Patent application number | Description | Published |
20120241492 | TISSUE THICKNESS COMPENSATOR COMPRISING AT LEAST ONE MEDICAMENT - In various embodiments, a tissue thickness compensator can comprise one or more capsules and/or pockets comprising at least one medicament therein. In at least one embodiment, staples can be fired through the tissue thickness compensator to rupture the capsules. In certain embodiments, a firing member, or knife, can be advanced through the tissue thickness compensator to rupture the capsules. | 09-27-2012 |
20120241499 | RETAINER ASSEMBLY INCLUDING A TISSUE THICKNESS COMPENSATOR - A retainer for assembling tissue thickness compensators to a surgical stapler can comprise a grip, a first surface for supporting a first tissue thickness compensator, a second surface for supporting a second tissue thickness compensator, and clips for aligning and attaching the retainer to the surgical stapler. The clips may align and attach the retainer to a staple cartridge of the surgical instrument. The clips may align the retainer with an anvil of the surgical instrument. An insertion tool may be used in combination with the retainer to insert the retainer into the surgical stapler and to push the tissue thickness compensators against the anvil and/or the staple cartridge of the surgical instrument. | 09-27-2012 |
20120248169 | METHODS FOR FORMING TISSUE THICKNESS COMPENSATOR ARRANGEMENTS FOR SURGICAL STAPLERS - Tissue thickness compensators for use with surgical staplers that are configured to form staples having different formed heights. Various tissue thickness compensators are disclosed that have non-uniform cross-sectional thicknesses or profiles. The tissue thickness compensators may be formed with a surface that matches a non-planar surface of the anvil or the staple cartridge deck. Methods of forming tissue thickness compensators with non-uniform cross-sectional thicknesses or profiles are also disclosed. | 10-04-2012 |
20130256368 | TISSUE THICKNESS COMPENSATOR AND METHOD FOR MAKING THE SAME - In various embodiments, a tissue thickness compensator can comprise a film body formed from a continuous extruded shape and, in addition, a fibrous medicament core. | 10-03-2013 |
20150305745 | RETAINER ASSEMBLY INCLUDING A TISSUE THICKNESS COMPENSATOR - A retainer for assembling tissue thickness compensators to a surgical stapler can comprise a grip, a first surface for supporting a first tissue thickness compensator, a second surface for supporting a second tissue thickness compensator, and clips for aligning and attaching the retainer to the surgical stapler. The clips may align and attach the retainer to a staple cartridge of the surgical instrument. The clips may align the retainer with an anvil of the surgical instrument. An insertion tool may be used in combination with the retainer to insert the retainer into the surgical stapler and to push the tissue thickness compensators against the anvil and/or the staple cartridge of the surgical instrument. | 10-29-2015 |
20150313591 | RETAINER ASSEMBLY INCLUDING A TISSUE THICKNESS COMPENSATOR - A retainer for assembling tissue thickness compensators to a surgical stapler can comprise a grip, a first surface for supporting a first tissue thickness compensator, a second surface for supporting a second tissue thickness compensator, and clips for aligning and attaching the retainer to the surgical stapler. The clips may align and attach the retainer to a staple cartridge of the surgical instrument. The clips may align the retainer with an anvil of the surgical instrument. An insertion tool may be used in combination with the retainer to insert the retainer into the surgical stapler and to push the tissue thickness compensators against the anvil and/or the staple cartridge of the surgical instrument. | 11-05-2015 |
Patent application number | Description | Published |
20120011708 | Method for Forming Electrodynamic Machine Insulated Coils - A method for manufacturing electrodynamic machine conductive coils, such as alternating current induction motor stator coils. A continuous strand of insulation coated wire is formed into a generally planar elongated closed loop having a circumference and an outer surface. Thereafter a permanent insulation layer is applied to the closed loop outer surface, preferably by spiral wrapping insulating tape about the circumference of the closed loop with a tape wrapping machine. The insulating tape has a catalytic chemical compound including at least one part of a multi-part epoxy resin. The closed loop is shaped into a rigid conductive coil by application pressure, in order to conform the coil to a desired profile. Application of the permanent insulation layer to the closed loop prior to its final shaping enables machine insulation taping over a larger portion of the coil circumference and reduces need for slower and more expensive hand taping. | 01-19-2012 |
20120180019 | SYSTEM AND METHOD FOR STORING, USING AND EVALUATING MANUFACTURING DATA - A computer implemented method for evaluating quality control data of a product manufactured by a partially automated manufacturing process. In the method, a database is generated which includes design specifications for the product. Manufacturing data generated from inspection of the product at each stage of the partially automated process is then received. The manufacturing data is then compared with the design specifications to determine whether the manufacturing data meets the design specifications. In one embodiment, the product is an induction coil used in electric motors. | 07-12-2012 |
