US4982890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering means having at least one stirrup electrode and two soldering webs lying opposite one another or four soldering webs lying opposite one another in pairs
Assignee: Siemens AG
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Filing: 1989-12-01
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Granted: 1991-01-08
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Expires: 2009-12-01
Abstract
Abstract In a soldering device comprising at least one stirrup electrode that is secured to a soldering stirrup holder and is heatable with electrical resistance heating and has two soldering webs lying opposite one another or four soldering webs lying opposite one another in pairs, the working surfaces at the underside of the soldering webs should be capable of being placed exactly parallel onto the soldering location that lies, for example, on a printed circuitboard. This is enabled by a flexible suspension of the soldering stirrup holder which provides a pivot compensation center lying centrally in the plane of the working surfaces. As a result thereof, a reliable contact of the parts to be soldered to one another and to the soldering stirrups is guaranteed.
Inventors
- 👤 Rudolf Schuster
- 👤 Josef Raschke
- 👤 Klaus Kamperdicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:19
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/04; B23K3/047; B23K3/0471; H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3494
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
In a soldering device of the type in which at least one soldering stirrup electrode adapted to be heated by electrical resistance heating is carried by a soldering stirrup holder and comprises a plurality of soldering webs lying opposite one another in pairs and include working surfaces which lie in one plane, the improvement therein comprising: a flexible suspension mounting the soldering stirrup holder for movement about a pivot and compensation center which lies centrally in the one plane of the working surfaces.
Claim 2
Dependent Claim
83 words
In a soldering device of the type in which at least one soldering stirrup electrode adapted to be heated by electrical resistance heating is carried by a soldering stirrup holder and comprises a plurality of soldering webs lying opposite one another in pairs and include working surfaces which lie in one plane, the improvement therein comprising: a flexible suspension mounting the soldering stirrup holder for movement about a pivot and compensation center which lies centrally in the one plane of the working surfaces.
Claim 3
Dependent Claim
32 words
The improved soldering device of claim 1, wherein said flexible suspension comprises *eans for providing excursions of the soldering stirrup holder around the pivot compensation center which are free of restoring forces.
Claim 4
Dependent Claim
23 words
The improved soldering device of claim 1, and further comprising: anti-twist means for preventing movement about an axis perpendicular to the working surfaces.
Claim 5
Dependent Claim
114 words
In a soldering device of the type in which at least one soldering stirrup electrode adapted to be heated by electrical resistance heating is carried by a soldering stirrup holder and comprises a plurality of soldering webs lying opposite one another in pairs and include working surfaces which lie in one plane, the improvement therein comprising: a flexible suspension mounting the soldering stirrup holder for movement about a pivot and compensation center which lies centrally in the one plane of the working surfaces, said flexible suspension comprising a spherical shell adapted to be connected to a soldering machine, and a spherical section received in said spherical shell and connected to the soldering stirrup holder.
Claim 6
Dependent Claim
114 words
In a soldering device of the type in which at least one soldering stirrup electrode adapted to be heated by electrical resistance heating is carried by a soldering stirrup holder and comprises a plurality of soldering webs lying opposite one another in pairs and include working surfaces which lie in one plane, the improvement therein comprising: a flexible suspension mounting the soldering stirrup holder for movement about a pivot and compensation center which lies centrally in the one plane of the working surfaces, said flexible suspension comprising a spherical shell adapted to be connected to a soldering machine, and a spherical section received in said spherical shell and connected to the soldering stirrup holder.
Claim 7
Dependent Claim
23 words
The improved soldering device of claim 4, wherein: said spherical shell and said spherical section comprise means for providing a mutual, magnetic attraction.
References Cited (Backward Citations)
US3448911A
Cited
US3957185A
Cited
US4025750A
Cited
DE2818958A1
Cited
EP0011046A1
Cited
DE3149236A1
Cited
US4573627A
Cited
US4768702A
Cited
US4894506A
Cited
US4851648A
Cited
US4875614A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |