DE29701495U1 - Non-return valve - Google Patents

Non-return valve

Info

Publication number
DE29701495U1
DE29701495U1 DE29701495U DE29701495U DE29701495U1 DE 29701495 U1 DE29701495 U1 DE 29701495U1 DE 29701495 U DE29701495 U DE 29701495U DE 29701495 U DE29701495 U DE 29701495U DE 29701495 U1 DE29701495 U1 DE 29701495U1
Authority
DE
Germany
Prior art keywords
return valve
return
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE29701495U
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Battenfeld GmbH
Original Assignee
Battenfeld GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Battenfeld GmbH filed Critical Battenfeld GmbH
Priority to DE29701495U priority Critical patent/DE29701495U1/en
Publication of DE29701495U1 publication Critical patent/DE29701495U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return devices
DE29701495U 1997-01-30 1997-01-30 Non-return valve Expired - Lifetime DE29701495U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29701495U DE29701495U1 (en) 1997-01-30 1997-01-30 Non-return valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29701495U DE29701495U1 (en) 1997-01-30 1997-01-30 Non-return valve

Publications (1)

Publication Number Publication Date
DE29701495U1 true DE29701495U1 (en) 1997-03-27

Family

ID=8035200

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29701495U Expired - Lifetime DE29701495U1 (en) 1997-01-30 1997-01-30 Non-return valve

Country Status (1)

Country Link
DE (1) DE29701495U1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19849472C2 (en) * 1998-10-21 2002-11-28 Demag Ergotech Gmbh Non-return valve for the plasticizing and injection screw in injection molding machines
DE10306476B3 (en) * 2003-02-14 2004-08-12 Schürmann, Erich, Prof. Dr.-Ing. Injection assembly, for an injection molding machine, has a forced mixing zone at the piston between the sealing zone and the screw to give a defined mixing action with low maintenance
DE10306914A1 (en) * 2003-02-19 2004-09-09 Ulrike Gegenheimer Non-return valve to prevent backflow during metering of injected melt has a housing and inner bush fixed together by pins which fix axial locations of cheeks which move in guide slots
US7267534B2 (en) 1999-04-02 2007-09-11 Trexel, Inc. Methods for manufacturing foam material including systems with pressure restriction element
DE19947460B4 (en) * 1999-10-02 2008-01-31 Reiloy Metall Gmbh Screw piston injection machine for the processing of at least partially liquefied metal melts
CN112743759A (en) * 2019-10-31 2021-05-04 住友重机械工业株式会社 Injection molding machine
DE102022112811A1 (en) 2022-05-20 2023-11-23 Wittmann Battenfeld Gmbh Plasticizing and/or injection unit of a plastics processing machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD94485A (en) *
DE2006389A1 (en) * 1970-02-03 1971-09-09 Battenfeld Geb Backflow stop for screw piston machines for the injection of extrudable plastic masses

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD94485A (en) *
DE2006389A1 (en) * 1970-02-03 1971-09-09 Battenfeld Geb Backflow stop for screw piston machines for the injection of extrudable plastic masses

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19849472C2 (en) * 1998-10-21 2002-11-28 Demag Ergotech Gmbh Non-return valve for the plasticizing and injection screw in injection molding machines
US7267534B2 (en) 1999-04-02 2007-09-11 Trexel, Inc. Methods for manufacturing foam material including systems with pressure restriction element
DE19947460B4 (en) * 1999-10-02 2008-01-31 Reiloy Metall Gmbh Screw piston injection machine for the processing of at least partially liquefied metal melts
DE10306476B3 (en) * 2003-02-14 2004-08-12 Schürmann, Erich, Prof. Dr.-Ing. Injection assembly, for an injection molding machine, has a forced mixing zone at the piston between the sealing zone and the screw to give a defined mixing action with low maintenance
DE10306914A1 (en) * 2003-02-19 2004-09-09 Ulrike Gegenheimer Non-return valve to prevent backflow during metering of injected melt has a housing and inner bush fixed together by pins which fix axial locations of cheeks which move in guide slots
DE10306914B4 (en) * 2003-02-19 2005-03-24 Ulrike Gegenheimer Backflow lock to limit the return flow during dosing
CN112743759A (en) * 2019-10-31 2021-05-04 住友重机械工业株式会社 Injection molding machine
CN112743759B (en) * 2019-10-31 2023-05-26 住友重机械工业株式会社 Injection molding machine
DE102022112811A1 (en) 2022-05-20 2023-11-23 Wittmann Battenfeld Gmbh Plasticizing and/or injection unit of a plastics processing machine

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 19970507

R163 Identified publications notified

Effective date: 19970604

R150 Term of protection extended to 6 years

Effective date: 20000425

R151 Term of protection extended to 8 years

Effective date: 20030204

R158 Lapse of ip right after 8 years

Effective date: 20050802