AT331679B - METHOD FOR PRODUCING COMPOSITE RETURN ELEMENT - Google Patents

METHOD FOR PRODUCING COMPOSITE RETURN ELEMENT

Info

Publication number
AT331679B
AT331679B AT28673*#A AT28673A AT331679B AT 331679 B AT331679 B AT 331679B AT 28673 A AT28673 A AT 28673A AT 331679 B AT331679 B AT 331679B
Authority
AT
Austria
Prior art keywords
return element
producing composite
composite return
producing
return
Prior art date
Application number
AT28673*#A
Other languages
German (de)
Other versions
ATA28673A (en
Original Assignee
Eigenmann Ludwig
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
Priority claimed from IT1942372A external-priority patent/IT946620B/en
Priority claimed from IT2649972A external-priority patent/IT1003066B/en
Application filed by Eigenmann Ludwig filed Critical Eigenmann Ludwig
Publication of ATA28673A publication Critical patent/ATA28673A/en
Application granted granted Critical
Publication of AT331679B publication Critical patent/AT331679B/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/126—Reflex reflectors including curved refracting surface
    • G02B5/128—Reflex reflectors including curved refracting surface transparent spheres being embedded in matrix
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00605—Production of reflex reflectors
    • B29D11/00615—Production of reflex reflectors moulded by partially embedding reflective elements, e.g. glass beads, into the surface of a support, e.g. to make prefabricated road markings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F1/00—Designs or pictures characterised by special or unusual light effects
    • B44F1/02—Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces
    • B44F1/04—Designs or pictures characterised by special or unusual light effects produced by reflected light, e.g. matt surfaces, lustrous surfaces after passage through surface layers, e.g. pictures with mirrors on the back
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/506—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users characterised by the road surface marking material, e.g. comprising additives for improving friction or reflectivity; Methods of forming, installing or applying markings in, on or to road surfaces
    • E01F9/524—Reflecting elements specially adapted for incorporation in or application to road surface markings
    • 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
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/553—Low discrete bodies, e.g. marking blocks, studs or flexible vehicle-striking members

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Road Signs Or Road Markings (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
AT28673*#A 1972-01-15 1973-01-15 METHOD FOR PRODUCING COMPOSITE RETURN ELEMENT AT331679B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1942372A IT946620B (en) 1972-01-15 1972-01-15 PROCEDURE FOR THE INDUSTRIAL PRODUCTION OF DOUBLE-FOCUSED CATARIFRAN GENTI ELEMENTS FOR ROAD SIGNS AND EQUIVALEN US USE AND PRODUCT OBTAINED WITH THE SAID PROCESS
IT2649972A IT1003066B (en) 1972-07-01 1972-07-01 IMPROVEMENT OF THE PROCESSES FOR THE INDUSTRIAL PRODUCTION OF MULTIPLE CATOPLE FOCUSING REFLECTIVE ELEMENTS AND RELATED PRODUCTS, IN PARTICULAR FOR TRAFFIC SIGNS

Publications (2)

Publication Number Publication Date
ATA28673A ATA28673A (en) 1975-11-15
AT331679B true AT331679B (en) 1976-08-25

Family

ID=26327160

Family Applications (1)

Application Number Title Priority Date Filing Date
AT28673*#A AT331679B (en) 1972-01-15 1973-01-15 METHOD FOR PRODUCING COMPOSITE RETURN ELEMENT

Country Status (4)

Country Link
JP (1) JPS4880291A (en)
AT (1) AT331679B (en)
GB (1) GB1415792A (en)
NL (1) NL7300593A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2632107C2 (en) * 1975-07-16 1986-01-09 Ludwig Dr. Vacallo Tessin Eigenmann Reflective unit for marking material for horizontal road marking
JPH0354816U (en) * 1989-09-28 1991-05-27
US6978896B2 (en) * 2002-04-11 2005-12-27 3M Innovative Properties Company Method of making retrochromic beads and kit thereof
US7036944B2 (en) 2002-04-11 2006-05-02 3M Innovative Properties Company Retrochromic articles
US10858496B2 (en) 2015-09-11 2020-12-08 3M Innovative Properties Company Durable retroreflective elements with a blend of beads
US11353640B2 (en) 2015-09-11 2022-06-07 3M Innovative Properties Company Durable retroreflective elements with an ionic copolymer core

Also Published As

Publication number Publication date
GB1415792A (en) 1975-11-26
NL7300593A (en) 1973-07-17
ATA28673A (en) 1975-11-15
JPS4880291A (en) 1973-10-27

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification