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137results about How to "Minimize deflection" patented technology

Method of optimizing cardiac resynchronization therapy using sensor signals of septal wall motion

The present invention relates to monitoring septal wall motion of the atrial and / or ventricular chambers of a heart for optimizing cardiac pacing intervals based on signals derived from said wall motion. At least one lead of medical device is equipped with a motion sensor adapted to couple to septal tissue. The device receives and may post-process (e.g., suitably filter, rectify and / or integrate) motion signals to determine acceleration, velocity or displacement. During pacing interval optimization the wall motion is measured for many pacing intervals and the pacing interval setting(s) that produce minimal wall motion are implemented for therapy delivery. In addition, the present invention provides methods for periodically determining whether to cease or resume delivery of a bi-ventricular pacing therapy to a patient that may have experienced beneficial reverse remodeling of the heart.
Owner:MEDTRONIC INC

Intraocular lens inserter

An intraocular lens (IOL) inserter and method of use ensure that an artificial intraocular lens is controllably ejected from a cartridge and into a patient's eye by using successive, predefined detent positions. One embodiment has a distal pivotal portion that can be pivoted to a desired angle as a mover advances the IOL into the eye. A detent controls the motion of the mover. In one embodiment, the detent includes a longitudinally extending component with a plurality of stair steps, so that a face of each stair step engages the housing at each different predefined detent position. Other embodiments include at least one orifice in the housing, so that when the orifice is aligned with a pin or protrusion, it engages the orifice to define a detent step. Another embodiment includes a spring-loaded collar that biases a pin into a predefined detent step.
Owner:DUSEK VACLAV +1

Electrostriction Devices and Methods for Assisted Magnetic Navigation

An apparatus and method for interventional navigation within a subject's body is provided in which a medical device having at least one electrostrictive element is adapted to cause the distal end of the medical device to bend in a given direction for improving navigation. The medical device may further comprise at least one magnetically responsive element on the distal end, which may be oriented in the approximate direction of a magnetic field that is applied to the subjects body. At least one method for navigating a medical device though a subject's body is provided, by changing the direction of an applied magnetic field to align a magnetically responsive element on the distal end for orienting the distal end, and by applying a voltage to at least one electrostrictive element disposed in the distal portion of the device for causing the distal end to change orientation from that achieved by application of the magnetic field alone.
Owner:STEREOTAXIS

Flush syringe having compressible plunger

InactiveUS20060100591A1Reduces and eliminates compressionReducing and eliminating refluxInfusion syringesMedical devicesRefluxBiomedical engineering
An I.V. flush syringe assembly includes a barrel having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end with a passageway therethrough in fluid communication with the chamber. An elongate plunger having a proximal end, a distal end and a stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel for drawing fluid into and out of the chamber by movement of the stopper relative to the barrel. The plunger includes anti-reflux structure for minimizing stopper deflection when fluid has been delivered from the chamber and the stopper is being forced against the distal end of the chamber.
Owner:ALHEIDT THOMAS A +2

Tonneau cover apparatus having rear bar lock

InactiveUS6851738B1Maximize and simplify securementReduce areaBuilding locksTents/canopiesPickup truckBraced frame
A tonneau cover apparatus for attaching a flexible cover about a cargo box of a vehicle, preferably a pickup truck. The apparatus preferably includes, a support frame removably attached about the perimeter of a cargo box of the vehicle, an elongated end plate attached to an end of the flexible cover, an end plate engagement member attached to the support frame, preferably one on each side of the support frame, and a locking member movably attached to the end plate. The end plate is preferably attached to an end of the flexible cover and is configured to cooperatively engage and pivot with respect to the end plate engagement member or members into and out of a fixed stretching position wherein the flexible cover can be correspondingly be tensed and relaxed. The end plate may be retained in the fixed stretching position by the locking member, in alternate embodiments, a plurality of locking members are provided, preferably locking members that slide within a channel in the end plate. In preferred embodiments the locking member or members are spring biased toward a locking position where the locking member engages a flange of the support frame to prevent the end plate from moving out of the fixed stretching position.
Owner:AGRI COVER

Axial flux brushless permanent magnet electrical machine rotor

An axial flux brushless permanent magnet electrical machine having a stator and at least one rotor. The rotor includes a Halbach array of magnets with at least four magnets per magnetic cycle. The rotor magnets are contained within pockets in the rotor. The pockets are formed with magnet pocket walls being radial walls, active surface walls, and / or inactive surface walls where the walls retain the magnets within the pockets.
Owner:LAUNCHPOINT ELECTRIC PROPULSION SYST INC

