MOOG, INC. Patent applications |
Patent application number | Title | Published |
20150381009 | LAWN MOWER MOTOR AND DRIVE - A combined d.c. brushless motor and drive control assembly for a rotary mower includes a hollow motor housing, a cover removably attached to an open rear end of the housing, and an end shield mounted to an internal shelf of the housing adjacent its rear end. The end shield and a front wall of the housing define rotary bearing seats for a motor drive shaft. An electronic circuit board including motor drive electronics and feedback sensors is mounted to the housing or to the cover, and is positioned at an axial location between the internal shelf of the housing and the rear wall of the cover. The housing is configured for mounting on a shroud of the rotary mower such that at least the removable cover is above the shroud and easily accessible, whereby repair or replacement of the electronic circuit board is facilitated. | 12-31-2015 |
20150346043 | HIGH SENSITIVITY, LOAD ALLEVIATING LOAD SENSOR FOR STRUT APPLICATION - A load-sensing strut has a main body ( | 12-03-2015 |
20150111650 | NON-CHATTERING BALL DETENT TORQUE LIMITER - A ball-detent torque-limiting assembly has breakout means for maintaining an axial separation distance between opposing pocketed surfaces of the assembly once the primary balls of the assembly have rolled out of their pockets, wherein the axial separation distance maintained by the breakout means is at least as great as the diameter of the balls. The breakout means may include a plurality of secondary balls deployed in a breakout event. The breakout means assumes the axially directed spring load that urges the opposing pocketed surfaces together, thereby preventing the primary balls from entering and exiting the pockets in quick and violent succession following breakout and avoiding damage to the torque-limiting assembly. The torque-limiting assembly is resettable by counter-rotation following a breakout event. | 04-23-2015 |
20150083256 | DIRECT DRIVE ROTARY VALVE - A rotary valve comprises a bushing and a cylindrical spool rotatably received by the bushing. The rotary valve avoids redundant control edge pairs by having exactly one first supply edge pair (P-C1) for controlling a first fluid supply path, exactly one second supply edge pair (P-C2) for controlling a second fluid supply path, exactly one first return edge pair (C2-R1) for controlling a first fluid return path, and exactly one second return edge pair (C1-R2) for controlling a second fluid return path. A first angle between the first supply edge pair and the first return edge pair, and a second angle between the second supply edge pair and the second return edge pair, are each greater than or equal to 120 degrees and less than 180 degrees. Geometric simplicity is achieved by tolerating a limited degree of force imbalance in valve operation. | 03-26-2015 |
20150081102 | ACTUATOR SYSTEM AND METHOD - An actuator system comprising a shared link ( | 03-19-2015 |
20150069278 | ELECTRO-HYDRAULIC SERVO VALVE | 03-12-2015 |
20150027226 | REAL-TIME AIRCRAFT STATUS DETECTION SYSTEM AND METHOD - A low power method for determining whether a cargo destined for air transport is in a flying state having the steps of: providing a housing for attachment to a cargo the housing having: an accelerometer for detecting a linear acceleration, a gyroscope for detecting an angular rate, a controller measuring a linear acceleration with the accelerometer, measuring an angular rate with the gyroscope, providing the measured linear acceleration and angular rate to the controller, and generating a flight status output signal indicating whether the housing is in a flying state as a function of the linear acceleration signal and angular rate signal. | 01-29-2015 |
20140354379 | INTEGRATED ROTARY JOINT ASSEMBLY WITH INTERNAL TEMPERATURE-AFFECTING ELEMENT - An improved slip-ring has a stator and a rotor, and includes a brush having a proximal end mounted on one of the stator and rotor and having a distal end engaging the other of the stator and rotor. The brush is adapted to convey electrical signals across the interface between the stator and rotor. The improvement includes: the rotor including a support member ( | 12-04-2014 |
20140341759 | MOTORIZED BLOWER ASSEMBLIES, AND METHODS OF MAKING SAME - A motorized blower assembly ( | 11-20-2014 |
20140260722 | ROTARY ACTUATOR - An actuator system having a controlled element configured for rotary movement about a first axis relative to a reference structure; a linkage system between the element and reference structure; a first actuator and a second actuator configured to power a first degree of freedom and an independent second degree of freedom of the linkage system, respectively; the linkage system having a first link configured for rotary movement about a second axis not coincident to the first axis and second link configured for rotary movement about a third axis; the linkage system configured such that a first angle of rotation may be driven independently of a second angle of rotation between said first link and said reference structure; wherein one of the first or second actuators is configured and arranged to drive rotation of the element about the first axis when the other is operatively locked. | 09-18-2014 |
