FR2261861B1 - - Google Patents

Info

Publication number: FR2261861B1
Authority: FR; France
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

FR7406422A

Other languages

Other versions

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.)

Ashland Optical Corp

Original Assignee

Ashland Optical Corp

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.)

1974-02-26

Filing date

1974-02-26

Publication date

1977-06-10

1974-02-26 Application filed by Ashland Optical Corp filed Critical Ashland Optical Corp

1974-02-26 Priority to FR7406422A priority Critical patent/FR2261861A1/fr

1975-09-19 Publication of FR2261861A1 publication Critical patent/FR2261861A1/fr

1977-06-10 Application granted granted Critical

1977-06-10 Publication of FR2261861B1 publication Critical patent/FR2261861B1/fr

Status Granted legal-status Critical Current

Classifications

- 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
- B29D11/00009—Production of simple or compound lenses
- B29D11/0048—Moulds for lenses
- B29D11/00528—Consisting of two mould halves joined by an annular gasket
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
- 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
- B29D11/00009—Production of simple or compound lenses
- B29D11/00413—Production of simple or compound lenses made by moulding between two mould parts which are not in direct contact with one another, e.g. comprising a seal between or on the edges
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/76—Office equipment or accessories
- B29L2031/7602—Maps

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Health & Medical Sciences (AREA)
Manufacturing & Machinery (AREA)
Ophthalmology & Optometry (AREA)
Moulds For Moulding Plastics Or The Like (AREA)
Casting Or Compression Moulding Of Plastics Or The Like (AREA)

FR7406422A 1974-02-26 1974-02-26 Plastic optical (spectacle) lens casting mould - with mould discs located in grooved resilient sleeve in closable casing for economical quantity prodn Granted FR2261861A1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
FR7406422A FR2261861A1 (en)	1974-02-26	1974-02-26	Plastic optical (spectacle) lens casting mould - with mould discs located in grooved resilient sleeve in closable casing for economical quantity prodn

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7406422A FR2261861A1 (en)	1974-02-26	1974-02-26	Plastic optical (spectacle) lens casting mould - with mould discs located in grooved resilient sleeve in closable casing for economical quantity prodn

Publications (2)

Publication Number	Publication Date
FR2261861A1 FR2261861A1 (en)	1975-09-19
FR2261861B1 true FR2261861B1 (da)	1977-06-10

Family

ID=9135441

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7406422A Granted FR2261861A1 (en)	1974-02-26	1974-02-26	Plastic optical (spectacle) lens casting mould - with mould discs located in grooved resilient sleeve in closable casing for economical quantity prodn

Country Status (1)

Country	Link
FR (1)	FR2261861A1 (da)

1974
- 1974-02-26 FR FR7406422A patent/FR2261861A1/fr active Granted

Also Published As

Publication number	Publication date
FR2261861A1 (en)	1975-09-19

Publication	Publication Date	Title
AU7462274A (da)	1976-04-29
AU7459574A (da)	1976-04-29
AU488280B2 (da)	1976-07-15
AR199089A1 (da)	1974-08-08
FR2261861B1 (da)	1977-06-10
BG19927A1 (da)	1975-10-30
BG19879A1 (da)	1975-10-30
AU481915A (da)	1975-09-11
AU482171A (da)	1975-10-16
AU482236A (da)	1976-05-06
AU482308A (da)	1975-12-18
AU482332A (da)	1976-02-12
AU481516A (da)	1975-07-10
AU480783A (da)	1976-06-24
AU480371A (da)	1975-04-24
BE833391A (da)	1975-12-31
BG19609A2 (da)	1975-10-10
BG19639A1 (da)	1975-10-10
BG20431A1 (da)	1975-12-05
BG19729A1 (da)	1975-12-20
BG20242A1 (da)	1975-11-05
BG19890A1 (da)	1975-10-30
BG19905A1 (da)	1975-10-30
BG19908A1 (da)	1975-10-30
AU480187A (da)	1976-01-08

Legal Events

Date	Code	Title	Description
1980-11-21	ST	Notification of lapse