Pallet with flexible tensile reinforcement

A reinforced pallet (20) and method for making the same are disclosed. The pallet (20) includes a body (28) having a pair of laterally spaced apart edge portions (56) with a central span (60) extending therebetween. A flexible tensile member (26) extends between the edge portions (56) and generally beneath the central span (60). The tensile member (26) may be in the form of a mesh affixed between upper and lower decks (22,24) of the pallet (20). When the edge portions (56) of the pallet (20) are simply supported and a load is place atop the pallet (20), the central span (60) of the pallet (20) will vertically deflect in response to the load. The central span (60) will bear upon the tensile member (26) with the tensile member providing support against deflection. A method for retrofitting a pallet (200) includes adding a tensile member (210) to the pallet (200) to reduce the amount of deflection of the pallet (200) when simply supported in response to a load placed atop the pallet (200).
Owner:CADILLAC PROD

Planetary gear reduction system

A planetary gear reduction system has a sun gear, a plurality of planet gears, a ring gear, and a planet carrier. The planet carrier has a first plate supporting one ends of planet shafts supporting the planet gears, a second plate supporting the other ends of the planet shafts, and a cylindrical drum connecting the first and second plates. The first plate has first portions supporting the one ends of the planet shafts; second portions connecting the first plate to the drum, the first and second portions being provided alternately in a circumferential direction; first cutouts each defined between the neighboring first and second portions, the first cutouts each extending radially inwardly from a circumferential edge thereof to a position adjacent a circle passing centers of the planet shafts; and second cutouts each defined radially inward of the second portion and between the neighboring two first portions, the second cutouts each extending radially inwardly from a first region outside the circle and a second region inside the circle.
Owner:KAWASAKI HEAVY IND LTD

Stress isolated pressure sensing die, sensor assembly inluding said die and methods for manufacturing said die and said assembly

The invention concerns a pressure sensing die to be mounted on a base, comprising: a diaphragm structure with a deflectable pressure sensing diaphragm whose deflection is representative of the pressure and sensing elements for detecting the deflection of the sensing diaphragm; a pedestal supporting the diaphragm structure; wherein the pedestal is a composite pedestal comprising top and bottom platforms connected by at least one small link having a mean cross-section smaller than the cross-section of the top platform, said small link isolating at least some of the stresses, produced by the mounting of the pressure sensing die on the base, from said deflectable pressure sensing diaphragm.
Owner:AUXITROL

Provisional prosthetic component formed of multiple materials

The present invention relates to provisional prosthetic components for a medical device and the surgical methods for utilizing the same. In one embodiment, the provisional prosthetic component includes a first portion and a core. The first portion is capable of mating with another prosthetic component. The first portion of the provisional prosthetic component may have a scratch hardness which is less than the scratch hardness of the prosthetic component. This allows for the first portion to be placed in mating engagement with the prosthetic component without scratching or damaging the junction of the prosthetic component. Additionally, the core of the provisional prosthetic component may have a scratch hardness greater than the scratch hardness of the first portion of the provisional prosthetic component and / or a stiffness sufficient to minimize deflection of the provisional prosthetic component during trial reduction and range of motion testing.
Owner:ZIMMER TECH INC

Head restraint for seat

A vehicle seat includes a head restraint which limits the magnitude of neck deflection of a vehicle occupant during a rear impact collision. The head restraint includes a support member attached to the top of a head restraint post. The support member includes a convex surface shaped to substantially conform to the profile of an occupant's head and neck. The support member is covered by a resilient material such as foam. The foam thickness is reduced due to the presence of the support member. Reduced foam thickness in addition to the shape of the support member provides for reduced occupant neck deflection during a rear impact collision.
Owner:LEAR CORP

Air cleaner assembly and filter element providing improved dynamic wall stiffness

InactiveUS20130305930A1Reduce wall noiseReduce noiseCombination devicesAuxillary pretreatmentEngineeringWall stiffness
An air cleaner assembly and a filter element reduce wall noise by rigidly coupling the movement of opposing air cleaner housing sidewalls through the installed filter element. The sidewalls are rigidly coupled through the filter element with the sidewalls coupled to move together in unison such that wall deflection forces created by the pressure pulsations tend to cancel each resulting in improved dynamic stiffening of the air cleaner walls and reduced wall noise.
Owner:MANN HUMMEL GMBH

Boring Cutter

InactiveUS20150328696A1Minimize tool deflectionMinimize drilling vibrationTransportation and packagingMulti-purpose machinesFluteEngineering
A boring cutter includes a tool body and a cutting insert. The tool body includes a shaft handle and a cutting end, and defines a circumferential face extended between the shaft handle and the cutting end. The tool body further has an insert pocket extended to the cutting end to secure the cutting insert at the insert pocket, and a flute formed on the circumferential face to communicate with the insert pocket. The tool body further has a cooling channel extended through the shaft handle to the cutting end, and a plurality of discharging chambers spacedly formed on the circumferential face to communicate with the cooling channel. During a drilling process, cooling fluid is released to the discharging chambers from the cooling channel to create a pressure between the tool body and an inner wall of a hole of a workpiece to prevent the tool deflection and drilling vibration.
Owner:ZHUZHOU CEMENTED CARBIDE CUTTING TOOLS CO LTD

