Greenan
Iain Greenan, Houston, TX US
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20150021030 | TEMPERATURE COMPENSATED ELEMENT - A time actuated element includes a mandrel, a housing coupled to the mandrel, the housing defining a fluid expansion chamber. A piston is positioned within the fluid expansion chamber. A thermally expanding fluid is positioned within the fluid expansion chamber. An end ring coupled to the piston slides along the mandrel in response to a sliding of the piston. A packer having a first end and a second end, the first end adapted to slide along the mandrel in response to a sliding of the end ring, and the second end fixedly coupled to the mandrel, so that a sliding of the first end of the packer toward the second end causes the packer element to decrease in length and increase in radius. | 01-22-2015 |
20150041148 | Hydraulic Cycle Opening Sleeve - According to one aspect of the disclosure, a hydraulic cycle opening sleeve includes a valve assembly and an opening assembly. The valve assembly includes at least one valve chamber and valve piston positioned to move in response to fluid pressure. The opening assembly includes a sliding piston to selectively open or close the hydraulic cycle opening sleeve. | 02-12-2015 |
20150204158 | TEMPERATURE COMPENSATED ELEMENT - A temperature actuated element includes a mandrel, a housing coupled to the mandrel, the housing defining a fluid expansion chamber. A piston is positioned within the fluid expansion chamber. A thermally expanding fluid is positioned within the fluid expansion chamber. An end ring coupled to the piston slides along the mandrel in response to a sliding of the piston. A degradable ring is coupled to the mandrel to prevent movement of the end ring before the degradable ring is dissolved. A packer having a first end and a second end, the first end adapted to slide along the mandrel in response to a sliding of the end ring, and the second end fixedly coupled to the mandrel, so that a sliding of the first end of the packer toward the second end causes the packer element to decrease in length and increase in radius. | 07-23-2015 |
Iain M. Greenan, Houston, TX US
Patent application number | Description | Published |
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20140166292 | Sliding Sleeve Having Deformable Ball Seat - A sliding sleeve opens with a deployed ball. The sleeve has a seat disposed in the housing, and the seat has segments biased outward from one another with a C-ring or other biasing element. Initially, the seat has an expanded state in the sliding sleeve so that the seats segments expand outward against the housing's bore. When an appropriately sized ball is deployed downhole, the ball engages the expanded seat. Fluid pressure applied against the seated ball moves the seat into the inner sleeve's bore. As this occurs, the seat contracts, which increases the engagement area of the seat with the ball. Eventually, the seat reaches the shoulder in the inner sleeve so that pressure applied against the seated ball now moves the inner sleeve in the housing to open the sliding sleeve's flow port. | 06-19-2014 |
20150021044 | GROOVED SWELLABLE PACKER - A swellable packer which includes a generally tubular mandrel having a central axis and an exterior cylindrical surface. The swellable packer further includes a swellable elastomeric body fixed to the exterior cylindrical surface of the mandrel, wherein the swellable elastomeric body includes a plurality of grooves and wherein the generally tubular elastomeric sleeve has a circumference and a thickness. | 01-22-2015 |
Kevin M. Greenan, Palo Alto, CA US
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20100235677 | Generating A Parallel Recovery Plan For A Data Storage System - A method of identifying a parallel recovery plan for a data storage system comprises identifying base recovery plans for symbols of an erasure code implemented across a plurality of storage devices in a data storage system, generating a list of first recovery plans for a first symbol by manipulating the base recovery plans, and combining selected first recovery plans from the list to generate a set of parallel recovery plans to reconstruct a failed storage device. | 09-16-2010 |
Kevin M. Greenan, Santa Cruz, CA US
Patent application number | Description | Published |
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20100083068 | Allocation Of Symbols Of An Erasure Code Across A Plurality Of Devices - A technique is provided for determining an allocation of the symbols of an erasure code across a plurality of devices. A list of erasure patterns is provided for the erasure code and, based on the list, minimal erasures of minimal weight are identified for the code's symbols. Precedences of the symbols are determined based on the size of the corresponding MEMW. An allocation of the symbols across a plurality of devices is determined based on the precedences. | 04-01-2010 |
20100115335 | Simulator For Determining Data Loss In A Fault Tolerant System - A fault tolerant system is simulated to determine the occurrence of data loss in the fault tolerant system. A list of erasure patterns corresponding to an erasure code implemented across the devices in the system is provided and a device event is simulated. The list of erasure patterns is updated based on the device event, and the occurrence of data loss is determined based on the updated list. | 05-06-2010 |
Thomas Greenan, Round Rock, TX US
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20130137320 | PERSONAL FLOTATION APPARATUS - A personal flotation apparatus having a main body member, a primary support member, a head support member, and a foot support member, each made of flexible, buoyant, flotation material. The primary support member, head support member, and foot support member are each connected to the main body member, such that they are substantially perpendicular to the main body member and can provide stability, buoyancy and support in various floating and swimming positions. Some embodiments include multiple main body members to increase stability, buoyancy, support and comfort, and allow for heavier users. | 05-30-2013 |
Thomas Greenan US
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20150298780 | PERSONAL FLOTATION DEVICE - A personal flotation apparatus having a main body member, a primary support member, a head support member, and a foot support member, each made of flexible, buoyant, flotation material. The primary support member, head support member, and foot support member are each connected to the main body member, such that they are substantially perpendicular to the main body member and can provide stability, buoyancy and support in various floating and swimming positions. Some embodiments include multiple main body members to increase stability, buoyancy, support and comfort, and allow for heavier users. | 10-22-2015 |
Thomas Greenan, Leander, TX US
Patent application number | Description | Published |
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20150298780 | PERSONAL FLOTATION DEVICE - A personal flotation apparatus having a main body member, a primary support member, a head support member, and a foot support member, each made of flexible, buoyant, flotation material. The primary support member, head support member, and foot support member are each connected to the main body member, such that they are substantially perpendicular to the main body member and can provide stability, buoyancy and support in various floating and swimming positions. Some embodiments include multiple main body members to increase stability, buoyancy, support and comfort, and allow for heavier users. | 10-22-2015 |
Trevor Greenan, Sunrise, FL US
Patent application number | Description | Published |
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20100217383 | Apparatus for Engrafting a Blood Vessel - The present invention relates to an apparatus for deploying an endoluminal prosthesis for engrafting a blood vessel. The apparatus includes a bifurcated graft that is able to conform to the interior surface of the blood vessel and can be deployed through a single entry site. | 08-26-2010 |