a weight of said K component contained in said base glass, in terms of K2O.
3. The spark plug as claimed in claim 1, wherein said conductive seal does not contain an insulating filler.
4. The spark plug as claimed in claim 1, wherein a total of a weight of said Si component, in terms of SiO2, and a weight of said B component, in terms of B2O3, is from 86 to 94 weight %, based on a weight of said base glass.
5. A spark plug comprising:
an insulator having a through hole in an axial direction of said spark plug;
a first conductive seal provided in said through hole;
a second conductive seal provided in said through hole;
a center electrode partially inserted in a front end of said through hole and bonded to said first conductive seal;
an external terminal partially inserted in a rear end of said through hole and bonded to said second conductive seal; and
a resistor provided between said first conductive seal and said second conductive seal,
wherein said second conductive seal contains base glass, a conductive filler, and 10 weight % or less, but more than 0 weight % of an insulating filler, and
said first conductive seal contains base glass, a conductive filler, and an insulating filler in an amount (including 0 weight %) smaller than that of said insulating filler contained in said second conductive seal.
6. The spark plug as claimed in claim 5, wherein said first conductive seal does not contain an insulating filler.
7. The spark plug as claimed in claim 5,
wherein said insulator comprises alumina ceramics,
the base glasses of said first and second conductive seal each independently contains:
a Si component in an amount of from 55 to 65 weight %, in terms of SiO2;
a B component in an amount of from 22 to 35 weight %, in terms of B2O3;
a Ca component in an amount of from 0.2 to 2 weight %, in terms of CaO;
an Al component in an amount of 2 weight % or less, in terms of Al2O3; and
a Na component and a K component in a total amount of from 4 to 8 weight %, in terms of Na2O and K2O, respectively, and
said base glasses each independently contains both said Na component and said K component.
8. The spark plug as claimed in claim 7, wherein in both of said first and second conductive seals, a weight of said Na component contained in said base glass, in terms of Na2O, is no less than a weight of said K component contained in said base glass, in terms of K2O.
9. The spark plug as claimed in claim 7, wherein in both of said first and second conductive seals, a total weight of said Si component, in terms of SiO2, and said B component, in terms of B2O3, is from 86 to 94 weight %, based on a weight of said base glass.
10. The spark plug as claimed in claim 1, wherein the relationship W1\u2267W2\u2267W15 is satisfied, wherein the weight of the Na component in the base glass, as converted to Na2O, is given by W1 and the weight of the K component, as converted to K2O, is given by W2.

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 method of forwarding diagnostic messages among members of groups in a data processing system while the members are executing protocols, comprising the steps of:
attaching a header to the message, the header including the following header fields:
(1) a protocol handle identifying the originator protocol from which the request originated; and
(2) a forwarding handle of null value identifying, if present, an original protocol which is the current parent of the protocol;

sending the diagnostic message to the member of the group identified by the forwarding handle which originated the protocol.
2. The method of claim 1, further including the step of:
including in header to the message an identifier of the member and group which originated the message.
3. The method of claim 1, further including the step of:
including in the header to the message an identifier of the member and group of the parent protocol originator, if any, which originated the message.
4. A computer system including a plurality of groups, each group composed of one or more members, said computer system forwarding diagnostic messages among the members of the groups and including:
means for forming a message including in its header message the following header fields:
(1) a protocol handle identifying the originator protocol from which the request originated; and
(2) a forwarding handle of null value identifying, if present, an original protocol which is current parent of the protocol:
means for sending the diagnostic message to the member of the group identified by the forwarding handle which originated the protocol.
5. The computer system of claim 4, which said means for forming a header message further includes:
means for including in the header to the message an identifier of the member and group which originated the diagnostic message.
6. The computer system of claim 4, wherein said means for forming a header message further includes:
means for including in the header to the message an identifier of the member and group of the parent protocol originator, if any, which originated the diagnostic message.
