FR63268E - Further development of automatic clamshells - Google Patents

Further development of automatic clamshells

Info

Publication number
FR63268E
FR63268E FR63268DA FR63268E FR 63268 E FR63268 E FR 63268E FR 63268D A FR63268D A FR 63268DA FR 63268 E FR63268 E FR 63268E
Authority
FR
France
Prior art keywords
clamshells
automatic
further development
development
automatic clamshells
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
Application number
Other languages
French (fr)
Inventor
Jean-Joseph Geffroy
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 filed Critical
Application granted granted Critical
Publication of FR63268E publication Critical patent/FR63268E/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
    • B66C3/02—Bucket grabs
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B11/00—Other drilling tools
    • E21B11/04—Boring grabs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR63268D 1952-09-02 1952-09-02 Further development of automatic clamshells Expired FR63268E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR63268T 1952-09-02

Publications (1)

Publication Number Publication Date
FR63268E true FR63268E (en) 1955-09-12

Family

ID=8696540

Family Applications (1)

Application Number Title Priority Date Filing Date
FR63268D Expired FR63268E (en) 1952-09-02 1952-09-02 Further development of automatic clamshells

Country Status (1)

Country Link
FR (1) FR63268E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315547A1 (en) * 1987-11-05 1989-05-10 SOLETANCHE Société Anonyme dite: Bucket excavator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0315547A1 (en) * 1987-11-05 1989-05-10 SOLETANCHE Société Anonyme dite: Bucket excavator
FR2622910A1 (en) * 1987-11-05 1989-05-12 Soletanche EXCAVATOR BENCH WITH GODETS
US4882859A (en) * 1987-11-05 1989-11-28 Soletanche Excavating bucket having scoops

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