公开(公告)号：US20210339470A1

公开(公告)日：2021-11-04

申请号：US17256674

申请日：2019-01-23

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sunil Kothari ,  Tod Heiles ,  Luke Bockman ,  Gary J. Dispoto ,  Md Abdullah Al Hafiz Khan ,  Todd Goyen

IPC: B29C64/188 ,  B29C64/218 ,  B29C64/393 ,  B29C64/209 ,  B29C64/268 ,  B29C64/165 ,  B33Y50/02 ,  B33Y40/20 ,  G06T7/00

Abstract: A system for detecting three-dimensional (3D) part drag includes an infrared image capture device to capture a plurality of thermal images of a 3D part build region of a 3D printing device on which a part is built, and an image analysis module to detect drag of the part based on a difference image produced by subtracting a first thermal image from a second thermal image.

公开(公告)号：US11351733B2

公开(公告)日：2022-06-07

申请号：US16075172

申请日：2017-04-08

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Alvin Post ,  Arthur H. Barnes ,  Sheldon Bernard ,  Matthew A. Shepherd ,  Todd Goyen

IPC: B29C64/393 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/295 ,  B29C64/165

Abstract: In one example, a fusing system for an additive manufacturing machine includes a fusing lamp to heat build material in the work area, a heat sensor to measure a heat output of the fusing lamp, and a controller operatively connected to the fusing lamp and to the heat sensor to adjust the heat output of the fusing lamp to the work area based on a heat output measured by the heat sensor.

公开(公告)号：US11511486B2

公开(公告)日：2022-11-29

申请号：US17256674

申请日：2019-01-23

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Sunil Kothari ,  Tod Heiles ,  Luke Bockman ,  Gary J. Dispoto ,  Md Abdullah Al Hafiz Khan ,  Todd Goyen

IPC: B29C64/188 ,  B33Y50/02 ,  B29C64/209 ,  B29C64/393 ,  B29C64/268 ,  B29C64/165 ,  B29C64/218 ,  B33Y40/20 ,  G06T7/00 ,  B33Y10/00 ,  B33Y30/00

Abstract: A system for detecting three-dimensional (3D) part drag includes an infrared image capture device to capture a plurality of thermal images of a 3D part build region of a 3D printing device on which a part is built, and an image analysis module to detect drag of the part based on a difference image produced by subtracting a first thermal image from a second thermal image.

公开(公告)号：US20220163396A1

公开(公告)日：2022-05-26

申请号：US17414984

申请日：2019-07-30

Applicant: Hewlett-Packard Development Company, L.P.

Inventor： Todd Goyen ,  Joshua M. Hunsaker ,  Brian Hupy

IPC: G01J5/08 ,  G01J5/02 ,  G01J5/48

Abstract: An optical assembly may include a thermal sensor and a temperature source between the optical assembly and a viewing area of the thermal sensor. The temperature source may provide a first reference temperature and a second reference temperature. A controller may cause the thermal sensor to sense thermal images of the temperature source at a first reference temperature and a second reference temperature and determine a contamination level of the optical assembly or a damage to the optical assembly based on the thermal images.

公开(公告)号：US11226236B2

公开(公告)日：2022-01-18

申请号：US16074896

申请日：2017-04-21

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Joshua Peter Yasbek ,  Todd Goyen ,  David Soriano Fosas ,  Asa Weiss ,  Arthur H. Barnes

IPC: G01J5/10 ,  G01J5/06

Abstract: In an example, an apparatus is described that includes a non-resistive heat source, a thermally conductive face, and a temperature detector. The thermally conductive face has a controlled long-wave infrared emissivity and is in thermal contact with the non-resistive heat source. The temperature detector is positioned to detect a temperature of the thermally conductive face.

公开(公告)号：US20210114113A1

公开(公告)日：2021-04-22

申请号：US17040610

申请日：2018-07-27

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Joshua Peter Yasbek ,  Todd Goyen ,  Pierre J. Kaiser

IPC: B22F12/70 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/393 ,  B29C64/364 ,  B33Y40/00 ,  B28B1/00 ,  B28B17/00 ,  B22F12/90 ,  B22F10/28 ,  B01D46/00 ,  B01D46/44

Abstract: In some examples, a controller is to receive a measurement from a sensor in an enclosure, and use the measurement and a baseline value to represent a condition of an airflow flowing through a filter that removes particulates from an incoming airflow into the enclosure. Based on the measurement and the baseline value, the controller is to selectively adjust a setting of an airflow generator that causes the incoming airflow through an inlet into the enclosure, or indicate that the filter is to be replaced.

公开(公告)号：US09427991B1

公开(公告)日：2016-08-30

申请号：US14812605

申请日：2015-07-29

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： Todd Goyen ,  Duane A Koehler ,  Matthew A. Shepherd

IPC: B41J23/00

CPC classification number: B41J23/00

Abstract: An example device in accordance with an aspect of the present disclosure includes a controller to adjust print speed intra-page according to a response curve to substantially track a power curve of a power supply. The controller is to maximize print speed based on short-term energy data corresponding to present and future print data and long-term energy data corresponding to past print data, without exceeding a peak power output and a thermal limit of the power supply when printing according to the response curve.

Abstract translation: 根据本公开的一个方面的示例性设备包括：控制器，用于根据响应曲线调整页内的打印速度，以基本上跟踪电源的功率曲线。 该控制器是基于与当前和将来的打印数据相对应的短期能量数据和对应于过去的打印数据的长期能量数据来最大化打印速度，而不超过峰值功率输出和打印时电源的热限制 到响应曲线。