Helical cutting insert with progressive cutting edge

An indexable, helical cutting insert includes at least one axial clearance slash extending from a bottom surface to one of said side walls forming a wiper on an edge of the axial clearance slash. In another embodiment, the cutting insert includes at least one inside cutting edge that extends outwardly a distance from the side wall. In another embodiment, the helical cutting insert includes at least one progressive cutting edge. In another embodiment, the cutting insert includes at least one helical cutting edge that is curved inwardly to enable the cutting insert to perform machining operations on cutters having different diameters.
Owner:KENNAMETAL INC

Flush syringe having compressible plunger

ActiveUS20080221531A1Reduces and eliminates compressionReducing and eliminating refluxInfusion syringesMedical devicesRefluxGun barrel
An I.V. flush syringe assembly includes a barrel having an inside surface defining a chamber for retaining fluid, an open proximal end and a distal end with a passageway therethrough in fluid communication with the chamber. An elongate plunger having a proximal end, a distal end and a stopper is slidably positioned in fluid-tight engagement with the inside surface of the barrel for drawing fluid into and out of the chamber by movement of the stopper relative to the barrel. The plunger includes anti-reflux structure for minimizing stopper deflection when fluid has been delivered from the chamber and the stopper is being forced against the distal end of the chamber.
Owner:BECTON DICKINSON & CO

Stress isolated pressure sensing die, sensor assembly inluding said die and methods for manufacturing said die and said assembly

The invention concerns a pressure sensing die to be mounted on a base, comprising:a diaphragm structure with a deflectable pressure sensing diaphragm whose deflection is representative of the pressure and sensing elements for detecting the deflection of the sensing diaphragm;a pedestal supporting the diaphragm structure;wherein the pedestal is a composite pedestal comprising top and bottom platforms connected by at least one small link having a mean cross-section smaller than the cross-section of the top platform, said small link isolating at least some of the stresses, produced by the mounting of the pressure sensing die on the base, from said deflectable pressure sensing diaphragm.
Owner:AUXITROL

Wafer probe test and inspection system

An apparatus for electrically testing a semiconductor device is herein disclosed. The apparatus includes carriers for a semiconductor device and a probe card (52) that are adapted for complementary registration with one another. The coupled carriers may be stacked or used in another high-density arrangement during electrical test or burn-in to improve test cell utilization.
Owner:RUDOLPH TECHNOLOGIES INC

Loop hanger with integral washer

A loop hanger, such as for supporting fire sprinkler pipe, contains an integral fold-over washer with an annular stiffening rib, the benefits of which are to minimize deflection of the horizontal ears of the hanger under an applied load and offer simplified installation by eliminating the need for additional flat washers.
Owner:ERICO INT

Evaluation electronics system for a rotation-rate sensor

An evaluation electronics system for a rotation-rate sensor, having a first and a second seismic mass, is developed for the purpose of ascertaining a rotation rate, acting on the rotation-rate sensor, from a deflection of the first and second seismic masses. The evaluation electronics system, in this instance, has a regulation member in order to minimize an undesired deflection of the first and second seismic masses, caused by interference influences.
Owner:ROBERT BOSCH GMBH

Method of making a gas turbine engine diffuser

A method of machining a plurality of intersecting bores in an object, the method comprising steps of machining a first bore, plugging the first bore, machining a second bore so as to intersect the first bore, and unplugging the first bore.
Owner:PRATT & WHITNEY CANADA CORP

Collapsible intermodal transport platform

A collapsible intermodal transport platform and methods for its operation are disclosed. The invention comprises structural ribbings that rotate about an axle disposed beneath the loading surface of the platform. The ribbings are positioned along the platform so as to provide lifting and stacking fitments at the standard overhead crane lifting points when in a lift configuration. The ribbings may be rotated inboard down to the loading surface, thereby presenting stacking blocks at the crane lifting points for stacking several platforms together. Alternatively, the ribbings may be rotated outboard to accommodate full size loading of cargo. The ribbings are rotated under electric or hydraulic power, according to the various embodiments disclosed. Other features and aspects disclosed lend to the invention's low weight and high carrying capacity, as well as its unique load securing features.
Owner:PILLAR CAPITAL CORP

Helical cutting insert with axial clearance slash

An indexable, helical cutting insert includes at least one axial clearance slash extending from a bottom surface to one of said side walls forming a wiper on an edge of the axial clearance slash. In another embodiment, the cutting insert includes at least one inside cutting edge that extends outwardly a distance from the side wall. In another embodiment, the helical cutting insert includes at least one progressive cutting edge. In another embodiment, the cutting insert includes at least one helical cutting edge that is curved inwardly to enable the cutting insert to perform machining operations on cutters having different diameters.
Owner:KENNAMETAL INC
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