Outlet structure

US2019091925A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2019091925-A1
Application numberUS-201616081841-A
CountryUS
Kind codeA1
Filing dateMay 12, 2016
Priority dateMay 12, 2016
Publication dateMar 28, 2019
Grant date

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A build material nozzle structure ( 202 ) comprises: an interface surface ( 208 ) to interface with a build material container outlet structure ( 100 ); and a retaining structure ( 210 ) to releasably hold the build material container outlet structure in an engagement position with the interface surface of the build material nozzle structure; wherein the retaining structure comprises one or more retaining elements ( 210 - 1, 210 - 2, 210 - 3 ) disposed in the build material nozzle structure to exert an attractive magnetic biasing force on the build material outlet structure to releasably hold the build material container outlet structure in the engagement position with the interface surface of the build material nozzle structure.

First claim

Opening claim text (preview).

1 . A build material nozzle structure comprising: an interface surface to interface with a build material container outlet structure; and a retaining structure to releasably hold the build material container outlet structure in an engagement position with the interface surface of the build material nozzle structure; wherein the retaining structure comprises one or more retaining elements disposed in the build material nozzle structure to exert an attractive magnetic biasing force on the build material outlet structure to releasably hold the build material container outlet structure in the engagement position with the interface surface of the build material nozzle structure. 2 . The build material nozzle structure of claim 1 , comprising a tube extending perpendicularly from the interface surface to engage an outlet opening in the build material container outlet structure to form an aspiration channel, wherein the one or more retaining elements are disposed in an annular region of the build material nozzle structure about the tube. 3 . The build material nozzle structure of claim 2 , wherein the annular region of the build material nozzle structure is proximate to an outer wall of the tube. 4 . The build material nozzle structure of claim 2 , wherein the one or more retaining elements are circumferentially distributed in the annular region of the build material nozzle structure. 5 . The build material nozzle structure of claim 1 , wherein at least one retaining element in the one or more retaining elements is recessed in the build material nozzle structure. 6 . The build material nozzle structure of claim 5 , wherein the at least one retaining element is retained in a pocket which is recessed from the interface surface or the build material nozzle structure. 7 . The build material nozzle structure of claim 5 , wherein the at least one retaining element comprises a leading surface which is coplanar with the interface surface of the build material nozzle structure. 8 . The build material nozzle structure of claim 5 , wherein at least one retaining element is disposed in the build material nozzle structure under the interface surface. 9 . The build material nozzle structure of claim 1 , wherein the one or more retaining elements are disposed in the build material nozzle structure in an arrangement which is complementary to one or more corresponding retaining elements disposed in the build material outlet structure. 10 . The build material nozzle structure of claim 1 , wherein at least one retaining element in the one or more retaining elements comprises a magnetic element which is complementary to a magnetisable element disposed in the build material outlet structure. 11 . The build material nozzle structure of claim 1 , wherein the build material nozzle structure comprises an alignment member protruding from the interface surface to engage with an alignment socket of the build material outlet structure.

Assignees

Inventors

Classifications

  • B29C64/209Primary

    Heads; Nozzles · CPC title

  • B33Y30/00Primary

    Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

  • Auxiliary operations or equipment, e.g. for material handling · CPC title

  • Apparatus for additive manufacturing; Details thereof or accessories therefor · CPC title

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Frequently asked questions

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What does patent US2019091925A1 cover?
A build material nozzle structure ( 202 ) comprises: an interface surface ( 208 ) to interface with a build material container outlet structure ( 100 ); and a retaining structure ( 210 ) to releasably hold the build material container outlet structure in an engagement position with the interface surface of the build material nozzle structure; wherein the retaining structure comprises one or mor…
Who is the assignee on this patent?
Hewlett Packard Development Co
What technology area does this patent fall under?
Primary CPC classification B29C64/209. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Mar 28 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).