Ollerenshaw
Andrew Ollerenshaw, Sheffield GB
Patent application number | Description | Published |
---|---|---|
20100108394 | Downhole Tool - A downhole tool ( | 05-06-2010 |
Andy Ollerenshaw, Sheffield South Yorkshire GB
Patent application number | Description | Published |
---|---|---|
20110308784 | DISCONNECT DEVICE FOR DOWNHOLE ASSEMBLY - A downhole tool for incorporation in a drill pipe for selective operation of the tool from surface level when the tool is in a wellbore. The tool comprises a controller electrically powered by a power source separate from surface level, a first sensor of the controller to detect a dynamic variable of the tool in the wellbore and produce an output signal dependent thereon; a second sensor of the controller to detect a mechanical signal transmitted from an operator at surface level; a motor driven by the power source under the control of the controller when said mechanical signal is received; and an actuator driven by the motor to actuate the tool; wherein the controller switches between at least two states in response to changes in said dynamic variable, only in said second state the controller being receptive to said mechanical signal from the operator to drive the motor. | 12-22-2011 |
Andy Ollerenshaw, Sheffield GB
Patent application number | Description | Published |
---|---|---|
20120193152 | CUTTING TOOL INSERTS - An insert ( | 08-02-2012 |
Jeremy Ollerenshaw, Alpharetta, GA US
Patent application number | Description | Published |
---|---|---|
20140287019 | Implantable Devices for Delivery of Bioactive Agents - An implantable delivery device and method for utilizing the device to delivery a bioactive agent to a subject in need thereof is described. The device includes a pattern of structures fabricated on a surface of the device to form a nanotopography. A random or non-random pattern of structures may be fabricated such as a complex pattern including structures of differing sizes and/or shapes. The device may be located adjacent tissue such as an endovascular implant or a perivascular implant, and may deliver the bioactive agent without triggering an immune or foreign body response to the bioactive agent. | 09-25-2014 |