Patents by Inventor Allan Stewart
Allan Stewart has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150339405Abstract: In one embodiment, a method includes accessing a social graph comprising nodes and a edges connecting the nodes, receiving from a first user a query inputted at a search client, the search client being associated with context data from a page associated with the search client, such that the context data identifies one or more nodes associated with the page, generating search results corresponding to the query, wherein each of the search results corresponds to a node, and scoring the search results based at least in part on the context data associated with the search client. The context data may identify a social context of the page, which can include tags, comments, likes, commenters, and the like.Type: ApplicationFiled: May 21, 2014Publication date: November 26, 2015Applicant: Facebook, Inc.Inventors: Abhinav Vora, Allan Stewart
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Patent number: 9157286Abstract: A portable pipe handling apparatus and method includes providing a support structure adapted to support a pipe stand along a pipe stand building axis associated therewith, and inclining the pipe stand building axis so that an upper end of the axis is adjacent a top drive in a drilling rig mast and so that the pipe stand translation trajectory which is substantially co-axial with the pipe stand building axis intersects a hand-off window between the top drive and the pipe stand building axis.Type: GrantFiled: October 11, 2012Date of Patent: October 13, 2015Assignee: Warrier Rig LtdInventors: Allan Stewart Richardson, Monte Neil Wright
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Publication number: 20150204141Abstract: A distributed drive includes a frame, a main sprocket, and a plurality of drive assemblies mounted therearound for rotation of the main sprocket. The main sprocket has a circumferential drive rim around which the drive assemblies are mounted in driving engagement with the drive rim so as to selectively rotate the main sprocket relative to the frame. Each drive assembly includes at least two auxiliary sprockets lying substantially in the plane of the main sprocket. An endless belt is mounted around the auxiliary sprockets so that a span of the endless belt spans between a pair of the auxiliary sprockets in an arc-of-contact with the drive rim. At least one of the two auxiliary sprockets is a selectively driven drive sprocket for selective rotation of the main sprocket.Type: ApplicationFiled: March 27, 2015Publication date: July 23, 2015Inventor: Allan Stewart RICHARDSON
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Publication number: 20150142815Abstract: When a social networking system receives a report of malicious activity, the social networking system calculates disabled connectivity score for a user reporting the activity or identified by the report. The disabled connectivity score indicates how strongly the user is associated with other objects that have been disabled by the social networking system. Hence, the disabled connectivity score provides a measure of the user's trustworthiness that is used to determine a type of action to be taken in response to the report. Examples of actions that may be taken when a report is received include ignoring the report, further reviewing the report, or taking remedial action by disabling or deleting an object maintained by the social networking system that is the subject of the report.Type: ApplicationFiled: January 26, 2015Publication date: May 21, 2015Inventors: Marion Beaufrere, Jan Smole, Rasit Onur Coskunseda, Ziad B. Traboulsi, Nasser Ahmed Al-Sherif, Allan Stewart
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Patent number: 9017194Abstract: A distributed drive includes a frame, a main sprocket, and a plurality of drive assemblies mounted therearound for rotation of the main sprocket. The main sprocket has a circumferential drive rim around which the drive assemblies are mounted in driving engagement with the drive rim so as to selectively rotate the main sprocket relative to the frame. Each drive assembly includes at least two auxiliary sprockets lying substantially in the plane of the main sprocket. An endless belt is mounted around the auxiliary sprockets so that a span of the endless belt spans between a pair of the auxiliary sprockets in an arc-of-contact with the drive rim. At least one of the two auxiliary sprockets is a selectively driven drive sprocket for selective rotation of the main sprocket.Type: GrantFiled: October 11, 2012Date of Patent: April 28, 2015Assignee: Warrior Rig Ltd.Inventor: Allan Stewart Richardson
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Patent number: 8978133Abstract: When a social networking system receives a report of malicious activity, the social networking system calculates disabled connectivity score for a user reporting the activity or identified by the report. The disabled connectivity score indicates how strongly the user is associated with other objects that have been disabled by the social networking system. Hence, the disabled connectivity score provides a measure of the user's trustworthiness that is used to determine a type of action to be taken in response to the report. Examples of actions that may be taken when a report is received include ignoring the report, further reviewing the report, or taking remedial action by disabling or deleting an object maintained by the social networking system that is the subject of the report.Type: GrantFiled: April 22, 2013Date of Patent: March 10, 2015Assignee: Facebook, Inc.Inventors: Marion Beaufrere, Jan Smole, Rasit Onur Coskunseda, Ziad B Traboulsi, Nasser Ahmed Al-Sherif, Allan Stewart
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Publication number: 20150039596Abstract: In one embodiment, a method includes accessing a set of queries of an online social network received from one or more users of the online social network, retrieving for each query a number of objects that match at least a portion of the query from one or more data stores associated with the online social network, where each object is associated with a pre-determined static-score based on a static-scoring algorithm, calculating a final-score for each retrieved object based on a final-scoring algorithm, and determining one or more revised static-scores for one or more of the retrieved objects based on a comparison of the final-scores and the static-scores of the retrieved objects.Type: ApplicationFiled: July 30, 2013Publication date: February 5, 2015Applicant: Facebook, Inc.Inventor: Allan Stewart
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Publication number: 20150039597Abstract: In one embodiment, a method includes accessing a set of queries of an online social network received from one or more users of the online social network, parsing each query using a parsing algorithm to generate a query command based on each query, each query command comprising one or more query constraints for a specified number of objects of a specified object-type as specified by parsing-configuration parameters of the parsing algorithm, retrieving the specified number of objects that match at least a portion of the query constraint from one or more data stores associated with the online social network, scoring each retrieved object based on a scoring algorithm, and generating one or more revised parsing-configuration parameters based on a comparison of the scores of the retrieved objects and the specified number of objects of the query constraints.Type: ApplicationFiled: July 30, 2013Publication date: February 5, 2015Applicant: Facebook, Inc.Inventors: Rajat Raina, Allan Stewart, Li-Tal Mashiach
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Publication number: 20140324741Abstract: A method of operation of a URL spam detection system includes: identifying a feature dimension of a user action on a social networking system to detect anomalies; extracting URL chunks from a content associated with the user action; aggregating a non-content feature of the user action along the feature dimension into a URL distribution store to produce a feature distribution for each of the URL chunks; determining whether the feature distribution of a particular URL chunk within the URL chunks exceeds an expectation threshold for the feature dimension; and classifying the particular URL chunk as an illegitimate URL when the feature distribution exceeds the expectation threshold to restrict access to a particular URL chunk on a social networking system.Type: ApplicationFiled: April 29, 2013Publication date: October 30, 2014Applicant: Facebook, Inc.Inventors: Allan Stewart, Eugene Zarakhovsky, Christopher Palow, Chetan Gowda, Brent Dorman
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Publication number: 20140317732Abstract: When a social networking system receives a report of malicious activity, the social networking system calculates disabled connectivity score for a user reporting the activity or identified by the report. The disabled connectivity score indicates how strongly the user is associated with other objects that have been disabled by the social networking system. Hence, the disabled connectivity score provides a measure of the user's trustworthiness that is used to determine a type of action to be taken in response to the report. Examples of actions that may be taken when a report is received include ignoring the report, further reviewing the report, or taking remedial action by disabling or deleting an object maintained by the social networking system that is the subject of the report.Type: ApplicationFiled: April 22, 2013Publication date: October 23, 2014Applicant: Facebook, Inc.Inventors: Marion Beaufrere, Jan Smole, Rasit Onur Coskunseda, Ziad B. Traboulsi, Nasser Ahmed Al-Sherif, Allan Stewart
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Patent number: 8863621Abstract: A power tong includes a rotor, driven by a primary drive, for spinning and torquing threaded connections of a tubular gripped in the rotor. A grip in the rotor grips the tubular. A serpentine member supplies power to actuate the grip. The serpentine member is driven by a secondary drive. The primary and secondary drives are mounted on a stator frame. The rotor is rotatably mounted to the stator frame and driven by the primary drive during continuous three hundred and sixty degrees of rotation. A fixed or backup jaw may also be mounted to the stator frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grip on the rotor grips the opposite side of the tubular joint. High torque low-rotational speed applied to the rotor torques the joint. Low torque high-rotational speed applied to the rotor spins the joint.Type: GrantFiled: February 6, 2012Date of Patent: October 21, 2014Inventor: Allan Stewart Richardson
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Publication number: 20140283653Abstract: A power tong includes a rotor, driven by a primary drive, for spinning and torquing threaded connections of a tubular gripped in the rotor. A grip in the rotor grips the tubular. A serpentine member supplies power to actuate the grip. The serpentine member is driven by a secondary drive. The primary and secondary drives are mounted on a stator frame. The rotor is rotatably mounted to the stator frame and driven by the primary drive during continuous three hundred and sixty degrees of rotation. A fixed or backup jaw may also be mounted to the stator frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grip on the rotor grips the opposite side of the tubular joint. High torque low-rotational speed applied to the rotor torques the joint. Low torque high-rotational speed applied to the rotor spins the joint.Type: ApplicationFiled: June 5, 2014Publication date: September 25, 2014Inventor: Allan Stewart Richardson
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Publication number: 20140131052Abstract: An integrated casing drive system combines a top drive having a rotary drive portion, a pipe handler having a casing gripper wherein the pipe handler is rotationally mounted to the top drive, and a selectively actuable casing drive lock for locking the rotary drive portion to the pipe handler.Type: ApplicationFiled: October 25, 2013Publication date: May 15, 2014Applicant: WARRIOR RIG LTD.Inventor: ALLAN STEWART RICHARDSON