7. A computer memory element containing stored in signal bearing media a diagnostic message to be forwarded among members of one or more groups in a computer system and utilized therein, the stored diagnostic message containing a header message including the following header fields:
(1) a protocol handle identifying the originator protocol from which the request originated;
(2) a forwarding handle of null value identifying, if present, an original protocol which is the current parent of the protocol; and

instructions for sending the diagnostic message to the member of the group identified by the forwarding handle which originated the protocol.
8. The computer memory element of claim 7, wherein the header message contained in the stored diagnostic message further includes:
an identifier of the member and group which originated the diagnostic message.
9. The computer memory element of claim 7, wherein the header message contained in the stored diagnostic message further includes:
an identifier of the member and group of the parent protocol originator, if any, which originated the diagnostic message.
10. A method of forwarding diagnostic messages among members of groups in a data processing system to those members executing protocols implicated by the message, comprising the steps of:
forwarding as part of the diagnostic message a header including the following header fields:
(1) a protocol handle identifying the originator protocol from which the request originated; and
(2) a forwarding handle identifying, if present, a protocol which is the current parent of the protocol;

examining the forwarding handle at each member of the groups of the system to ascertain if that member was a parent of the protocol identified in the forwarding handle field of the header of the diagnostic message;
forwarding another diagnostic message having a header including the following header fields:
(1) a protocol handle identifying the originator protocol from which the request originated; and
(2) a forwarding handle identifying, if present, a protocol which is the current parent of the protocol.
11. The method of claim 10, further including the step of:
sending the diagnostic message to the member of the group identified by the forwarding handle of another diagnostic message.
12. The method of claim 11, further including the step of:
repeating the steps of claims 12 and 14 until the forwarding handle of the header field indicates the protocol is an original protocol.

1. A composition, comprising:
5 to 91 weight percent of a poly(phenylene ether)-polysiloxane block copolymer reaction product comprising a first poly(phenylene ether) and a poly(phenylene ether)-polysiloxane block copolymer;
4 to 25 weight percent of a flame retardant comprising an organophosphate ester, a phosphazene, or a combination thereof;
5 to 40 weight percent of a reinforcing filler; and
3 to 6 weight percent of an impact modifier selected from the group consisting of rubber-modified polystyrenes, unhydrogenated block copolymers of an alkenyl aromatic monomer and a conjugated diene, hydrogenated block copolymers of an alkenyl aromatic monomer and a conjugated diene, acrylate core-shell impact modifiers, and combinations thereof;
wherein all weight percents are based on the total weight of the composition.
2. The composition of claim 1, exhibiting
a flammability rating of V-0 at a sample thickness less than or equal to 1.5 millimeters in the 20 millimeter Vertical Burning Flame Test of Underwriter’s Laboratory Bulletin 94 \u201cTests for Flammability of Plastic Materials, UL 94\u201d,
a heat deflection temperature of at least 110\xb0 C. determined according to ASTM D 648-07 using a stress of 1.82 megapascals (MPa) and a sample thickness of 6.4 millimeters, and
a flexural modulus of at least 3,500 megapascals measured at 23\xb0 C. according to ASTM D 790-07e1 using a sample thickness of 6.4 millimeters.
3. The composition of claim 1, further comprising 5 to 86 weight percent of a second poly(phenylene ether).
4. The composition of claim 1, wherein the poly(phenylene ether)-polysiloxane block copolymer comprises a poly(phenylene ether) block comprising phenylene ether repeating units having the structure
and
a polysiloxane block having the structure
wherein n is 30 to 60.
5. The composition of claim 1, wherein the poly(phenylene ether)-polysiloxane block copolymer contributes 0.25 to 5 weight percent of polysiloxane to the composition.
6. The composition of claim 1, wherein the flame retardant comprises an organophosphate ester.
7. The composition of claim 1, wherein the flame retardant comprises a phosphazene.
8. The composition of claim 1, wherein the reinforcing filler is selected from the group consisting of glass fibers, carbon fibers, wollastonite, halloysite, clays, talcs, micas, glass flakes, solid glass beads, hollow glass beads, solid ceramic beads, hollow ceramic beads, and combinations thereof.
