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 (483 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 (224 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 (179 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 (137 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 (92 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 (60 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 (34 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: Film processing method and apparatus. Weingarten Schurgin & Gagnebin, April 13, 1982: US04324479 (28 worldwide citation)

An automatic film processor is provided with leakage control in the form of a closed loop fluid handling system to provide negative pressure in the processing tanks, a specialized outlet orifice for the processing tanks to maintain fluid level above the film plane, means for providing an inert atmos ...



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