Patent application number | Description | Published |
20080276620 | METHOD OF OPERATING A GAS TURBINE ENGINE - A method of operating a gas turbine engine having a rotatable turbine shaft with an electric machine mounted to the shaft. The method includes providing supplemental acceleration and/or deceleration of the turbine shaft of the gas turbine engine through the use of the electric machine operated as an electric motor and/or an electric generator, in order to avoid an undesirable engine speed range during engine operation. | 11-13-2008 |
20090162190 | Centrifugal Impeller With Internal Heating - An internal heating arrangement for a centrifugal impeller for a gas turbine engine is provided having at least one heating passage extending through into the rotor for directing air bled from the rotor exit along the backface and forwardly through the impeller. | 06-25-2009 |
20100290903 | TURBOFAN MOUNTING SYSTEM - A gas turbine engine has a rear mounting assembly incorporating a mounting apparatus attached to a bypass duct wall with a link device for transferring core portion related inertia-induced loads, from an MTF of the core portion in a short circuit across an annular bypass air passage to the bypass duct wall. | 11-18-2010 |
20120141294 | GAS TURBINE ROTOR CONTAINMENT - A gas turbine engine has a spool including compressor and turbine rotors connected by a first shaft. The first shaft extends concentrically around a second shaft. The first shaft forward end has a portion with an inner diameter of close tolerance with the second shaft. The second shaft has a region of enlarged diameter located axially aft of the compressor rotor but axially forward of the forward end of the first shaft. The region of enlarged diameter has a diameter greater than the inner diameter of the forward end portion of the first shaft to cause the region of enlarged diameter of the second shaft to engage the first shaft in interference in the event that the second shaft is moved axially aft relative to the first shaft more than a pre-selected axial distance. | 06-07-2012 |
20140255179 | LOW PROFILE VANE RETENTION - A gas turbine having an annular casing with a series of circumferentially spaced openings defined therethrough; a plurality of vanes extending radially inwardly though respective casing openings, an outer end of the vanes projecting radially outwardly from the casing through the respective openings and located within the respective openings by grommets, and an inner end of the vanes being mounted to an inner portion of the casing; a flexible, segmented strap extending around the annular casing, surrounding the projecting outer ends of the vanes; and a spring radially loading the flexible strap configured to apply a tension force to the flexible strap. | 09-11-2014 |
Patent application number | Description | Published |
20140114480 | Methods, Devices, and Systems for Non-Mechanically Restricting and/or Programming Movement of a Tool of a Manipulator Along a Single Axis - Methods, devices (such as computer readable media), and systems (such as computer systems) for performing movements of a tool of a medical robot along a single axis that are achieved by electronically limiting the medical robot's movement to produce movement of the tool along the single axis rather than mechanically restricting the medical robot's movement to produce the single axis movement. The tool's movement will be along the single axis even if a user is moving an input device linked to the medical robot in other axes during the single axis movement. In addition, techniques are disclosed for automating the single axis movement such that it can be programmed to stop at a target location and start at or near a second (e.g., starting) location, which is useful for a procedure such as a brain biopsy, breast biopsy or implantation, and such that a user can execute a command instructing the medical robot to perform the movement without the need for the user to manipulate an input device to cause real-time responsive movement of the medical robot. | 04-24-2014 |
20140142593 | Frame Mapping and Force Feedback Methods, Devices and Systems - Methods, devices, and systems for controlling movement of a slave manipulator by an operator controlling a master manipulator in a way that the motion of that slave manipulator can be presented via a display to the operator such that the displayed position of the slave manipulator is intuitive to the operator, regardless of the actual position and orientation of the slave manipulator. Methods, devices, and systems relating to force feedback associated with medical robotic procedures. | 05-22-2014 |
Patent application number | Description | Published |
