John Bruce
John Bruce Bowlerwell, Peterhead GB
Patent application number | Description | Published |
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20100166229 | CHARGE PUMP CIRCUITS - Charge pump circuits having circuit components such as transistors which may be damaged by voltage transients greater than the normal operating voltage levels of the charge pump circuit, such as may be experienced during powering down. The circuit components to be protected are connected in parallel with a leakage element arranged to have a leakage current that is small enough during normal operation to allow the charge pump to operate effectively but which is large enough, during development of a voltage transient, to prevent excess voltage levels being achieved. The leakage element may have a significant leakage current at a voltage less than the breakdown voltage of the circuit component. Suitable leakage elements are poly diodes. | 07-01-2010 |
John Bruce Piggott, Jr., San Jose, CA US
Patent application number | Description | Published |
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20100159154 | METHODS FOR CREATING A STEPPED PERPENDICULAR MAGNETIC POLE VIA MILLING AND/OR METAL LIFTOFF - A method in one embodiment includes forming a layer of a nonmagnetic material above an upper surface of a substrate; forming a resist structure above the layer of nonmagnetic material, wherein the resist structure has an undercut; removing a portion of the layer of nonmagnetic material not covered by the resist structure; depositing a layer of magnetic material above the substrate adjacent a remaining portion of the layer of nonmagnetic material such that at least portions of the layer of magnetic material and the remaining portion of the layer of nonmagnetic material lie in a common plane; removing the resist structure; and forming a write pole above the layer of magnetic material and the remaining portion of the layer of nonmagnetic material. Additional methods are also presented. | 06-24-2010 |
John Bruce Sloop, Jr., Augusta, GA US
Patent application number | Description | Published |
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20090172994 | Bait retrieval assembly in live well for off-shore boat - A live well for live bait is provided with a bait retrieval assembly of readily available structural components which are combined in an unexpectedly useful manner to allow all operations to be carried out using one hand only. The live well, which is typically closed with a substantially rigid cover, may be of arbitrary cross-section but is typically either cylindrical or rectangular, and in each case, tapered. The retrieval assembly includes a telescopable support member comprising plural telescopable cylinders; the innermost cylinder is capped and provided with a fastening means for a colander which is reciprocable on the support member. An electrically actuated fluid control system comprising a feed pump and valves pumps water into the support member and pressurizes it sufficiently to raise the innermost cylinder and the colander when a bait is to be selected. Flow of water to the support member is cut off when the colander is to be lowered into the well. | 07-09-2009 |