1
Emanuel M Sachs, John S Haggerty, Michael J Cima, Paul A Williams: Three-dimensional printing techniques. Massachusetts Institute of Technology, Robert F O Connell, April 20, 1993: US05204055 (524 worldwide citation)

A process for making a component by depositing a first layer of a fluent porous material, such as a powder, in a confined region and then depositing a binder material to selected regions of the layer of powder material to produce a layer of bonded powder material at the selected regions. Such steps ...


2
Andrew F Roberts, Emanuel M Sachs, David R Stoops, Karl T Ulrich, Todd L Siler, David C Gossard, George W Celniker: Computer aided drawing in three dimensions. Massachusetts Institute of Technology, Fish & Richardson, August 17, 1993: US05237647 (235 worldwide citation)

A computer system for aiding in the design of an object, comprising a first sensor representing the object and adapted to be moved in three dimensions in a work area by a designer, the first sensor providing signals to the computer system that indicate its position and orientation in the work area, ...


3
Emanuel M Sachs, John S Haggerty, Michael J Cima, Paul A Williams: Three-dimensional printing techniques. Massachusetts Institute of Technology, Robert F O Connell, August 23, 1994: US05340656 (188 worldwide citation)

A process for making a component by depositing a first layer of a powder material in a confined region and then depositing a binder material to selected regions of the layer of powder material to produce a layer of bonded powder material at the selected regions. Such steps are repeated a selected nu ...


4
Herbert H Sawin, William T Conner, Timothy J Dalton, Emanuel M Sachs: Apparatus and method for real-time measurement of thin film layer thickness and changes thereof. Massachusetts Institute of Technology, Steven J Weissburg, September 12, 1995: US05450205 (138 worldwide citation)

A new technique has been developed to measure etching or deposition rate uniformity in situ using a CCD camera which views the wafer during plasma processing. The technique records the temporal modulation of plasma emission or laser illumination reflected from the wafer; this modulation is caused by ...


5
Emanuel M Sachs: Powder dispensing apparatus using vibration. Massachusetts Institute of Technology, Steven J Weissburg, March 14, 2000: US06036777 (105 worldwide citation)

An apparatus and method for use in producing three dimensional components by bonding together successive layers of a porous material with droplets of a binder material. A powder is dispensed on a support surface in a layer. A vibratory mechanism vibrates the layer of dispensed powder to compact the ...


6
Emanuel M Sachs, Constantinos Hadjiloucas, Samuel Allen, Helen J Yoo: Metal and ceramic containing parts produced from powder using binders derived from salt. Massachusetts Institute of Technology, Steven J Weissburg, January 21, 2003: US06508980 (68 worldwide citation)

Parts made from powder use a material that originates from a salt to bind powder particles together. The salt may be provided dissolved in a solution, as molten salt, or as a dry powder. The figure is an electron micrograph of a cross section of a silver nitrate bound product with a skeleton of stee ...


7
Emanuel M Sachs, Michael J Cima, James F Bredt, Satbir Khanuja: Process for removing loose powder particles from interior passages of a body. Massachusetts Institute of Technology, Weingarten Schurgin Gagnebin & Hayes, February 13, 1996: US05490882 (53 worldwide citation)

A technique for removing loose powder from the interior surfaces of ceramic molds made using layer manufacturing processes, such as three dimensional printing processes. The interior of a mold can be filled with liquid, such as water, which is boiled by applying microwave energy of a frequency selec ...


8
Emanuel M Sachs, Michael J Cima: Three-dimensional product manufacture using masks. Massachusetts Institute of Technology, Steven J Weissburg, August 17, 1999: US05940674 (43 worldwide citation)

A process for making a component includes the steps of: depositing a layer of a porous material; positioning a mask near to the deposited layer; applying a bonding material that will cause any contacted portions of the porous material to become bonded together, over and through the mask, such that t ...


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Emanuel M Sachs, Won B Bang, Michael J Cima: Molds for casting with customized internal structure to collapse upon cooling and to facilitate control of heat transfer. Massachusetts Institute of Technology, Steven J Weissburg, June 4, 2002: US06397922 (32 worldwide citation)

A new mold solves problems that arise from differential changes in geometry inherent to casting metal in a ceramic mold, by control of the internal morphology between the surfaces of the mold that face the casting, and that face the external environment. Layered fabrication techniques are used to cr ...



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