20100063630 | MICROSURGICAL ROBOT SYSTEM - A robot system for use in surgical procedures has two movable arms each carried on a wheeled base with each arm having a six of degrees of freedom of movement and an end effector which can be rolled about its axis and an actuator which can slide along the axis for operating different tools adapted to be supported by the effector. Each end effector including optical force sensors for detecting forces applied to the tool by engagement with the part of the patient. A microscope is located at a position for viewing the part of the patient. The position of the tool tip can be digitized relative to fiducial markers visible in an MRI experiment. The workstation and control system has a pair of hand-controllers simultaneously manipulated by an operator to control movement of a respective one or both of the arms. The image from the microscope is displayed on a monitor in 2D and stereoscopically on a microscope viewer. A second MRI display shows an image of the part of the patient the real-time location of the tool. The robot is MRI compatible and can be configured to operate within a closed magnet bore. The arms are driven about vertical and horizontal axes by piezoelectric motors. | 03-11-2010 |
20100174410 | METHODS, DEVICES, AND SYSTEMS FOR AUTMATED MOVEMENTS INVOLVING MEDICAL ROBOTS - Methods, devices (such as computer readable media), and systems (such as computer systems) for defining and executing automated movements using robotic arms (such as robotic arms configured for use in performing surgical procedures), so that a remotely-located surgeon is relieved from causing the robotic arm to perform the automated movement through movement of an input device such as a hand controller. | 07-08-2010 |
20100198402 | METHODS, DEVICES, AND SYSTEMS FOR NON-MECHANICALLY RESTRICTING AND/OR PROGRAMMING MOVEMENT OF A TOOL OF A MANIPULATOR ALONG A SINGLE AXIS - Methods, devices (such as computer readable media), and systems (such as computer systems) for performing movements of a tool of a medical robot along a single axis that are achieved by electronically limiting the medical robot's movement to produce movement of the tool along the single axis rather than mechanically restricting the medical robot's movement to produce the single axis movement. The tool's movement will be along the single axis even if a user is moving an input device linked to the medical robot in other axes during the single axis movement. In addition, techniques are disclosed for automating the single axis movement such that it can be programmed to stop at a target location and start at or near a second (e.g., starting) location, which is useful for a procedure such as a brain biopsy, breast biopsy or implantation, and such that a user can execute a command instructing the medical robot to perform the movement without the need for the user to manipulate an input device to cause real-time responsive movement of the medical robot. | 08-05-2010 |
20100245543 | MRI COMPATIBLE CAMERA THAT INCLUDES A LIGHT EMITTING DIODE FOR ILLUMINATING A SITE - Systems and methods of using MR-compatible cameras to view magnetic resonance imaging procedures. The MR-compatible camera systems may include a casing with at least two openings, including one oriented to permit a camera to view a site, and another opening oriented to permit a light source to illuminate a portion of the site. The camera systems may be used with either closed bore or open bore MRI systems. | 09-30-2010 |
20100286669 | DEVICES FOR INTERFACING BETWEEN MANIPULATORS AND SURGICAL TOOLS - A device, system and method for interfacing between an end effector of a manipulator and a surgical tool. Embodiments may include an upper tool holder element and a lower tool holder element. Embodiments may also include a drape between the end effector and the manipulator. Embodiments may also include two force sensors and a coupling arranged in a force sensor system for use with an end effector that includes a tool roll driver. | 11-11-2010 |
20100296723 | Methods, Devices, and Systems Useful in Registration - Methods, devices, and systems for use in accomplishing registration of a patient to a robot to facilitate image guided surgical procedures, such as stereotactic procedures. | 11-25-2010 |
20110160745 | Frame Mapping and Force Feedback Methods, Devices and Systems - Methods, devices, and systems for controlling movement of a slave manipulator by an operator controlling a master manipulator in a way that the motion of that slave manipulator can be presented via a display to the operator such that the displayed position of the slave manipulator is intuitive to the operator, regardless of the actual position and orientation of the slave manipulator. Methods, devices, and systems relating to force feedback associated with medical robotic procedures. | 06-30-2011 |
20140155735 | Methods, Devices, And Systems Useful In Registration - Methods, devices, and systems for use in accomplishing registration of a patient to a robot to facilitate image guided surgical procedures, such as stereotactic procedures. | 06-05-2014 |