公开(公告)号：US10814544B2

公开(公告)日：2020-10-27

申请号：US15334851

申请日：2016-10-26

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Peter J. Nystrom ,  Christopher G. Lynn ,  Jun Ma ,  Mark A. Cellura ,  Gary D. Redding

IPC: B29C48/80 ,  B29C48/00 ,  B29C48/29 ,  B29C48/36 ,  B29C64/106 ,  B29C48/92 ,  B29C64/295 ,  B29C64/209 ,  B33Y70/00 ,  B33Y30/00 ,  B29K101/12

Abstract: An apparatus includes a heater for converting a filament of extrusion material into thermoplastic material. The heater has a channel configured to change the cross-sectional shape of the filament to a cross-sectional shape that has a greater surface area than the surface area of the filament before the heater receives the filament. The channel of the heater can also be configured to drive the center portion of the filament toward the heated walls of the channel and to mix thermoplastic material in the channel while exposing the center portion of the filament to the heated wall of the channel.

公开(公告)号：US10350888B2

公开(公告)日：2019-07-16

申请号：US14563563

申请日：2014-12-08

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Peter J. Nystrom ,  Peter Gulvin ,  Andrew W. Hays ,  Jun Ma

IPC: B41J2/14

Abstract: A printer includes a printhead configured to eject high viscosity material and refill a reservoir in the printhead with high viscosity material. The printhead includes a transducer having an electroactive element and a member to which the electroactive element is mounted. An electrical signal activates the electroactive element to move the electroactive element and the member in the reservoir of high viscosity material. This movement thins the high viscosity material and enables the printhead to eject the thinned material while refilling the reservoir. The apertures through which the thinned material is ejected share a common manifold without separate chambers for each of the apertures.

公开(公告)号：US20170157844A1

公开(公告)日：2017-06-08

申请号：US14962167

申请日：2015-12-08

Applicant: Xerox Corporation

Inventor： Barry P. Mandel ,  David A. Mantell ,  Peter J. Nystrom ,  Andrew W. Hays ,  Mark A. Cellura ,  Jun Ma ,  Gary D. Redding

IPC: B29C67/00

CPC classification number: B29C64/106 ,  B29K2055/02 ,  B33Y30/00

Abstract: A multi-nozzle extrusion printhead includes a chamber with an inlet to receive an extrusion material and a plurality of outlets fluidly coupled to the chamber. The printhead also includes a plurality of valves that control flow of extrusion material through the fluid outlets to nozzles in the printhead. Each valve includes a member and an electromechanical actuator configured to move the member to a first position to block a flow of the extrusion material through one of the fluid outlets and nozzles and to a second position to enable the flow of the extrusion material through the fluid outlet and nozzles.