Inventors list |
Assignees list |
Classification tree browser |
Top 100 Inventors |
Top 100 Assignees |
Abrahamsen, US
Egill Abrahamsen, Katy, TX US
| Patent application number | Description | Published |
|---|---|---|
| 20080264648 | APPARATUS AND METHODS FOR TUBULAR MAKEUP INTERLOCK - Apparatus and methods are provided to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. In one embodiment, an interlock system is used to control the operations of a gripping apparatus connected to the top drive and a spider such that at least one of the top drive or the spider retains the tubular. The interlock system allows the spider to open when the gripping apparatus is supporting a load of the tubular or is in position to support a load of the tubular. | 10-30-2008 |
| 20110017474 | APPARATUS AND METHODS FOR TUBULAR MAKEUP INTERLOCK - Apparatus and methods are provided to prevent an operator from inadvertently dropping a string into a wellbore during assembling and disassembling of tubulars. In one embodiment, an interlock system is used to control the operations of a gripping apparatus connected to the top drive and a spider such that at least one of the top drive or the spider retains the tubular. The interlock system allows the spider to open when the gripping apparatus is supporting a load of the tubular or is in position to support a load of the tubular. | 01-27-2011 |
Michael H. Abrahamsen, Greenwood, SC US
| Patent application number | Description | Published |
|---|---|---|
| 20090185332 | CASSETTE ASSEMBLY AND PANEL ASSEMBLY THEREFOR - A panel assembly for an electrical enclosure has a fixed mounting portion and a movable panel portion. The electrical enclosure has an interior substantially sealed from an exterior except at a number of apertures. The panel assembly includes a mounting portion coupled to the enclosure and a panel portion generally disposed over a corresponding one of the number of apertures. The panel portion is movable in a first direction from a first position to a second position by gas formed from an arcing event within the electrical enclosure passing outward through the corresponding aperture. The panel portion is constrained from movement in an opposite second direction due to a portion of the electrical enclosure. | 07-23-2009 |
| 20090185333 | ELECTRICAL ENCLOSURE ASSEMBLY HAVING VENTING SYSTEM - An electrical enclosure assembly is provided including a first enclosure and a second enclosure disposed within the first enclosure. The first enclosure having a plurality of walls defining an interior and an exterior with one of the walls including a first number of one way vents. The interior being substantially sealed from the exterior except at the first number of one way vents. The second enclosure having a plurality of walls defining an interior separate from the interior of the first enclosure. One of the plurality of walls of the second enclosure including a second number of one way vents. The interior of the second enclosure being substantially sealed from the interior of the first enclosure except at the second number of one way vents. | 07-23-2009 |
Michael H. Abrahamsen, Hendersonville, NC US
| Patent application number | Description | Published |
|---|---|---|
| 20090116175 | ELECTRICAL ENCLOSURE AND SUPPORT ASSEMBLY THEREFOR - A support assembly is provided for an electrical enclosure including a housing having first and second opposing sides, electrical bus members, and at least one electrical switching apparatus, such as a circuit breaker. Each of the electrical bus members is electrically connectable to a corresponding one of the circuit breakers. The support assembly includes at least one support member having first and second opposing ends, first and second opposing edges, and a plurality of apertures extending from the first edge toward the second edge and receiving the electrical bus members. A fastener assembly supports the support member(s) between the first and second sides of the housing. Each support member extends only a portion of the width between the first and second sides of the housing, and supports the electrical bus members, without being attached to the housing at a location between the first and second sides thereof. | 05-07-2009 |
| 20090116177 | ELECTRICAL ENCLOSURE AND ELECTRICAL BUS ASSEMBLY THEREFOR - An electrical bus assembly for an electrical enclosure includes a single branch circuit with a plurality of branch circuit buses. First electrical bus members include first ends electrically connected to corresponding branch circuit buses, and second ends electrically connected to a first circuit breaker. Second electrical bus members include first ends electrically connected to corresponding branch circuit buses, and second ends electrically connected to a second circuit breaker. The single branch circuit provides electrical power to the first and second circuit breakers. The first electrical bus members extend in a first lateral direction with respect to the branch circuit buses, and the second electrical bus members extend in a second, opposite lateral direction. The electrical bus assembly enables the first circuit breaker to be disposed horizontally adjacent to the second circuit breaker within a corresponding one of the cells of the electrical enclosure. | 05-07-2009 |
Michael Howard Abrahamsen, Greenwood, SC US
| Patent application number | Description | Published |
|---|---|---|
| 20100072039 | Seal Apparatus for Circuit Breaker Application - A seal apparatus is disposed between a switchgear cabinet and a circuit breaker between the racked and unracked positions of the circuit breaker. The seal apparatus sealingly extends between the switchgear cabinet and the circuit breaker to resist fluid flow, such as exhaust gases and other matter, between an interior region of the switchgear cabinet and the exterior of the switchgear cabinet. | 03-25-2010 |