9. The composition of claim 1, wherein the reinforcing filler comprises glass fibers.
10. The composition of claim 1, wherein the reinforcing filler consists of glass fibers.
11. The composition of claim 1, comprising the impact modifier; wherein the impact modifier is selected from the group consisting of rubber-modified polystyrenes, unhydrogenated block copolymers of an alkenyl aromatic monomer and a conjugated diene, acrylate core-shell impact modifiers, and combinations thereof.
12. The composition of claim 1, comprising 0 to 1 weight percent of each of polyamides and polyesters.
13. The composition of claim 1,
wherein the poly(phenylene ether)-polysiloxane block copolymer comprises a poly(phenylene ether) block comprising phenylene ether repeating units having the structure
and
a polysiloxane block having the structure
wherein n is 30 to 60;
wherein the composition comprises 5 to 15 weight percent of the poly(phenylene ether)-polysiloxane block copolymer reaction product;
wherein the composition further comprises 47 to 67 weight percent of a second poly(phenylene ether) comprising a homopolymer of 2,6-dimethylphenol;
wherein the flame retardant comprises an organophosphate ester;
wherein the composition comprises 6 to 14 weight percent of the flame retardant;
wherein the reinforcing filler comprises glass fibers;
wherein the composition comprises 10 to 30 weight percent of the reinforcing filler;
wherein the composition comprises the impact modifier, and the impact modifier is a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer; and
wherein the composition comprises 0 to 1 weight percent of each of polyamides and polyesters.
14. The composition of claim 13, wherein the composition comprises 15 to 25 weight percent of the reinforcing filler.
15. An article comprising a composition, comprising:
5 to 91 weight percent of a poly(phenylene ether)-polysiloxane block copolymer reaction product comprising a first poly(phenylene ether) and a poly(phenylene ether)-polysiloxane block copolymer;
4 to 25 weight percent of a flame retardant comprising an organophosphate ester, a phosphazene, or a combination thereof;
5 to 40 weight percent of a reinforcing filler; and
3 to 6 weight percent of an impact modifier selected from the group consisting of rubber-modified polystyrenes, unhydrogenated block copolymers of an alkenyl aromatic monomer and a conjugated diene, hydrogenated block copolymers of an alkenyl aromatic monomer and a conjugated diene, acrylate core-shell impact modifiers, and combinations thereof;
wherein all weight percents are based on the total weight of the composition.
16. The article of claim 15, wherein the article is selected from the group consisting of electrophotographic copier parts, photovoltaic junction boxes and connectors, inverter housings, automotive electrical connectors, electrical relays, and charge couplers.
17. The article of claim 15, wherein the article is a fuser holder for an electrophotographic copier.
18. The article of claim 15,
wherein the poly(phenylene ether)-polysiloxane block copolymer comprises a poly(phenylene ether) block comprising phenylene ether repeating units having the structure
and
a polysiloxane block having the structure
wherein n is 30 to 60;
wherein the composition comprises 5 to 15 weight percent of the poly(phenylene ether)-polysiloxane block copolymer reaction product;
wherein the composition further comprises 47 to 67 weight percent of a second poly(phenylene ether) comprising a homopolymer of 2,6-dimethylphenol;
wherein the flame retardant comprises an organophosphate ester;
wherein the composition comprises 6 to 14 weight percent of the flame retardant;
wherein the reinforcing filler comprises glass fibers;
wherein the composition comprises 10 to 30 weight percent of the reinforcing filler;
wherein the composition comprises the impact modifier, and the impact modifier is a polystyrene-poly(ethylene-butylene)-polystyrene triblock copolymer; and
wherein the composition comprises 0 to 1 weight percent of each of polyamides and polyesters.
