초록 ▼

An integrated transient voltage surge suppression system and automatic power transfer switch which includes a framework, an automatic transfer switch mounted to the framework, the automatic transfer switch being configured for electrical connection to a primary source of electrical power, a secondar

An integrated transient voltage surge suppression system and automatic power transfer switch which includes a framework, an automatic transfer switch mounted to the framework, the automatic transfer switch being configured for electrical connection to a primary source of electrical power, a secondary source of electrical power, and a recipient electrical power load, the automatic transfer switch being configured to normally route primary electrical power from the primary source of electrical power to the recipient electrical power load, the automatic transfer switch being further configured to switch upon the occurrence of a predetermined switch condition such that the automatic power switch alternately routes secondary electrical power from the secondary source of electrical power to the recipient power load; and a transient voltage surge suppression device mounted to the framework and electrically positioned between the automatic transfer switch and the recipient electrical power load.

대표청구항 ▼

An integrated transient voltage surge suppression system and automatic power transfer switch which includes a framework, an automatic transfer switch mounted to the framework, the automatic transfer switch being configured for electrical connection to a primary source of electrical power, a secondar

An integrated transient voltage surge suppression system and automatic power transfer switch which includes a framework, an automatic transfer switch mounted to the framework, the automatic transfer switch being configured for electrical connection to a primary source of electrical power, a secondary source of electrical power, and a recipient electrical power load, the automatic transfer switch being configured to normally route primary electrical power from the primary source of electrical power to the recipient electrical power load, the automatic transfer switch being further configured to switch upon the occurrence of a predetermined switch condition such that the automatic power switch alternately routes secondary electrical power from the secondary source of electrical power to the recipient power load; and a transient voltage surge suppression device mounted to the framework and electrically positioned between the automatic transfer switch and the recipient electrical power load. nonmagnetic gap layer extending from a face opposing the recording medium on the lower magnetic pole layer; an upper core layer in contact with the upper face of the gap layer; a coil layer lying behind the back end of the lower magnetic pole layer in the height direction, the coil layer being covered with a coil-insulating layer and inducing a recording magnetic field in the lower core layer and the upper core layer; and a gap-depth-defining insulating layer provided on the lower magnetic pole layer and extending from a position which is distant from a face opposing a recording medium by a predetermined distance in the height direction, wherein the upper core layer in contact with the gap layer has a track width Tw at an exposed face opposing a recording medium, and the upper core layer extends on the coil-insulating layer. 3. A thin-film magnetic head according to claim 2, wherein the gap-distance-defining insulating layer comprises an organic insulating material.4. A thin-film magnetic head according to claim 2, wherein the lower magnetic pole layer has a predetermined length from the face opposing the recording medium in the height direction, the predetermined length being larger than a gap depth from the face opposing the recording medium to the front end of an insulating layer in the height direction.5. A thin-film magnetic head comprising: a lower core layer; a lower magnetic pole layer formed separately on the lower core layer, the lower magnetic pole layer extending from a face opposing a recording medium by a predetermined length in a height direction, a back end of the lower magnetic pole layer forming a step on an upper face of the lower core layer; a nonmagnetic gap layer extending from a face opposing the recording medium on the lower magnetic pole layer; an upper core layer in contact with the upper face of the gap layer; a coil layer lying behind the back end of the lower magnetic pole layer in the height direction, the coil layer being covered with a coil-insulating layer and inducing a recording magnetic field in the lower core layer and the upper core layer; and a gap-depth-defining insulating layer extending from a position distant from a face opposing a recording medium by a predetermined distance in the height direction, wherein the gap-defining insulating layer and an insulating layer lying between the coil layer and the lower core layer are integrally formed, wherein the upper core layer in contact with the gap layer has a track width Tw at an exposed face opposing a recording medium, and the upper core layer extends on the coil-insulating layer. 