20140246279 | DYNAMIC BRAKE - A power-off brake for stopping a rotating shaft comprises a solenoid including a coil and armature, an opposing plate axially spaced from the armature, and a ball carrier rotor between the armature and opposing plate. The ball carrier rotor rotates with the shaft and carries spherical balls in recesses angularly space about the shaft. The armature and opposing plate have respective braking surfaces. In one embodiment, at least one braking surface is ramped to urge the plurality of balls radially outward against an internal surface of a surrounding outer race as the armature is forced toward the opposing plate under spring loading when current to the solenoid coil is shut off. In another embodiment, the braking surfaces are not ramped, such that the balls are merely clamped between the braking surfaces upon solenoid deactivation. Increased rolling friction stops rotation of the ball carrier rotor and the shaft without problematic wear. | 09-04-2014 |
20140234024 | SURFACE MOUNT WEDGE BARRIER - The present disclosure relates to a system including an anchor configured to be disposed within a foundation, wherein an upper side of the anchor is configured to be exposed at a surface of the foundation and a wedge-style anti-ram security barrier configured to mechanically couple to the anchor and mount to the surface of the foundation. | 08-21-2014 |
20140165757 | POSITIONING DEVICE - An adjustable head for use in connection with a tripod including a housing and an internal pan adjustment gear configured to rotate the housing around a first axis and a tilt adjustment gear configured to rotate the housing around a second axis, perpendicular to the first axis. A pan adjustment knob is connected with respect to the pan adjustment gear that permits a continuous and infinite coarse adjustment and a continuous and infinite fine adjustment of the pan adjustment gear, wherein locking the coarse adjustment enables the fine adjustment. | 06-19-2014 |
20140152201 | ELECTRIC MOTOR CLAMPING SYSTEM - An electric motor system having a power supply, an electric motor connected to the power supply, an object driven by the motor having a range of motion and a substantially neutral position within the range of motion, a power sensor configured to sense power from the power supply, a position sensor configured to sense position of the object in at least a portion of the range of motion, an energy storage, a controller connected to the power supply and the energy storage, wherein the controller is configured to brake the motor as a function of the position sensor, the neutral position and the power sensor. | 06-05-2014 |
20140145033 | TENSIONING DEVICE FOR AIRCRAFT REFUELING BOOM HOIST - A power spring passively applies tension to a cable connected to an aircraft refueling boom. The power spring has a first end engaging a fixed arbor and second end engaging a rotatable spooling drum around which a portion of the cable is wound. The power spring biases the drum to rotate in a winding direction to apply tension to the cable, and the power spring stores energy when the drum rotates in an unwinding direction. The power spring may be located inside the drum or outside the drum. The drum may be actively driven by a motor that may be uncoupled from the drum to permit freewheeling rotation of the drum, wherein the power spring continues to apply tension to the cable. The invention eliminates reliance on one or more powered motors for removing unwanted slack in the cable. | 05-29-2014 |
20140135132 | NON-CHATTERING BALL DETENT TORQUE LIMITER - The present invention improves a ball-detent torque-limiting assembly by providing breakout means for maintaining an axial separation distance between opposing pocketed surfaces of the assembly once the balls have rolled out of their pockets, wherein the axial separation distance maintained by the breakout means is at least as great as the diameter of the balls. The breakout means assumes the axially directed spring load that urges the opposing pocketed surfaces together, thereby preventing the balls from entering and exiting the pockets in quick and violent succession following breakout and avoiding damage to the torque-limiting assembly. The torque-limiting assembly is resettable by counter-rotation following a breakout event. | 05-15-2014 |
20140084527 | VIBRATION ISOLATION SYSTEM AND METHOD - A vibration isolator ( | 03-27-2014 |
20140045348 | FIBER-ON-TIP CONTACT DESIGN BRUSH ASSEMBLIES - The present invention broadly provides improvements in a slip-ring adapted to provide electrical contact between a stator and a rotor. The improved slip-ring includes a brush assembly having a brush tube mounted on the stator and having a fiber bundle composed of a number of individual fibers. The upper marginal end portions of the fibers are received in the brush tube. The lower marginal end portions of the fibers extend beyond the brush tube toward the rotor. The improvements broadly comprise: a central portion of the fibers having been removed below the brush tube such that the fibers extending below the brush tube toward the rotor are in the form of an annulus; and wherein the tangential compliance of the fiber bundle at its point of contact with the rotor is more than twice the tangential compliance of the fiber bundle if the central portion had not been removed. | 02-13-2014 |
