FR2256992B3 - - Google Patents

Info

Publication number
FR2256992B3
FR2256992B3 FR7500611A FR7500611A FR2256992B3 FR 2256992 B3 FR2256992 B3 FR 2256992B3 FR 7500611 A FR7500611 A FR 7500611A FR 7500611 A FR7500611 A FR 7500611A FR 2256992 B3 FR2256992 B3 FR 2256992B3
Authority
FR
France
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
Application number
FR7500611A
Other versions
FR2256992A1 (fr
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.)
PNEUMA INTERNATIONAL SA
Original Assignee
PNEUMA INTERNATIONAL 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 PNEUMA INTERNATIONAL SA filed Critical PNEUMA INTERNATIONAL SA
Publication of FR2256992A1 publication Critical patent/FR2256992A1/fr
Application granted granted Critical
Publication of FR2256992B3 publication Critical patent/FR2256992B3/fr
Expired 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
    • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
    • F04F1/00—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped
    • F04F1/06—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped
    • F04F1/10—Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped the fluid medium acting on the surface of the liquid to be pumped of multiple type, e.g. with two or more units in parallel
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/92—Digging elements, e.g. suction heads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Reciprocating Pumps (AREA)
FR7500611A 1974-01-04 1975-01-03 Expired FR2256992B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT19113/74A IT1006741B (it) 1974-01-04 1974-01-04 Perfezionamento nelle apparecchia ture di dragaggio

Publications (2)

Publication Number Publication Date
FR2256992A1 FR2256992A1 (fr) 1975-08-01
FR2256992B3 true FR2256992B3 (fr) 1977-09-30

Family

ID=11154745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7500611A Expired FR2256992B3 (fr) 1974-01-04 1975-01-03

Country Status (8)

Country Link
US (1) US3994082A (fr)
JP (1) JPS5736376B2 (fr)
BR (1) BR7500025A (fr)
CA (1) CA1015779A (fr)
DE (1) DE2455944A1 (fr)
FR (1) FR2256992B3 (fr)
GB (1) GB1493360A (fr)
IT (1) IT1006741B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4307525A (en) * 1979-08-16 1981-12-29 Amtec Development Company Pneumatic-hydraulic pump dredge
US4353174A (en) * 1980-08-11 1982-10-12 Amtec Development Company Electronic control system for pneumatic-hydraulic pump dredge
US4501292A (en) * 1982-04-08 1985-02-26 Ametc Development Company Ball-type check valve
JPS60157673U (ja) * 1984-03-30 1985-10-21 ライオン株式会社 液体用可変定量排出容器
JPS60161078U (ja) * 1984-04-02 1985-10-25 ライオン株式会社 液体用可変定量排出容器
JPS6340378U (fr) * 1986-09-02 1988-03-16
JPS6340377U (fr) * 1986-09-02 1988-03-16
US4945661A (en) * 1988-11-29 1990-08-07 Ube Industries, Ltd. Dredging apparatus
US6860042B2 (en) * 2002-07-19 2005-03-01 Walker-Dawson Interests, Inc. Excavation system employing a jet pump
US9200427B2 (en) * 2012-06-20 2015-12-01 Richard John Phillips Dredging head apparatus
CN107630485B (zh) * 2017-11-10 2023-04-21 上海振华重工(集团)股份有限公司 外海深水先铺碎石基床面清淤***及清淤船
KR102555109B1 (ko) * 2021-05-18 2023-07-17 신성환 지주 시설물용 까치집 방지기구
CN114775718B (zh) * 2022-05-17 2023-02-21 重庆交通大学 一种港口航道防堵塞的清淤装置

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US672247A (en) * 1900-05-14 1901-04-16 Harry Roberts Wheeler Dredging apparatus.
US1600505A (en) * 1921-10-01 1926-09-21 Sullivan Machinery Co Control mechanism
US2003779A (en) * 1933-03-07 1935-06-04 John R Pusey Mining system and apparatus
US3552884A (en) * 1967-07-20 1971-01-05 Giovanni Faldi Fluid pumping station working on the compressed air principle with partial recovery and re-cycling of the air
DE1929111C3 (de) * 1968-06-17 1979-02-22 Giovanni Florenz Faldi (Italien) Saugbaggervorrichtung
US3540194A (en) * 1968-10-02 1970-11-17 Merle P Chaplin Method of removing marine growths and roots
DE7000826U (de) * 1969-01-24 1970-04-23 Giovanni Faldi Druckluftpumpe insbesondere fuer beton
FR2043460A6 (fr) * 1969-04-30 1971-02-19 Sogreah
US3842522A (en) * 1970-11-10 1974-10-22 Klein Schanzlin & Becker Ag Method for hydraulically raising ore and other materials
DE2063968A1 (de) * 1970-12-28 1972-07-13 Schnell, Ludwig Lorenz, 7081 Aufhausen Vorrichtung zum Fördern von Sand, Kies oder anderen Schüttgüten
JPS4945500B2 (fr) * 1971-12-06 1974-12-04
JPS5019859B2 (fr) * 1972-02-21 1975-07-10

Also Published As

Publication number Publication date
GB1493360A (en) 1977-11-30
US3994082A (en) 1976-11-30
JPS5736376B2 (fr) 1982-08-03
BR7500025A (pt) 1975-11-04
AU7660174A (en) 1976-06-24
IT1006741B (it) 1976-10-20
DE2455944A1 (de) 1975-07-17
JPS50117230A (fr) 1975-09-13
FR2256992A1 (fr) 1975-08-01
CA1015779A (en) 1977-08-16

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Legal Events

Date Code Title Description
ST Notification of lapse
TP Transmission of property