6. A thin-film magnetic head according to claim 5, wherein the lower magnetic pole layer has a predetermined length from the face opposing the recording medium in the height direction, the predetermined length being larger than a gap depth from the face opposing the recording medium to the front end of an insulating layer in the height direction.7. A thin-film magnetic head comprising: a lower core layer; a lower magnetic pole layer formed integrally with an upper face of the lower core layer, the lower magnetic pole layer extending from a face opposing a recording medium by a predetermined length in a height direction, a back end of the lower magnetic pole layer forming a step on the upper face of the lower core layer; a nonmagnetic gap layer extending from a face opposing the recording medium on the lower magnetic pole layer; an upper core layer in contact with the upper face of the gap layer; a coil layer lying behind the back end of the lower magnetic pole layer in the height direction, the coil layer being covered with a coil-insulating layer and inducing a recording magnetic field in the lower core layer and the upper core layer; and a gap-depth-defining insulating layer provided on the lower magnetic pole layer and extending from a position which is distant from a face opposing a recording medium by a pr edetermined distance in the height direction, wherein the upper core layer in contact with the gap layer has a track width Tw at an exposed face opposing a recording medium, and the upper core layer extends on the coil-insulating layer. 8. A thin-film magnetic head according to claim 7, wherein the gap-distance-defining insulating layer comprises an organic insulating material.9. A thin-film magnetic head according to claim 7, wherein the lower magnetic pole layer has a predetermined length from the face opposing the recording medium in the height direction, the predetermined length being larger than a gap depth from the face opposing the recording medium to the front end of an insulating layer in the height direction.10. A thin-film magnetic head comprising: a lower core layer; a lower magnetic pole layer formed integrally with an upper face of the lower core layer, the lower magnetic pole layer extending from a face opposing a recording medium by a predetermined length in a height direction, a back end of the lower magnetic pole layer forming a step on the upper face of the lower core layer; a nonmagnetic gap layer extending from a face opposing the recording medium on the lower magnetic pole layer; an upper core layer in contact with the upper face of the gap layer; a coil layer lying behind the back end of the lower magnetic pole layer in the height direction, the coil layer being covered with a coil-insulating layer and inducing a recording magnetic field in the lower core layer and the upper core layer; and a gap-depth-defining insulating layer extending from a position distant from a face opposing a recording medium by a predetermined distance in the height direction, wherein the gap-defining insulating layer and an insulating layer lying between the coil layer and the lower core layer are integrally formed, and wherein the upper core layer in contact with the gap layer has a track width Tw at an exposed face opposing a recording medium, and the upper core layer extends on the coil-insulating layer. 11. A thin-film magnetic head according to claim 10, wherein the lower magnetic pole layer has a predetermined length from the face opposing the recording medium in the height direction, the predetermined length being larger than a gap depth the face opposing the recording medium to the front end of an insulating layer in the height direction.12. A thin-film magnetic head comprising: a lower core layer; a lower magnetic pole layer formed separately on the lower core layer, the lower magnetic pole layer extending from a face opposing a recording medium by a predetermined length in a height direction, a back end of the lower magnetic pole layer forming a step on an upper face of the lower core layer; a nonmagnetic gap layer extending from a face opposing the recording medium on the lower magnetic pole layer; an upper core layer in contact with the upper face of the gap layer; and a coil layer lying behind the back end of the lower magnetic pole layer in the height direction, the coil layer being covered with a coil-insulating layer and inducing a recording magnetic field in the lower core layer and the upper core layer; wherein the upper core layer in contact with the gap layer has a track width Tw at an exposed face opposing a recording medium, and the upper core layer extends on the coil-insulating layer, wherein the gap layer has the track width Tw, and the lower magnetic pole layer has the track width Tw at a position in contact with the gap layer, wherein the lower magnetic pole layer is formed independently of the lower core layer and is rectangularly or trapezoidally shaped as viewed from the exposed face and in which the lower core layer has upper faces sloping away from and in directions departing from the lower magnetic pole layer at both sides in the track width direction.