20120194014 | SYSTEM AND METHOD FOR INCREASING AIRFLOW IN ELECTRIC MACHINES - An air-cooled electric machine, such as an alternating current motor, having a housing containing a rotating shaft and a housing airflow cooling path has cooling vents on the housing periphery. An external cooling system having a duct enclosure is coupled to the housing exterior, and defines a duct airflow cooling path that is in communication with the housing airflow cooling vent and housing airflow cooling path. A duct fan within the duct enclosure external the housing is coupled to and driven by the shaft. The duct fan circulates air at above ambient pressure into the housing airflow cooling path. | 08-02-2012 |
20120280581 | Electric Machine with Power Taps - Machines and motors with multiple three-phase AC power connections. A motor includes first, second, and third windings arranged to drive a rotator shaft. A first end of each winding is connected to a respective power input of a three-phase alternating current (AC) power source and a second end of each winding is connected to a neutral. The motor includes at least one intermediate tap connected to each of the first, second, and third windings at substantially equal respective distances between the neutral and the respective power inputs. The intermediate taps together provide a three-phase AC power output at a voltage that is less than the voltage of the three-phase AC power source. | 11-08-2012 |
20120286600 | INDUCTION MACHINE POWER CONNECTION BOX INCLUDING POWER SUPPLY FOR AUXILIARY DEVICES INCLUDING AUXILIARY COOLING FANS - An alternating current (AC) induction machine, such as a medium voltage induction motor, includes an auxiliary electrical connection box that is incorporated in the terminal box or within separate auxiliary electrical connection boxes that, are coupled to the machine's incoming power source. The box includes power conversion transformers or bridges that respectively convert the incoming AC power to other AC voltages or direct current (DC) useful for operating auxiliary devices proximal the machine. The connection box avoids the need to run separate power lines to induction machines necessary for operating auxiliary devices. Exemplary auxiliary devices include external auxiliary AC powered cooling fans for medium voltage AC motors. The auxiliary connection box may reconfigurable in the field and/or be pre-configured to provide one or more common auxiliary device output power sources. | 11-15-2012 |
20130049507 | PASSIVE MAGNETIC BEARINGS FOR ROTATING EQUIPMENT INCLUDING INDUCTION MACHINES - Permanent magnet bearings are incorporated into rotating equipment, such as induction machines, in addition to active magnetic or lubricated primary shaft support bearings. The passive magnetic bearings incorporate permanent magnets that generate directionally oriented magnetic fields of selective intensity. The magnetic field directions are aligned with a desired shaft support bearing preload direction and intensity, for example to exert axial thrust or radial preloads on the support bearings. A plurality of magnetic bearings may be oriented in opposed relationship with neutral or offsetting resultant forces. The passive magnetic force preload may be utilized to offset rotor vertical weight during induction startup or stopping cycles. Passive magnetic force preload may be applied to lubricated bearings to assure their operational stability. The passive magnetic bearings can also absorb radial or axial thrust forces imparted on the rotor shaft during induction machine operation, that may reduce machine operational noise, and energy consumption. | 02-28-2013 |
20130049519 | METHOD AND APPARATUS FOR INSULATING INDUCTION MACHINE COIL CONNECTORS - Method and apparatus for insulating induction machine conductive connectors by sliding a closed-end insulating sheath over the connector. The sheath is circumferentially secured to the conductive connector with a biasing element, such as an elastomeric stretchable fabric, stretch tape or heat shrink material. Additional insulative materials as well as resin curing catalysts or accelerants may be added to the sheath. | 02-28-2013 |
20140062227 | APPARAUS AND METHOD FOR INDUCTION MOTOR HEAT TRANSFER - A heat sink apparatus for induction motors and other dynamoelectric machines. The heat sink has a mounting portion adapted for coupling to a motor housing. A first heat sink portion is adapted for insertion into a motor housing interior, such as through an aperture in the frame or bearing bracket, and is thermally coupled to a second heat sink portion that is adapted for orientation outside the housing. The heat sink apparatus first heat sink portion may be inserted within an air channel of a TEFC induction motor. The heat sink preferably has a higher heat transfer rate than the motor housing. | 03-06-2014 |
20140070642 | APPARATUS, SYSTEMS, AND METHODS FOR INCREASING AIRFLOW THROUGH INDUCTION MOTORS - Induction motors may have a rotor core assembly that includes a plurality of rotor laminations having an arrangement of vents therein. The arrangement of vents may provide increased airflow through the induction motor without adversely affecting the electromagnetic properties of the motor. The arrangement of vents includes first and second circular rows of vents, wherein each vent of the first row may be radially aligned with a respective vent of the second row, and each radially aligned pair of first and second row vents may be radially aligned with a respective conductor bar slot in the rotor lamination. The number of rotor bar slots may equal the number of first row vents and the number of second row vents. Systems and methods of facilitating ventilation in an induction motor are provided, as are other aspects. | 03-13-2014 |