19. The article of claim 18, wherein the composition comprises 15 to 25 weight percent of the reinforcing filler.

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 method of operating a construction machine, the construction machine having a machine frame, a working drum supported from the machine frame, a combustion engine supported from the machine frame, a drive train connecting the combustion engine and the working drum, the drive train including a clutch, the clutch including a drive side including at least one drive side clutch element and an output side including at least one output side clutch element operably engageable with the at least one drive side clutch element, the method comprising:
(a) transferring a load torque from the engine to the working drum during a working mode when the working drum is working a ground surface;
(b) transferring a drag torque from the engine to the working drum during a non-working mode when the working drum is rotating but not working a ground surface; and
(c) during engagement of the clutch, transmitting a braking torque between the output side of the clutch and the drive side of the clutch without passing the braking torque through the operably engaged clutch elements, the braking torque being smaller than the load torque and larger than the drag torque.
2. The method of claim 1, wherein:
the at least one drive side clutch element or the at least one output side clutch element includes an axially fixed part and an axially slidable part engaged with one another via a mechanical coupling having rotational play between the axial fixed and axially slidable parts about a rotational axis of the clutch, and in step (c) the braking torque eliminates or reduces relative rotational motion between the axially fixed part and the axially slidable part caused by the rotational play between the axially fixed part and the axially slidable part.
3. The method of claim 1, wherein:
the clutch includes an annular flange elastic in axial direction and connected to either the drive side or the output side of the clutch, the other of the drive side or the output side of the clutch includes an axial resting surface, and step (c) further comprises frictionally engaging the annular flange with the axial resting surface to transmit the braking torque.
4. The method of claim 3, further comprising:
engaging the clutch by axially moving the at least one output side clutch element with a hydraulic piston, and wherein the movement of the hydraulic piston also engages the annular flange with the axial resting surface.
5. The method of claim 1, wherein:
the clutch includes a plurality of radially acting brake linings, and step (c) further comprises using centrifugal forces acting on the radially acting brake linings during rotation of the clutch to transmit the braking torque.
6. The method of claim 1, further comprising:
engaging the clutch by axially moving the at least one output side clutch element with a hydraulic piston.
7. The method of claim 1, wherein:
in step (c) the braking torque is transmitted via an electromagnetic force.
8. The method of claim 1, wherein:
in step (c) the braking torque is transmitted via an eddy current force.
9. A method of operating a construction machine, the construction machine including:
a machine frame;
a working drum supported from the machine frame;
a combustion engine supported from the machine frame; and
a drive train connecting the combustion engine and the working drum so that the combustion engine drives the working drum, the drive train including a drive shaft, an output shaft and a clutch arranged between the drive shaft and the output shaft, the clutch including:
a drive side including at least one drive side clutch element;
an output side including at least one output side clutch element operably engageable with the at least one drive side clutch element to rotationally couple the drive shaft and the output shaft;
wherein the at least one drive side clutch element or the at least one output side clutch element includes an axially fixed part and an axially slidable part engaged with one another via a mechanical coupling having rotational play between the axial fixed and axially slidable parts about a rotational axis of the drive shaft;
the method comprising the steps of:
transmitting via a clutch brake a frictional rotating force between the drive side and the output side without passing the frictional rotating force through the operably engaged clutch elements, and thereby reducing relative rotational motion between the axially fixed part and the axially slidable part caused by the rotational play between the axially fixed part and the axially slidable part.
10. The method of claim 9, further comprising:
transferring a load torque from the engine to the working drum during a working mode when the working drum is working a ground surface;
transferring a drag torque from the engine to the working drum during a non-working mode when the working drum is rotating but not working a ground surface; and
wherein the frictional rotational coupling force provided by the clutch brake during the transmitting step is such that a braking torque transferred from the output shaft to the drive shaft via the clutch brake is smaller than the load torque and larger than the drag torque.
11. The method of claim 9, wherein:
the frictional rotational coupling force provided by the clutch brake is such that a braking torque transferred between the output shaft and the drive shaft via the clutch brake is smaller than a maximum torque in a first rotational direction transferred from the drive shaft to the output shaft to rotate the working drum when the working drum is engaging a ground surface, and the braking torque is larger than any torque transferred from the output shaft back to the drive shaft in a second rotational direction opposite the first rotational direction due to rotational vibration of the drive train.
12. The method of claim 9, wherein:
the frictional rotational coupling force provided by the clutch brake is such that a braking torque required to overcome the frictional rotational coupling force to rotationally move the axially fixed part relative to the axially slidable part within the rotational play therebetween is larger than a maximum torque transferred from the drive shaft to the output shaft to rotate the working drum when the working drum is in non-load operation not engaging a ground surface.
13. The method of claim 9, wherein:
the frictional rotational coupling force provided by the clutch brake couples the axially fixed part and the axially slidable part sufficiently to eliminate the rotational play therebetween at least in the rotational direction of load transfer from the drive shaft to the output shaft.
14. The method of claim 9, wherein:
the clutch brake includes an annular flange elastic in axial direction and connected to either the drive side or the output side of the clutch, the other of the drive side or the output side of the clutch includes an axial resting surface, and the transmitting step further comprises frictionally engaging the annular flange with the axial resting surface to transmit the frictional rotating force.
15. The method of claim 14, further comprising:
engaging the clutch by axially moving the at least one output side clutch element with a hydraulic piston, and wherein the movement of the hydraulic piston also engages the annular flange with the axial resting surface.
16. The method of claim 9, wherein:
the clutch includes a plurality of radially acting brake linings, and the transmitting step further comprises using centrifugal forces acting on the radially acting brake linings during rotation of the clutch to transmit the frictional rotating force.
17. A construction machine, comprising:
a machine frame;
a working drum supported from the machine frame;
a combustion engine supported from the machine frame; and
a drive train connecting the combustion engine and the working drum so that the combustion engine drives the working drum, the drive train including a drive shaft, an output shaft and a clutch arranged between the drive shaft and the output shaft, the clutch including:
a drive side including at least one drive side clutch element;
an output side including at least one output side clutch element operably engageable with the at least one drive side clutch element to rotationally couple the drive shaft and the output shaft;
wherein the at least one drive side clutch element or the at least one output side clutch element includes an axially fixed part and an axially slidable part engaged with one another via a mechanical coupling having rotational play between the axial fixed and axially slidable parts about a rotational axis of the drive shaft; and

wherein the drive train further includes an electromagnetic clutch brake operable during engagement of the clutch to provide a rotational coupling force between the drive side and the output side to eliminate or reduce relative rotational motion between the axially fixed part and the axially slidable part caused by the rotational play between the axially fixed part and the axially slidable part, the clutch brake being separate from the clutch elements so that the rotational coupling force of the clutch brake is transmitted between the drive side and the output side without passing through the operably engaged clutch elements.
18. A construction machine, comprising:
a machine frame;
a working drum supported from the machine frame;
a combustion engine supported from the machine frame; and
a drive train connecting the combustion engine and the working drum so that the combustion engine drives the working drum, the drive train including a drive shaft, an output shaft and a clutch arranged between the drive shaft and the output shaft, the clutch including:
a drive side including at least one drive side clutch element;
an output side including at least one output side clutch element operably engageable with the at least one drive side clutch element to rotationally couple the drive shaft and the output shaft;
wherein the at least one drive side clutch element or the at least one output side clutch element includes an axially fixed part and an axially slidable part engaged with one another via a mechanical coupling having rotational play between the axial fixed and axially slidable parts about a rotational axis of the drive shaft; and

wherein the drive train further includes an eddy current clutch brake operable during engagement of the clutch to provide a rotational coupling force between the drive side and the output side to eliminate or reduce relative rotational motion between the axially fixed part and the axially slidable part caused by the rotational play between the axially fixed part and the axially slidable part, the clutch brake being separate from the clutch elements so that the rotational coupling force of the clutch brake is transmitted between the drive side and the output side without passing through the operably engaged clutch elements.