| Woolslayer Companies, Inc. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110302869 | DUAL OFFSET DERRICK - An oil derrick comprising a derrick tower, where the derrick tower is asymmetrical about its z axis in both x and y directions. The dual offset derrick tower structure allows for a unique drill floor arrangement. | 12-15-2011 |
| 20110120043 | Articulating Mast - The present invention relates to an articulating mast having sections that may be moved between an open, in-use position and a more compact reduced width configuration for storage and transportation. | 05-26-2011 |
| 20100150661 | OPEN FACE DERRICK - An offshore oil derrick having a derrick tower, a derrick substructure, and a drilling floor. The derrick substructure is cantileverly supported by a hull, the derrick tower is supported by the derrick substructure, and the drilling floor is located on top of the derrick substructure below the derrick tower. The drilling floor comprises a v-door on the fore end; a well center approximately 40-50% of the floor length from the aft end; a plurality of setback areas; drawworks on the starboard side; a dynamic brake on the aft end of the drawworks; and a driller's station. The derrick may further include a spare line spool connected to the derrick substructure on the forward end of the derrick. | 06-17-2010 |
