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A powder container (10) comprising a pressure vessel (12) for containing a quantity of powder (14) and a quantity of pressurised gas (32), an outlet through which, in use, the powder (14) can flow out of the pressure vessel (12), and an outlet valve (24) for selectively opening and closing the outlet, wherein the container (10) further comprises a data sensing and/or logging means (56, 58, 60, 62, 64) adapted to monitor and/or log various parameters of the powder (14) and/or the pressurised gas (32) and further comprising a control unit (54) adapted record and log the sensor readings either continuously, or at intervals, the control unit (54) comprising a communications module adapted to relay sensor readings, or log files, to a remote monitoring station.

Titel:	Transport of powders
Autor/in / Beteiligte Person:	LPW TECHNOLOGY LTD.
Link:	View record in USPTO Patent Grants (Volltext)
Veröffentlichung:	2023
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Grants Sprachen: English Patent Number: 11767,159 Publication Date: September 26, 2023 Appl. No: 17/740182 Application Filed: May 09, 2022 Assignees: LPW TECHNOLOGY LTD. (Runcorn, GB) Claim: 1. A system comprising: an additive manufacturing (AM) machine; and a transport container comprising: a pressure vessel for containing a quantity of powder for AM and a quantity of pressurised gas; an outlet through which, in use, the powder can flow out of; an outlet valve for selectively opening and closing the outlet; and data and/or sensing means adapted to monitor and/or log various parameters of the powder and/or the pressurised gas, wherein the AM machine comprises an inlet adapted to connect to the outlet of the container. Claim: 2. The system of claim 1 , wherein the inlet of the AM machine comprises an inlet valve configured such that when the outlet valve and inlet valve are closed, a sealed interior volume is formed by the outlet of the container and the inlet of the AM machine. Claim: 3. The system of claim 1 , wherein when the outlet valve of the container is opened, and the inlet valve of the AM machine is opened, powder is able to flow between the container and the AM machine. Claim: 4. The system of claim 1 , wherein the data sensing and/or logging means comprises any one or more of the group comprising an oxygen sensor; a humidity sensor; a temperature sensor; a strain gauge; a weighing device; a location sensor; a GPS tracking device; an accelerometer; an electrostatic sensor; and a pressure sensor. Claim: 5. The system of claim 1 , wherein the container comprises a control unit adapted to record and log the sensor readings either continuously, or at intervals. Claim: 6. The system of claim 5 , wherein the control unit comprises a communications module adapted to relay sensor readings, or log files, to a remote monitoring station. Claim: 7. The system of claim 6 , wherein the remote monitoring station is configured to periodically poll the communications module for sensor readings. Claim: 8. The system of claim 6 , wherein the remote monitoring station is configured to send an SMS message to the container, whereupon the communications module replies via an SMS message containing a list of sensor readings or log files. Claim: 9. The system of claim 6 , wherein the remote monitoring station is configured to monitor many containers and to collate the data to identify trends across various containers' readings. Claim: 10. The system of claim 6 , wherein the communications module comprises a GSM transceiver. Claim: 11. The system of claim 1 , wherein the pressure vessel comprises a part-conical main body portion leading to the outlet. Claim: 12. The system of claim 1 , wherein the outlet comprises an outlet tube which terminates in a radially outwardly extending connection flange. Claim: 13. The system of claim 1 , wherein the outlet comprises a vacuum flange coupling. Claim: 14. The system of claim 1 , wherein an interlock device is provided between the container and the AM machine. Claim: 15. The system of claim 1 , wherein the container comprises a pilot line communicating with the interior of the pressure vessel and/or a supplementary gas supply connected to the pressure vessel. Claim: 16. The system of claim 1 , wherein the pressure vessel contains a quantity of metal powder for AM. Claim: 17. The system of claim 1 , wherein the pressure vessel contains a quantity of inert pressurised gas. Patent References Cited: 3209675 October 1965 Stimpson et al. ; 3223457 December 1965 Douglas ; 4153304 May 1979 Haskins ; 5540266 July 1996 Grau et al. ; 6311745 November 2001 Welch et al. ; 6508378 January 2003 Maeda et al. ; 9919816 March 2018 Tenegal ; 20080050286 February 2008 Elliott et al. ; 20080196942 August 2008 Bingham et al. ; 20110182675 July 2011 Mortensen ; 20120276262 November 2012 Schrader et al. ; 20130002443 January 2013 Breed et al. ; 20130164960 June 2013 Swanson ; 20130333798 December 2013 Bosveld ; 20150114996 April 2015 Gallagher ; 20150354637 December 2015 Slayne ; 20170313499 November 2017 Hughes et al. ; 20210138553 May 2021 Ferrar et al. ; 200995880 December 2007 ; 3410721 October 1985 ; 90 15 828.8 February 1991 ; 20 2005 016 035 January 2006 ; 1 296 736 November 1972 ; 1 362 509 August 1974 ; 2 436 097 September 2007 ; 57-166225 October 1982 ; H02-20691 January 1990 ; H11-59786 March 1999 ; 2002-020802 January 2002 ; 2008-239243 October 2008 ; 2017-516960 June 2017 ; 10-2011-0130003 December 2011 ; 99/23016 May 1999 ; 03/040666 May 2003 Other References: Hall, Aaron Christopher, “Powder Safety Awareness for Additive Manufacturing”, Oct. 28-30, 2014. cited by applicant ; International Search Report and Written Opinion received in International Application No. PCT/GB2015/052744, dated Mar. 29, 2016, 14 pages. cited by applicant ; International Search Report and Written Opinion received in International Application No. PCT/GB2015/052750, dated Feb. 29, 2016, 13 pages. cited by applicant ; Soloman et al., “Effect of Oxygen and Fluorescent Light on the Quality of Orange Juice During Storage at 8C”, Elsevier, Food Chemistry, Sep. 29, 1994,pp. 363-368. cited by applicant Primary Examiner: Kelly, Timothy P. Attorney, Agent or Firm: Adler Pollock & Sheehan P.C.

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Transport of powders