EP0087403A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for treatment of an exterior circumferential area of an article by means of a radiation energy beam
Assignee: OPTIK INNOVATION OIAB AB
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Filing: 1983-02-16
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Granted: —
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Expires: 2003-02-16
Abstract
Abstract A radiation energy beam for example a laser beam (5) is directed coaxially onto a conical mirror (3) such that the beam is deflected to the radiation field which forms an angle with and extends around the axis of the conical mirror. An annular internally reflecting frusto-conical mirror (1) receives the radiation field and deflects same onto a second annular frusto-conical internally reflecting mirror (2) which deflects the radiation field toward the axis of the mirror (2). An article (6,8,9) having a circumferential area to be treated by means of the field, is placed with its circumferential area coaxial with the mirror (2) such that the circumferential area is hit by the field (50). The circumferential area of the article can consist of a tubular thermoplastics sleeve (8) which tightly surrounds the thermoplastic tube (9) to which the sleeve is to be heat sealed.
Inventors
- 👤 Ulf Jan Erik ASTERÖ
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:17
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/02; B23K26/06; B23K26/064; B23K26/0643; B23K26/073; B23K26/0734; B29; B29B; B29B13/00; B29B13/02; B29B13/023; B29B13/024; B29B13/025; B29C; B29C65/00; B29C65/02; B29C65/14; B29C65/16; B29C65/1629; B29C65/1664; B29C65/1667; B29C65/1687; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5326; B29C66/53261; B29C66/53262; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C2791/00; B29C2791/004; B29C2791/009; B29C2793/00; B29C53/00; B29C53/02; B29C53/04; B29C53/06; B29C59/00; B29C66/71; B29K; B29K2023/00; B29K2023/04; B29K2023/06; B29K2023/10; B29K2023/12; B29K2027/00; B29K2027/06; B29K2027/08; B29K2105/00; B29K2105/24; B29K2105/243; B29L; B29L2023/00; B29L2023/22; B29L2031/00; B29L2031/712; B29L2031/7148
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
175 words
Apparatus for treatment of an exterior annular circumferential area of an article by means of a radiation energy beam, especially for annular sealing of a tubular thermoplastics foil by means of a laser beam to the exterior surface of a thermoplastics tube, which is surrounded by the foil in the sealing area, characterized thereby that the first conical mirror means (3) which is located coaxial with the incident beam (5) and is arranged to deflect the incident beam to a radiation field which forms an angle to and extends around the axis (7) of the first mirror means (3), and a second annular mirror means (1,2) which is located essentially coaxial with the first mirror means (3) and is arranged to receive the radiation field and deflect same inwardly toward its axis, the circumferential area of the article being intended to be located coaxial with the second mirror means (1,2) and in such an axial position relative to said second mirror means that the circumferential area of the article is hit by the radiation field.
Claim 2
Dependent Claim
175 words
Apparatus for treatment of an exterior annular circumferential area of an article by means of a radiation energy beam, especially for annular sealing of a tubular thermoplastics foil by means of a laser beam to the exterior surface of a thermoplastics tube, which is surrounded by the foil in the sealing area, characterized thereby that the first conical mirror means (3) which is located coaxial with the incident beam (5) and is arranged to deflect the incident beam to a radiation field which forms an angle to and extends around the axis (7) of the first mirror means (3), and a second annular mirror means (1,2) which is located essentially coaxial with the first mirror means (3) and is arranged to receive the radiation field and deflect same inwardly toward its axis, the circumferential area of the article being intended to be located coaxial with the second mirror means (1,2) and in such an axial position relative to said second mirror means that the circumferential area of the article is hit by the radiation field.
Claim 3
Dependent Claim
27 words
Apparatus according to claim l,characterized thereby that the first mirror means is an externally reflecting mirror which is turned with its top facing the incident beam (5).
Claim 4
Dependent Claim
32 words
Apparatus according to claim 1, characterized in that the first mirror means (3) is an internally reflecting conical mirror which is turned with its top facing away from the incident beam (5).
Claim 5
Dependent Claim
32 words
Apparatus according to anyone of claims 1-3, characterized in that the second mirror means comprises an internally reflecting annular mirror (3) which preferably is arranged coaxial with the first mirror means (3).
Claim 6
Dependent Claim
66 words
Apparatus according to anyone of claims 1-3, characterized in that the second mirror means (1,2) comprises a first and a second annular frusto-conical internally reflecting mirror (1,2) of which the first mirror receives the radiation field from the first mirror means and deflects same toward the second annular mirror, which in turn is arranged to deflect the radiation field, preferably at right angles to its axis.
Claim 7
Dependent Claim
25 words
Apparatus according to anyone of claims 1-5, characterized in that the first and the second mirror means are formed by rotational symmetrical mirrors (3,1; 1,2,3).
Claim 8
Dependent Claim
22 words
Apparatus according to anyone of claims 3-6, characterized in that the cone angle of the first mirror means is at least 60°.
Claim 9
Dependent Claim
25 words
Apparatus according to anyone of claims 1-4, 6 and 7, characterized in that the annular mirror (1) of the second mirror means is circular cylindrical.
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