EP0615907B1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
A device for ultrasonic sealing
Assignee: Tetra Laval Holdings and Finance SA
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Filing: 1994-02-25
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Granted: 1997-10-15
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Expires: 2014-02-25
Abstract
Abstract The invention relates to a device for ultrasonic sealing, of compact constructional dimensions, consisting of a drive unit (1), a horn (7) with a long and narrow sealing surface (8), and one or more reaction bodies (9). The length of the device consists of a half wave length. <IMAGE>
Inventors
- 👤 Hakan Olsson
- 👤 Magnus Rabe
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 10:46
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B06; B06B; B06B3/00; B29C66/00; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/8145; B29C66/816; B29C66/8167; B29C66/90; B29C66/95; B29C66/959; B29C66/9592; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72321; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/84; B29C66/849; B29K; B29K2705/00; B29K2705/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
69 words
A device for ultrasonic sealing, comprising a drive unit (1) connected to a A.C. current source, and a horn (7), characterized in that the device further includes one or more reaction bodies (9), attached to the horn (7) at a nodal plane (5) and placed so as to surround the drive unit (1) and that the reaction bodies (9) together with the horn (7), constitute a half wave length.
Claim 2
Dependent Claim
20 words
The device as claimed in Claim 1, charaterized in that the drive unit (1) consists of piezoelectric ceramic plates (2).
Claim 3
Dependent Claim
19 words
The device as claimed in Claim 1, characterized in that the drive unit (1) consists of a magnetostrictive unit.
Claim 4
Independent Claim
24 words
The device as claimed in one of the preceding claims, characterized in that the horn (7) has a long and narrow sealing surface (8).
Claim 5
Dependent Claim
33 words
The device as claimed in Claim 4, characterized in that the horn (7) has, from its largest extent, at the nodal plane (5) to the sealing surface (8), a curved side surface (11).
Claim 6
Dependent Claim
18 words
The device as claimed in Claim 4, charcterized in that the horn (7) has exponential or exponential-like configuration.
Claim 7
Dependent Claim
16 words
The device as claimed in Claim 4, characterized in that the horn (7) has catenoid configuration.
Claim 8
Independent Claim
22 words
The device as claimed in one of the preceding claims, characterized in that the reaction bodies (9) have a curved surface (12).
Claim 9
Independent Claim
31 words
The device as claimed in one of the preceding claims, characterized in that the reaction bodies (9) are of substantially parallelepipedic configuration which is somewhat concave towards the drive unit (1).
Claim 10
Independent Claim
30 words
The device as claimed in one of the preceding claims, characterized in that the reaction bodies (9) are of exponential configuration which is somewhat concave towards the drive unit (1).
Claim 11
Independent Claim
22 words
The device as claimed in one of the preceding claims, characterized in that the nodal plane (5) constitutes a mechanical fixation point.
Claim 12
Independent Claim
25 words
The device as claimed in one of the preceding claims, charcterized in that the horn (7) and the reaction bodies (9) are of light metal.
Claim 13
Dependent Claim
16 words
The device as claimed in Claim 12, characterized in that the light metal consists of aluminium.
References Cited (Backward Citations)
No citation records indexed.
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