中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

96 records (took 0.026 seconds)

    Conical viscosity pump with axially positionable impeller and method of printing a 3D part
    43.
    发明授权
    Conical viscosity pump with axially positionable impeller and method of printing a 3D part 审中-公开

    公开(公告)号：US10670019B2

    公开(公告)日：2020-06-02

    申请号：US15337503

    申请日：2016-10-28

    Applicant: Stratasys, Inc.

    Inventor： Robert L. Zinniel ,  J. Samuel Batchelder

    IPC: F04D3/02 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C48/285 ,  B29C64/20 ,  B29C64/386 ,  B29C64/106 ,  B22F3/00 ,  B29C48/395 ,  B29C48/02

    Abstract: A pump assembly for use in an additive manufacturing system includes a viscosity pump having a first end and a second end wherein the first end has a cross sectional area greater than a cross sectional area of the second end. The viscosity pump has a conical shaped inner surface defining a pump chamber, an inlet proximate the first end and an outlet proximate the second end. The viscosity pump includes an impeller having an axis of rotation, where the impeller has a shaft positioned through the first end of the first housing and into the pump chamber. The impeller includes a distal tip-end at a distal end of the shaft wherein the impeller is configured to be axially displaced within the pump chamber of the viscosity pump parallel to the axis of rotation. An actuator is coupled to a proximal end of the impeller, wherein the actuator is configured to move the impeller parallel to the axis of rotation.

    Electrohydrodynamic additive manufacturing systems and methods for high temperature modeling
    46.
    发明授权
    Electrohydrodynamic additive manufacturing systems and methods for high temperature modeling 有权

    公开(公告)号：US10471631B2

    公开(公告)日：2019-11-12

    申请号：US15378767

    申请日：2016-12-14

    Applicant: Stratasys, Inc.

    Inventor： J. Samuel Batchelder

    IPC: B29C33/52 ,  B29C31/04 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/112 ,  B29C64/386 ,  B29C64/40 ,  B29L31/00

    Abstract: A method to form a part in an additive manufacturing system includes providing a melt pool configured to retain and dispense an electrically resistive consumable material and an array of channels in fluid communication with the melt pool. The method includes providing an array of channels in fluid communication with the melt pool, where each of the array of channels have a hollow electrically conductive nozzles wherein each of the array of nozzles is coupled to a distal end of one of the array of channels such that the consumable material can flow from the melt pool to each of the nozzles. The method includes providing a grid spaced from of the array of nozzle array wherein the grid defines a uniform ground potential, wherein the ground potential of the grid is substantially the same as a potential of the part being printed and the consumable material spaced from the grid. A plurality of drivers is in electric communication with the array of nozzles wherein each of the drivers is configured to modulate a voltage of a single nozzle of the array of nozzles wherein a difference in voltage from the array of nozzles to the ground potential allows passage of droplets of the consumable material to be ejected from each nozzle and pass through the grid, whereby electrostatic distortions of a drop from each nozzle selectively launches drops of support in response to changes of the potential of a nozzle by its driver such that consumable material is deposited in a layer by layer manner to form a portion of a mold for a part. The method includes depositing molten part material within the mold.

    Electrophotography-based additive manufacturing with pre-sintering
    50.
    发明授权
    Electrophotography-based additive manufacturing with pre-sintering 有权

    公开(公告)号：US09868255B2

    公开(公告)日：2018-01-16

    申请号：US14218102

    申请日：2014-03-18

    Applicant: Stratasys, Inc.

    Inventor： James W. Comb ,  J. Samuel Batchelder

    IPC: B29C67/00 ,  G03G15/22

    CPC classification number: B29C64/153 ,  B29C64/141 ,  B29C64/147 ,  G03G15/224

    Abstract: A method and system for printing a three-dimensional part, which includes producing a developed layer of a part material with one or more electrophotography engines of an additive manufacturing system, transferring the developed layer from the one or more electrophotography engines to a transfer assembly of the additive manufacturing system sintering the developed layer at the transfer assembly to produce a sintered contiguous film, cooling the sintered contiguous film down to a transfer temperature, and pressing the cooled sintered contiguous film into contact with an intermediate build surface of the three-dimensional part with a low applied pressure.

Patent Agency Ranking