EP0046902A3 - Concrete pumping device - Google Patents

Concrete pumping device Download PDF

Info

Publication number
EP0046902A3
EP0046902A3 EP81106280A EP81106280A EP0046902A3 EP 0046902 A3 EP0046902 A3 EP 0046902A3 EP 81106280 A EP81106280 A EP 81106280A EP 81106280 A EP81106280 A EP 81106280A EP 0046902 A3 EP0046902 A3 EP 0046902A3
Authority
EP
European Patent Office
Prior art keywords
valve
delivery pipe
axis
cylinders
pumping
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.)
Withdrawn
Application number
EP81106280A
Other languages
German (de)
French (fr)
Other versions
EP0046902A2 (en
Inventor
Alfredo Brandi
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.)
Libra SA
Original Assignee
Libra SA
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 Libra SA filed Critical Libra SA
Publication of EP0046902A2 publication Critical patent/EP0046902A2/en
Publication of EP0046902A3 publication Critical patent/EP0046902A3/en
Withdrawn legal-status Critical Current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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • F04B15/023—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous supply of fluid to the pump by gravity through a hopper, e.g. without intake valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Pumping device for pasty materials, particularly con­ crete, of the type comprising two cylinders which, by way of an S-shaped valve, are connected alternatively to a delivery pipe and to a hopper placed above said valve.
In said device, the housing or tank (7) of the valve is formed by two flat parallel headwalls (8), one of which holds a first support (13) for the control shaft of the S-shaped valve (5), telescopic cylinder ends (11) connecting said valve with the pumping cylinders (1), and ribs ending into four ears (12) which make it possible to rotate the tank about vertical axes, while the other wall holds a second valve support (18) and a flange (20) of connection to the delivery pipe (4); by two partially inclined sidewalls (9) which are radiused to the bottom; and by a bottom cover formed by a cylindrical wall, the axis of which coincides with the valve rotation axis.
Moreover, in the device described, the axis of the pumping cylinders is positioned higher than the valve rotation axis and the delivery pipe.
EP81106280A 1980-09-03 1981-08-12 Concrete pumping device Withdrawn EP0046902A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT24428/80A IT1132633B (en) 1980-09-03 1980-09-03 DEVICE FOR PUMPING PASTY MATERIAL, ESPECIALLY CONCRETE
IT2442880 1980-09-03

Publications (2)

Publication Number Publication Date
EP0046902A2 EP0046902A2 (en) 1982-03-10
EP0046902A3 true EP0046902A3 (en) 1982-03-17

Family

ID=11213487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106280A Withdrawn EP0046902A3 (en) 1980-09-03 1981-08-12 Concrete pumping device

Country Status (2)

Country Link
EP (1) EP0046902A3 (en)
IT (1) IT1132633B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE22158T1 (en) * 1982-01-22 1986-09-15 Thomsen A F D Sales Service HYDROPUMP.
GB2325026B (en) * 1997-05-07 1999-03-10 Yu Lin Huang A slurry supplying mechanism
CN115324061A (en) * 2022-08-26 2022-11-11 中建桥梁有限公司 Concrete conveying device for building foundation pit pouring

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3298322A (en) * 1966-04-20 1967-01-17 Robert T Sherrod Pump for semi-fluid materials
DE1285319B (en) * 1960-08-08 1968-12-12 Schwing Friedrich Wilh Allocation device in the mass feed container of a hydraulically operated piston pump for viscous masses
US3663129A (en) * 1970-09-18 1972-05-16 Leon A Antosh Concrete pump
FR2158963A5 (en) * 1971-10-26 1973-06-15 Stetter Georg
FR2247628A1 (en) * 1973-10-12 1975-05-09 Italiana Forme Acciaio Compagn Three-way distributor for twin-cylinder concrete pump - has rotatable S-shaped pipe section connecting with one or other cylinder
US3989420A (en) * 1974-05-15 1976-11-02 J. I. Case Company Concrete pumping apparatus
FR2359290A1 (en) * 1976-07-21 1978-02-17 Schwing Gmbh F TWO CYLINDER PUMP, ESPECIALLY FOR CONCRETE TRANSFER
DE2814845A1 (en) * 1978-04-06 1979-10-11 Stetter Gmbh Concrete pumping unit storage and delivery mechanism - has slide valve facing which accommodates S=shaped pivot pipe and bearing supporting two frame profiles

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1285319B (en) * 1960-08-08 1968-12-12 Schwing Friedrich Wilh Allocation device in the mass feed container of a hydraulically operated piston pump for viscous masses
US3298322A (en) * 1966-04-20 1967-01-17 Robert T Sherrod Pump for semi-fluid materials
US3663129A (en) * 1970-09-18 1972-05-16 Leon A Antosh Concrete pump
FR2158963A5 (en) * 1971-10-26 1973-06-15 Stetter Georg
FR2247628A1 (en) * 1973-10-12 1975-05-09 Italiana Forme Acciaio Compagn Three-way distributor for twin-cylinder concrete pump - has rotatable S-shaped pipe section connecting with one or other cylinder
US3989420A (en) * 1974-05-15 1976-11-02 J. I. Case Company Concrete pumping apparatus
FR2359290A1 (en) * 1976-07-21 1978-02-17 Schwing Gmbh F TWO CYLINDER PUMP, ESPECIALLY FOR CONCRETE TRANSFER
DE2814845A1 (en) * 1978-04-06 1979-10-11 Stetter Gmbh Concrete pumping unit storage and delivery mechanism - has slide valve facing which accommodates S=shaped pivot pipe and bearing supporting two frame profiles

Also Published As

Publication number Publication date
IT1132633B (en) 1986-07-02
EP0046902A2 (en) 1982-03-10
IT8024428A0 (en) 1980-09-03

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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

PUAL Search report despatched

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LU NL SE

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LU NL SE

17P Request for examination filed

Effective date: 19820814

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840301

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BRANDI, ALFREDO