1
Charles Sperry
Charles R Sperry, Suzanne M Scott, Dennis F McNamara Jr, Vincent A Piucci Jr, Michael J Schamel: Method and apparatus for making foam-in-place cushions with selective distribution of foam. Sealed Air Corporation, Alston & Bird, October 27, 2009: US07607911 (45 worldwide citation)

A method and apparatus for making a foam-in-place cushion in which a foam-forming composition is dispensed between two plastic film portions in a predetermined fashion to selectively control the distribution of the foam in the cushion. A foam dispenser can be moved in a transverse direction as foam ...


2
Charles Sperry
Charles R Sperry, Dennis F McNamara, Suzanne M Scott: Material delivery tension and tracking system for use in solid imaging. 3D Systems, William A Simons, Keith A Roberson, December 23, 2008: US07467939 (26 worldwide citation)

A solid imaging apparatus and method employing a radiation transparent build material carrier and a build material dispensing system that accurately controls the thickness of the transferred layer of solidifiable liquid build material to the radiation transparent build material carrier to achieve hi ...


3
Charles Sperry
Charles W Hull, Jouni Partanen, Charles R Sperry, Suzanne M Scott, Dennis F McNamara Jr: Imager and method for consistent repeatable alignment in a solid imaging apparatus. 3D Systems, William Simons, Keith A Roberson, July 17, 2012: US08221671 (21 worldwide citation)

A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator u ...


4
Charles Sperry
Charles R Sperry, Dennis F McNamara Jr, Suzanne M Scott, Charles W Hull, Jouni Partanen, Mehdi Mojdeh, William J Pappas, Richard O Gregory II: Solid imaging apparatus and method. 3D Systems, William A Simon, Keith A Roberson, November 10, 2009: US07614866 (17 worldwide citation)

A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator u ...


5
Charles Sperry
Charles R Sperry, Dennis F McNamara Jr, Suzanne M Scott, Charles W Hull, Mehdi Mojdeh: Elevator and method for tilting solid image build platform for reducing air entrainment and for build release. 3D Systems, June 18, 2013: US08465689 (13 worldwide citation)

A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator u ...


6
Charles Sperry
Dennis F McNamara Jr, Charles R Sperry, Suzanne M Scott: High-speed apparatus and method for forming inflated chambers. Sealed Air Corporation, Alston & Bird, September 30, 2008: US07429304 (9 worldwide citation)

An apparatus and a method for inflating an inflatable web in which, in one embodiment, the inflatable web is conveyed along a path of travel with an inflation element positioned between unsealed edges of the web and proximate the inflation ports of the web's inflatable chambers, and a tracking senso ...


7
Charles Sperry
Charles W Hull, Jouni P Partanen, Charles R Sperry, Patrick Dunne, Suzanne M Scott, Dennis F McNamara, Chris R Manners: Edge smoothness with low resolution projected images for use in solid imaging. 3D Systems, Ralph D Alessandro, Keith A Roberson, July 20, 2010: US07758799 (8 worldwide citation)

A solid imaging apparatus and method employing sub-pixel shifting in multiple exposures of the digitally light projected image of a cross-section of a three-dimensional object on a solidifiable liquid medium. The multiple exposures provide increased resolution, preserving image features in a three-d ...


8
Charles Sperry
Charles R Sperry, Dennis F McNamara Jr, Suzanne M Scott, Jason A Rittenhour, Charles W Hull, Mehdi Mojdeh: Cartridge for solid imaging apparatus and method. 3D Systems, William A Simons, Keith A Roberson, January 31, 2012: US08105066 (5 worldwide citation)

A solid imaging apparatus is provided that includes a replaceable cartridge containing a source of build material and an extendable and retractable flexible transport film for transporting the build material layer-by-layer from the cartridge to the surface of a build in an image plane. An operator u ...


9
Charles Sperry
Suzanne M Scott, Charles R Sperry, Dennis F McNamara: Material delivery system for use in solid imaging. 3D Systems, William A Simons, Keith A Roberson, April 26, 2011: US07931460 (5 worldwide citation)

A disposable liquid build material feed cartridge for use in a solid imaging apparatus and a method of dispensing build material for use in such an apparatus with a radiation transparent build material carrier. The disposable liquid build material feed cartridge recovers unused liquid material from ...


10
Charles Sperry
Jouni P Partanen, Raymond M Soliz, Dennis F McNamara Jr, Charles R Sperry, Charles W Hull: Bubble-free cross-sections for use in solid imaging. 3D Systems, William A Simons, Keith A Robertson, March 15, 2011: US07906061 (5 worldwide citation)

A solid imaging apparatus and method employing build material transfer means effective to transfer solidifiable liquid build material from a first side of a radiation transparent build material carrier to a receiving substrate without entrapping air bubbles in layers of transferred solidifiable liqu ...