FR772902A - Improvements in processes and apparatus for blasting or blasting certain materials such as coal - Google Patents

Improvements in processes and apparatus for blasting or blasting certain materials such as coal

Info

Publication number
FR772902A
FR772902A FR772902DA FR772902A FR 772902 A FR772902 A FR 772902A FR 772902D A FR772902D A FR 772902DA FR 772902 A FR772902 A FR 772902A
Authority
FR
France
Prior art keywords
blasting
coal
processes
certain materials
materials
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)
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.)
SAFETY MINING CO
Original Assignee
SAFETY MINING CO
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 SAFETY MINING CO filed Critical SAFETY MINING CO
Application granted granted Critical
Publication of FR772902A publication Critical patent/FR772902A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
    • E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/04—Blasting cartridges, i.e. case and explosive for producing gas under pressure
    • F42B3/06—Blasting cartridges, i.e. case and explosive for producing gas under pressure with re-utilisable case
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7929—Spring coaxial with valve
    • Y10T137/7932—Valve stem extends through fixed spring abutment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
FR772902D 1933-05-27 1934-05-05 Improvements in processes and apparatus for blasting or blasting certain materials such as coal Expired FR772902A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67314633 US2083695A (en) 1933-05-27 1933-05-27 Blasting method and apparatus

Publications (1)

Publication Number Publication Date
FR772902A true FR772902A (en) 1934-11-08

Family

ID=24701489

Family Applications (1)

Application Number Title Priority Date Filing Date
FR772902D Expired FR772902A (en) 1933-05-27 1934-05-05 Improvements in processes and apparatus for blasting or blasting certain materials such as coal

Country Status (4)

Country Link
US (1) US2083695A (en)
FR (1) FR772902A (en)
GB (1) GB436468A (en)
NL (1) NL40654C (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619985A (en) * 1952-12-02 Ujnit
US3249177A (en) * 1961-11-13 1966-05-03 Bolt Associates Inc Acoustic wave impulse generator repeater
US4136851A (en) * 1976-08-25 1979-01-30 Chemetron Corporation Valve for fire extinguishing system of gas distribution type
US4285415A (en) * 1979-06-25 1981-08-25 Paitson John L Acoustic impulse generator
US4301731A (en) * 1979-09-12 1981-11-24 Zeto Industries, Inc. Air shooting system for the mining of coal or the like
US4497440A (en) * 1982-10-07 1985-02-05 Brownline Pipe Inc. Non-drain valve for sprinkler systems
CN103953342B (en) * 2014-04-11 2016-04-06 山东山矿测控技术有限公司 A kind of improvement carbon dioxide for colliery shatters device and assemble method
CN106018732B (en) * 2016-06-27 2017-12-15 河南理工大学 Gas dynamical disaster simulator stand quick release device and test method
CN106593443B (en) * 2017-02-20 2019-02-15 山东山矿测控技术有限公司 A kind of carbon dioxide blasting arrangement and method for mine, rock or coal petrography

Also Published As

Publication number Publication date
NL40654C (en) 1900-01-01
GB436468A (en) 1935-10-11
US2083695A (en) 1937-06-15

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