ZA74216B - Device for protection against noise - Google Patents

Device for protection against noise

Info

Publication number
ZA74216B
ZA74216B ZA740216A ZA74216A ZA74216B ZA 74216 B ZA74216 B ZA 74216B ZA 740216 A ZA740216 A ZA 740216A ZA 74216 A ZA74216 A ZA 74216A ZA 74216 B ZA74216 B ZA 74216B
Authority
ZA
South Africa
Prior art keywords
protection against
against noise
noise
protection
Prior art date
Application number
ZA740216A
Other languages
English (en)
Inventor
A Keller
Original Assignee
A Keller
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 A Keller filed Critical A Keller
Publication of ZA74216B publication Critical patent/ZA74216B/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0047—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with open cavities, e.g. for covering sunken roads
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/20—Reflecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
ZA740216A 1973-01-17 1974-01-11 Device for protection against noise ZA74216B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH65373A CH559952A5 (it) 1973-01-17 1973-01-17

Publications (1)

Publication Number Publication Date
ZA74216B true ZA74216B (en) 1974-11-27

Family

ID=4192022

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA740216A ZA74216B (en) 1973-01-17 1974-01-11 Device for protection against noise

Country Status (2)

Country Link
CH (1) CH559952A5 (it)
ZA (1) ZA74216B (it)

Also Published As

Publication number Publication date
CH559952A5 (it) 1975-03-14

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