EP1126174A3 - Plastic gear for gear pump - Google Patents

Plastic gear for gear pump Download PDF

Info

Publication number
EP1126174A3
EP1126174A3 EP01100349A EP01100349A EP1126174A3 EP 1126174 A3 EP1126174 A3 EP 1126174A3 EP 01100349 A EP01100349 A EP 01100349A EP 01100349 A EP01100349 A EP 01100349A EP 1126174 A3 EP1126174 A3 EP 1126174A3
Authority
EP
European Patent Office
Prior art keywords
gear
plastic
pump
gear pump
media
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.)
Granted
Application number
EP01100349A
Other languages
German (de)
French (fr)
Other versions
EP1126174B1 (en
EP1126174A2 (en
Inventor
Alexander Maute
Willi Schneider
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.)
Joma Hydromechanic GmbH
Original Assignee
Joma Hydromechanic 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 Joma Hydromechanic GmbH filed Critical Joma Hydromechanic GmbH
Publication of EP1126174A2 publication Critical patent/EP1126174A2/en
Publication of EP1126174A3 publication Critical patent/EP1126174A3/en
Application granted granted Critical
Publication of EP1126174B1 publication Critical patent/EP1126174B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/084—Toothed wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/12—Polyetheretherketones, e.g. PEEK

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Gears, Cams (AREA)
  • Laminated Bodies (AREA)

Abstract

The plastic gearwheel (20) for a gear pump comprises teeth (26) with at least one hollow space (32) which is either closed with a cover plate (46), or is filled with a media and temperature resistant foam material of low specific weight.
EP01100349A 2000-02-14 2001-01-05 Plastic gear for gear pump Expired - Lifetime EP1126174B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10006629 2000-02-14
DE10006629A DE10006629C2 (en) 2000-02-14 2000-02-14 Plastic gear wheel for a gear pump and method for its production

Publications (3)

Publication Number Publication Date
EP1126174A2 EP1126174A2 (en) 2001-08-22
EP1126174A3 true EP1126174A3 (en) 2002-06-19
EP1126174B1 EP1126174B1 (en) 2004-05-26

Family

ID=7630939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01100349A Expired - Lifetime EP1126174B1 (en) 2000-02-14 2001-01-05 Plastic gear for gear pump

Country Status (3)

Country Link
EP (1) EP1126174B1 (en)
AT (1) ATE267958T1 (en)
DE (2) DE10006629C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT507284A1 (en) 2008-09-05 2010-03-15 Pkt Praez Skunststofftechnik B ROTOR SET FOR A ROTOR PUMP AND ROTOR PUMP
DE102019117394A1 (en) * 2019-06-27 2020-12-31 Interroll Holding Ag Sprocket, drum motor, semi-finished sprocket and method for manufacturing a sprocket

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316295A (en) * 1928-07-27 1930-05-15 Leblanc Vickers Maurice Sa Improvements in or relating to rotary compressors
US3887979A (en) * 1974-03-06 1975-06-10 Minoru Kamiya Manufacturing process of a rolled gear
US4571005A (en) * 1983-12-16 1986-02-18 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Wheel, especially disk wheel
US5468132A (en) * 1992-01-07 1995-11-21 Snell (Hydro Design) Consultancy Limited Water turbines
EP0791750A1 (en) * 1996-02-21 1997-08-27 Ebara Corporation Rotor for turbomachine and method of making the same
GB2322095A (en) * 1997-02-13 1998-08-19 Ctp Davall Limited Moulded parts used as power and/or motion transmission components
DE29810548U1 (en) * 1998-06-16 1998-12-17 Joma Polytec Gmbh Gear for a gear pump

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2944732A (en) * 1955-02-24 1960-07-12 Heraeus Gmbh W C Vacuum pumps

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB316295A (en) * 1928-07-27 1930-05-15 Leblanc Vickers Maurice Sa Improvements in or relating to rotary compressors
US3887979A (en) * 1974-03-06 1975-06-10 Minoru Kamiya Manufacturing process of a rolled gear
US4571005A (en) * 1983-12-16 1986-02-18 Messerschmitt-Boelkow-Blohm Gesellschaft Mit Beschraenkter Haftung Wheel, especially disk wheel
US5468132A (en) * 1992-01-07 1995-11-21 Snell (Hydro Design) Consultancy Limited Water turbines
EP0791750A1 (en) * 1996-02-21 1997-08-27 Ebara Corporation Rotor for turbomachine and method of making the same
GB2322095A (en) * 1997-02-13 1998-08-19 Ctp Davall Limited Moulded parts used as power and/or motion transmission components
DE29810548U1 (en) * 1998-06-16 1998-12-17 Joma Polytec Gmbh Gear for a gear pump

Also Published As

Publication number Publication date
EP1126174B1 (en) 2004-05-26
EP1126174A2 (en) 2001-08-22
DE50102371D1 (en) 2004-07-01
DE10006629A1 (en) 2001-08-23
ATE267958T1 (en) 2004-06-15
DE10006629C2 (en) 2002-06-27

Similar Documents

Publication Publication Date Title
USD483494S1 (en) Sterilizing container lid interior
ZA978470B (en) Flexible plastic container with three chambers.
AU693200B2 (en) Key provided with built-in transmitter element
HK1054959A1 (en) Polycarbonate molding materials containing graft rubber.
HUP9700985A2 (en) Demonstration device
CA2308060A1 (en) Book constructed of foam
AU2001296906A1 (en) Repository for jobseekers' references on the internet
ZA972101B (en) Medium for the preservation of a biological material.
EP0576362A3 (en) Thermally stable und chemically resistant glasses.
AU7076694A (en) Assembly comprising at least two separate portions, such as a suitcase with a lid, a vehicle with doors or the like
EP1126174A3 (en) Plastic gear for gear pump
CA2344330A1 (en) Leash assembly having pet refuse bag dispenser mechanism
EP0955243A3 (en) Plastic foil with a non-stick coating
EP1212975A3 (en) Linear transmission member driving unit for endoscope with rotation stopper mechanism
NO306955B1 (en) Use of a polyurethane elastomer formulation as cushioning material
MXPA03007576A (en) Container for receiving plates.
WO2003049246A3 (en) Housing made of fire-inhibiting material
HU0201837D0 (en)
EP0679494A3 (en) Improved press for the injection moulding of plastic materials with a double-toggle closing unit.
BR0002340A (en) Dispenser for personal use products on the body
EP0714016A3 (en) Container, particularly with flexible inner part
USD402461S (en) Displayable watch container
USD425999S (en) Crystal and mirror exterior and interior trim
DE69506805D1 (en) Double chamber dispenser with flexible walls
SI1129819T1 (en) Casing element with bearing for transmission

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020709

17Q First examination report despatched

Effective date: 20021126

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040526

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040526

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20040526

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50102371

Country of ref document: DE

Date of ref document: 20040701

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040826

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20040526

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050105

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050131

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050301

EN Fr: translation not filed
BERE Be: lapsed

Owner name: *JOMA-HYDROMECHANIC G.M.B.H.

Effective date: 20050131

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

BERE Be: lapsed

Owner name: *JOMA-HYDROMECHANIC G.M.B.H.

Effective date: 20050131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20041026

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20100319

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50102371

Country of ref document: DE

Effective date: 20110802

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110802