FR1009490A - étançon de mines - Google Patents

étançon de mines

Info

Publication number: FR1009490A
Authority: FR; France
Prior art keywords: mine prop; prop; mine
Prior art date: 1949-02-28
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

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.)

Becorit Grubenausbau GmbH

Original Assignee

Becorit Grubenausbau 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.)

1949-02-28

Filing date

1950-01-28

Publication date

1952-05-29

1950-01-28 Application filed by Becorit Grubenausbau GmbH filed Critical Becorit Grubenausbau GmbH

1952-05-29 Application granted granted Critical

1952-05-29 Publication of FR1009490A publication Critical patent/FR1009490A/fr

Status Expired legal-status Critical Current

Classifications

- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Mechanical Engineering (AREA)
Structural Engineering (AREA)
Life Sciences & Earth Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Geology (AREA)

FR1009490D 1949-02-28 1950-01-28 étançon de mines Expired FR1009490A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE1009490X		1949-02-28

Publications (1)

Publication Number	Publication Date
FR1009490A true FR1009490A (fr)	1952-05-29

Family

ID=7669659

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR1009490D Expired FR1009490A (fr)	1949-02-28	1950-01-28	étançon de mines

Country Status (1)

Country	Link
FR (1)	FR1009490A (fr)

1950
- 1950-01-28 FR FR1009490D patent/FR1009490A/fr not_active Expired

Similar Documents

Publication	Publication Date	Title
CH286541A (fr)	1952-10-31	Mine antichar.
FR991406A (fr)	1951-10-05	étançon de mine
FR1013702A (fr)	1952-08-04	étançon de mine
FR1017177A (fr)	1952-12-03	étançon de mine
FR1009490A (fr)	1952-05-29	étançon de mines
FR1009056A (fr)	1952-05-26	étai de mine
FR59376E (fr)	1954-05-25	étançon de mine
FR1002757A (fr)	1952-03-10	Perfectionnements aux étais de mines
FR1015645A (fr)	1952-10-16	étai de mine réglable
FR1004614A (fr)	1952-04-01	étançon pour mines
FR1027658A (fr)	1953-05-13	étançon de mines en deux éléments
FR1008513A (fr)	1952-05-19	étançon de mine
FR60553E (fr)	1954-11-09	étançon de mine
FR989336A (fr)	1951-09-07	étançon de mine hydraulique
FR1028960A (fr)	1953-05-29	étançon de mine métallique
FR1060827A (fr)	1954-04-06	étai hydraulique de mine
FR1020062A (fr)	1953-02-02	Perfectionnements apportés aux étançons de mines
FR1009955A (fr)	1952-06-05	Soutènement de galerie de mine
FR1059603A (fr)	1954-03-26	étançon de mine
FR1022030A (fr)	1953-02-26	étançon de mine pneumatique ou hydraulique
FR1009846A (fr)	1952-06-04	Poteau de mine
FR987254A (fr)	1951-08-10	étancon de mine en deux parties
FR1053832A (fr)	1954-02-05	étançon de mine
FR1016382A (fr)	1952-11-10	étançon de mine
FR990112A (fr)	1951-09-18	étançon de mine en fer