20140097721 | ROTOR APPARATUS AND METHODS OF IMPROVING MAGNETIZATION IN ELECTRIC MACHINES - Induction motors may have a rotor that includes a shaft and a plurality of rotor laminations. The plurality of rotor laminations may have a central bore sized to receive the shaft, and the shaft may have a laminated portion that extends throughout the central bore. In other embodiments, the plurality of rotor laminations may have a very small or no central bore, and the shaft may include first and second end pieces respectively attached on opposite sides of the plurality of rotor laminations. In some embodiments, the first and second end shaft pieces may be attached to the rotor laminations with a through bolt that passes through the rotor laminations via a central bore sized no larger than needed to receive the through bolt, allowing each of the rotor laminations to have a larger laminated surface area. Methods of assembling a rotor are also provided, as are other aspects. | 04-10-2014 |
20140111039 | RADIAL MAGNETIC VIBRATION DAMPING APPARATUS, BEARING SUPPORT ASSEMBLIES, AND OPERATIONAL METHODS - A bearing support assembly adapted to support and damp radial vibration of a rotor shaft of a vertical motor is disclosed. The bearing support assembly has a thrust bearing adapted to couple to a rotor shaft and carry axial thrust loads along an axial axis, and a radial magnetic damping apparatus having one or more magnetic field-producing members adapted to provide a radially-acting magnetic force to act upon the rotor shaft to reduce radial vibration thereof. Vertical motors and methods of operating the vertical motors are disclosed, as are other aspects. | 04-24-2014 |
20140111047 | MAGNETIC BEARING APPARATUS AND METHOD FOR VARYING SHAFT THRUST LOAD SUPPORT IN INDUCTION MOTORS AND OTHER ROTATING MACHINERY - A permanent magnet bearing supports part of thrust loads of a vertical shaft induction motor, or the thrust loads of other types of rotation machinery regardless of shaft rotational axis orientation, in parallel with a lubricated mechanical bearing. The permanent magnet has a stationary magnet portion coupled to a bearing bracket and a rotating portion adapted for coupling to a rotor shaft. The permanent magnet bearing exerts a directional magnetic force that generates a preload support force on the rotor shaft that is selectively varied by varying air gap between the stationary and rotating magnet portions. Air gap between the magnet portions is varied with an air gap adjustment mechanism. The gap adjustment mechanism may be coupled to a control system that in some embodiments causes the permanent magnet bearing to vary the air gap based on external load applied on the motor. | 04-24-2014 |
20150076968 | ELECTRIC MACHINE ROTOR WITH ROTOR VENT AND AXIAL SLOT FLUID COMMUNICATION - A rotor of an electric machine is provided and includes first and second core elements formed to define annular arrays of axial slots and rotor bar openings, each axial slot being fluidly communicative with a corresponding one of the rotor bar openings and a spacer element interposed between the first and second core elements to define a rotor vent opening fluidly communicative with the axial slots. | 03-19-2015 |
20150076969 | ELECTRIC MACHINE STATOR WITH AXIAL VENTS - A stator of an electric machine is provided and includes laminations arranged to form a core packet. Each lamination is formed to define an annular array of teeth at an inner radial portion thereof and an annular array of annular sectors at an outer radial portion thereof. | 03-19-2015 |
20150084457 | ELECTRIC MACHINE STATOR WITH RADIAL VENT - An electric machine stator is provided and includes laminations consolidated along an axial direction to form a core element such that the core element includes an end lamination at an axial end of the core element. The end lamination includes a body extending in a plane and a plurality of spacer protrusions protruding along the axial direction from the plane. Each of the spacer protrusions of the plurality of spacer protrusions is configured for consolidation with another core element to define a radial vent between the core element and the another core element. | 03-26-2015 |
20150229182 | PASSIVE MAGNETIC BEARINGS FOR ROTATING EQUIPMENT INCLUDING INDUCTION MACHINES - Permanent magnet bearings are incorporated into rotating equipment, such as induction machines, in addition to active magnetic or lubricated primary shaft support bearings. The passive magnetic bearings incorporate permanent magnets that generate directionally oriented magnetic fields of selective intensity. The magnetic field directions are aligned with a desired shaft support bearing preload direction and intensity, for example to exert axial thrust or radial preloads on the support bearings. A plurality of magnetic bearings may be oriented in opposed relationship with neutral or offsetting resultant forces. The passive magnetic force preload may be utilized to offset rotor vertical weight during induction startup or stopping cycles. Passive magnetic force preload may be applied to lubricated bearings to assure their operational stability. The passive magnetic bearings can also absorb radial or axial thrust forces imparted on the rotor shaft during induction machine operation, that may reduce machine operational noise, and energy consumption. | 08-13-2015 |