20140023507 | CEILING FAN SYSTEM WITH BRUSHLESS MOTOR - A fan system includes a motor, a rotatable hub, and a plurality of fan blades. The motor is coupled with the hub by a hollow drive shaft, such that the drive system of the fan system is gearless. The motor is controlled by a PFC-based control module, which is in communication with sensors that are configured to sense parameters associated with operation of the fan system. The control module is configured to react in certain ways to certain conditions detected by the sensors, such that the fan system uses feedback-based control algorithms. A remote control panel is in communication with the control module. The remote control panel is operable to display fault conditions detected by the sensors. Blade retainers prevent fan blades from falling when a fan blade breaks free from the hub. Pins prevent the hub from falling when the hub breaks free from the rotor. | 01-23-2014 |
20130333894 | SUBSEA ACTUATION SYSTEM - A subsea drilling, production or processing actuation system comprising a variable speed electric motor ( | 12-19-2013 |
20130326969 | STRUCTURAL DAMPING SYSTEM AND METHOD - A tuned mass damper may be formed using one or more rotary magnetic dampers ( | 12-12-2013 |
20120237198 | FIBER OPTIC ROTARY JOINTS, METHODS PRACTICED THEREBY, AND FIBER OPTIC DEVICES - This invention provides a fiber optic rotary joint ( | 09-20-2012 |
20110257909 | INERTIALLY REFERENCED SENSOR SYSTEM AND METHOD - An inertially referenced motion sensor that may be rigidly coupled to a relative motion sensor. Signals from the relative motion sensor and inertially referenced motion sensor may be combined to produce an inertially referenced relative signal. | 10-20-2011 |
20110232474 | TWO-STAGE SUBMERSIBLE ACTUATORS - The present invention provides an improved two-stage actuator ( | 09-29-2011 |
20110198950 | STEPPING MOTORS WITH SMALL STEP INTERVALS - An improved motor ( | 08-18-2011 |
20110194217 | POWER SUPPLIES WITH TESTABLE CURRENT LIMITERS, AND METHODS OF OPERATING SAME - A power supply ( | 08-11-2011 |
20110156506 | PERMANENT MAGNET-TYPE STEPPING MOTORS - A permanent magnet-type stepping motor broadly includes: a movable member (e.g., a rotor) having a number of magnetic poles on a surface thereof, with adjacent poles being of opposite polarity, the number of poles being a function of a constant, the number of phases and a desired step interval; and a stationary member (e.g., a stator) having a number of equally-spaced teeth arranged to face toward said movable member surface, each of said teeth having a plurality of fingers arranged to face toward said movable member surface, the number of said teeth being a whole integer that is a function of a constant, the number of said poles, the number of said fingers on each stator tooth, and the number of phases. | 06-30-2011 |
20110094848 | METHOD AND APPARATUS FOR DETERMINING THE APPARENT OPERATIONAL INTEGRITY OF A NO-BACK DEVICE - This invention provides an improvement in a no-back device having a ball screw connected to a variable load of reversible polarity (±L) and having a portion penetrating a housing. The device includes a braking mechanism acting between the housing and the ball screw for producing a force that resists movement of the ball screw in the direction of an “aiding” load, but does not substantially resist movement of the ball screw in the direction of an “opposing” load. The improvement broadly includes: a first spring acting between the housing and the braking mechanism for exerting a first preload force (F1) on the braking mechanism for simulating the application of an external load on the ball screw in one of the directions; whereby the apparent operational integrity of the no-back device may be checked when no external load is applied to the ball screw. In use, the apparatus performs the steps of: providing a first spring; causing the first spring to exert a first preload force (F1) on the braking mechanism; determining the actual torque (Ta) required to move the ball screw while the aircraft is on the ground; comparing the actual torque with a theoretical torque (Tt) required to move the ball screw; and inferring that the no-back device is not operating correctly if the actual torque is less than the theoretical torque; thereby to test the apparent operational integrity of the no-back device when the aircraft is on the ground. | 04-28-2011 |
20110026938 | OPTICAL ROTARY JOINTS, METHODS OF MOUNTING SAME IN A PROPERLY-ALIGNED MANNER, AND OPTICAL RELECTOR ASSEMBLIES FOR USE THEREIN - The present invention relates generally to optical rotary joints ( | 02-03-2011 |