Patent application number | Description | Published |
20090151934 | TOP DRIVE SYSTEM - In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill. | 06-18-2009 |
20100032162 | FILL UP AND CIRCULATION TOOL AND MUDSAVER VALVE - A fill-up and circulation tool includes a mandrel; a packer assembly is disposed around the mandrel; and a valve assembly connected to the mandrel, wherein the valve assembly is configured to selectively control fluid flow into the tool and out of the tool. | 02-11-2010 |
20100059231 | METHODS AND APPARATUS FOR SUPPORTING TUBULARS - Embodiments of the invention relate to a gripping apparatus for supporting a tubular. The gripping apparatus may include a housing, a slip assembly disposed in the housing, and a leveling ring operable to move the slip assembly in the housing. The gripping apparatus may further include a guide member and a mating member operable to couple the slip assembly to the leveling ring. The longitudinal movement of the leveling ring directs the mating member along the guide member to radially displace the slip assembly relative to the housing. | 03-11-2010 |
20120211244 | TOP DRIVE SYSTEM - In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill. | 08-23-2012 |
20140326468 | METHOD OF USING A TOP DRIVE SYSTEM - In one embodiment, a top drive system includes a quill; a motor operable to rotate the quill; a gripper operable to engage a joint of casing; a connector bi-directionally rotationally coupled to the quill and the gripper and longitudinally coupled to the gripper; and a compensator longitudinally coupled to the quill and the connector. The compensator is operable to allow relative longitudinal movement between the connector and the quill. | 11-06-2014 |
Patent application number | Description | Published |
20090209877 | AUTOMATED QUALITATIVE MASK FIT TESTER - A hand-held, automated qualitative fit tester (QLFT) for establishing gas mask fit integrity. The automated QLFT may be configured to utilize a pressure source in combination with a cartridge and a nebulizer to generate aerosols having size distributions and concentrations that are substantially the same as OSHA-approved manual units. The QLFT may further include a cartridge that contains the aerosol solution used to test mask integrity. The cartridge may be configured to recapture solution that collects on the interior walls of the nebulizer. The automated QLFT may also be equipped with a microprocessor for executing sequences that are in substantive compliance with 29 CFR 1910.134 and for writing to a data storage device. The automated aspects of the invention can reduce or negate the need for operating personnel to repeatedly and manually actuate a squeeze ball and record results manually, as is required with present OSHA-approved hand-held aerosol generators. | 08-20-2009 |
20120080457 | POWDER DELIVERY SYSTEM - A delivery system for delivery of powders to targeted areas. Various embodiments include a powder delivery train that mates with standard-sized powder containers. Another embodiment includes a bellows container that contains the powder and propels the powder through the powder delivery train. Another embodiment integrates the powder delivery train with the sifter cap and enables the powder delivery tube to be stowed within the powder container. | 04-05-2012 |
20120209260 | PREDICTION OF ATRIAL WALL ELECTRICAL RECONNECTION BASED ON CONTACT FORCE MEASURED DURING RF ABLATION - A method and device for determining the transmuriality and/or continuity of an isolation line formed by a plurality of point contact ablations. In one embodiment, a method for determining the size of a lesion (width, depth and/or volume) is disclosed, based on contact force of the ablation head with the target tissue, and an energization parameter that quantifies the energy delivered to the target tissue during the duration time of the lesion formation. In another embodiment, the sequential nature (sequence in time and space) of the ablation line formation is tracked and quantified in a quantity herein referred to as the “jump index,” and used in conjunction with the lesion size information to determine the probability of a gap later forming in the isolation line. | 08-16-2012 |
20120265102 | COMPACT FORCE SENSOR FOR CATHETERS - An ablation catheter system configured with a compact force sensor at a distal end for detection of contact forces exerted on an end effector. The force sensor includes fiber optics operatively coupled with reflecting members on a structural member. In one embodiment, the optical fibers and reflecting members cooperate with the deformable structure to provide a variable gap interferometer for sensing deformation of the structural member due to contact force. In another embodiment, a change in the intensity of the reflected light is detected to measure the deformation. The measured deformations are then used to compute a contact force vector. In some embodiments, the force sensor is configured to passively compensate for temperature changes that otherwise lead to erroneous force indications. In other embodiments, the system actively compensates for errant force indications caused by temperature changes by measuring certain local temperatures of the structural member. | 10-18-2012 |
20130200585 | TRANSPORT CART - A transport cart that can be configured with an open carriage or a covered carriage. The open carriage configuration includes a carriage portion of unitary construction that defines a span portion and two end wall portions that extend perpendicular thereto. The covered carriage includes a cover portion that is substantially identical to the carriage portion, the cover and carriage portions being adapted to cooperate with each other to form the covered carriage configuration. In one embodiment, the carriage and cover portions are polymer based and formed from a rotational molding process. | 08-08-2013 |