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 (43 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, Suzanne M Scott, James M Corliss: Inflator/sealer device for inflatable packaging cushion. Sealed Air Corporation, Daniel B Ruble, May 27, 2003: US06569283 (27 worldwide citation)

An inflator/sealer machine useful for inflating and sealing an inflatable cushion having a resistance wire that extends across the inlet of the inflatable cushion. The machine includes an inflation tube, a seal bar, and an anvil. The inflation tube is connected to a source of inflation fluid and has ...


3
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 ...


4
Charles Sperry
Charles R Sperry, Suzanne M Scott: Inflatable packaging cushion with a resistance wire. Sealed Air Corporation, Daniel B Ruble, August 21, 2001: US06276532 (23 worldwide citation)

An inflatable cushion includes top and bottom sheets. The top sheet is sealed to the bottom sheet in peripheral zones to define an inflatable chamber and an inflation inlet in fluid communication with the inflatable chamber. A resistance wire extends between the top and bottom sheets and at least ac ...


5
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 ...


6
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 ...


7
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 ...


8
Charles Sperry
Vincent A Piucci Jr, Charles R Sperry, Walter C Sadakierski, Suzanne M Scott: Self-cleaning fluid dispenser. Sealed Air Corporation, Thomas C Lagaly, November 2, 2004: US06811059 (11 worldwide citation)

A fluid dispenser generally includes a housing and a valving rod disposed in and movable within the housing, the valving rod including a central bore, at least one inlet for receiving a cleaning fluid composed of a solvent and a gas, and one or more outlet ports in fluid communication with the bore, ...


9
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 ...


10
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 ...



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