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Publication number: 20130284774Abstract: A belt mounted sleever bar holder includes a belt receiving member of flexible material formed into a belt receiving loop and designed to receive a belt therethrough so as to securely hold the belt receiving member on a belt. A metal mounting plate is fixedly attached to an outer surface of the belt receiving member and an L-shaped metal sleever bar receiving member with a substantially vertically oriented arm and a substantially horizontally oriented arm is pivotally attached parallel with an outer surface of the mounting plate for limited rotary movements of the vertical arm relative to the mounting plate. The horizontally oriented arm includes a sleever bar receiving opening therethrough.Type: ApplicationFiled: July 1, 2013Publication date: October 31, 2013Inventor: Tucson Allan Stewart
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Publication number: 20130254857Abstract: User login information submitted as part of an attempt to log into a computer system is evaluated for unauthorized or illegitimate use based on indicators of suspicious behavior. Example indicators of suspicious behavior include whether the login information is known to have been compromised, whether the login attempt originates from a network source or a physical source that has previously originated an attempt to log in using login information known to have been compromised, and whether multiple login attempts using the login information from multiple users has originated from the source. A suspicion index can be calculated based on the presence of the indicators of suspicious behavior. The system can require enhanced authentication based on the measurement of suspicious behavior.Type: ApplicationFiled: March 20, 2012Publication date: September 26, 2013Inventors: Andrei Bajenov, Jonathan H. Frank, Matthew Knight Jones, Alok Mengharajani, Christopher William Palow, Allan Stewart
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Patent number: 8490845Abstract: A belt mounted sleever bar holder includes a belt receiving member of flexible material formed into a belt receiving loop and designed to receive a belt therethrough so as to securely hold the belt receiving member on a belt. A metal mounting plate is fixedly attached to an outer surface of the belt receiving member and an L-shaped metal sleever bar receiving member with a substantially vertically oriented arm and a substantially horizontally oriented arm is pivotally attached parallel with an outer surface of the mounting plate for limited rotary movements of the vertical arm relative to the mounting plate. The horizontally oriented arm includes a sleever bar receiving opening therethrough.Type: GrantFiled: February 4, 2010Date of Patent: July 23, 2013Inventor: Tucson Allan Stewart
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Publication number: 20130132287Abstract: Automatically rating comparable properties by accessing property data and comparable assessment information, in which a regression is performed, on to model the relationship between the comparable-appropriateness of the property data and explanatory variables. A set of comparable-appropriateness values for each of the plurality of comparable properties based upon differences in the explanatory variables between the subject property and each of the plurality of comparable properties are chosen and an assessment is outputted.Type: ApplicationFiled: November 18, 2011Publication date: May 23, 2013Applicant: Fannie MaeInventors: WenXiong W. Yao, Adam Davis, Hamilton Fout, Eric Rosenblatt, Mark Allan Stewart
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Publication number: 20120272792Abstract: A power tong continuously rotates tubulars for spinning and torquing threaded connections. Continuous rotation is achieved through a rotating jaw having a grip that grips the tubular and continuously rotates with it. A serpentine supplies directly or indirectly power to actuate the grip. The serpentine is driven by a secondary drive mounted on a fixed frame. The rotating jaw is rotatably mounted to the fixed frame and driven during continuous three hundred and sixty degrees of rotation by a primary drive, mounted on the fixed frame. A fixed jaw may also be mounted to the frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grip on the rotating jaw grips the opposite second side of the tubular joint. High torque low-rotational speed applied to the rotating jaw torques the joint. Low torque high-rotational speed applied to the rotating jaw spins the joint.Type: ApplicationFiled: February 6, 2012Publication date: November 1, 2012Inventor: Allan Stewart Richardson
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Patent number: 8109179Abstract: A power tong continuously rotates tubulars for spinning and torquing threaded connections. Continuous rotation is achieved through a rotating jaw having grippers that grip the tubular and continuously rotate with it. Hydraulic and electrical power necessary for actuating the grippers is generated on board. A serpentine belt system turns the motors of the on-board hydraulic power unit and electric generators to supply the grippers with hydraulic and electrical power. The serpentine belt system is driven by a secondary drive mounted on a fixed frame. The rotating jaw is rotatably mounted to the fixed frame and driven during continuous three hundred and sixty degrees of rotation by a primary drive, mounted on the fixed frame. A fixed jaw is also mounted to the frame. Tubular grippers on the fixed jaw grip a first side of a tubular joint. The grippers on the rotating jaw grip the opposite second side of the tubular joint. High torque low-rotational speed applied to the rotating jaw torques the joint.Type: GrantFiled: February 12, 2009Date of Patent: February 7, 2012Inventor: Allan Stewart Richardson
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Publication number: 20110306807Abstract: The invention relates to a method and apparatus to recover and purify methanol from gases produced in the digester during the kraft pulping process. The gas is typically recovered as a foul gas (called stripper off gas or SOG) comprising methanol, water and various other contaminants. The gas is then treated with successive decanting and distillation steps to remove impurities, thereby producing highly purified methanol.Type: ApplicationFiled: February 12, 2009Publication date: December 15, 2011Applicant: A.H. Lundberg Systems LimitedInventors: Bruce Der, Allan Stewart Jensen