US3889364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making soldered electrical connections
Assignee: Siemens AG
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Filing: 1973-06-04
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Granted: 1975-06-17
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Expires: 1993-06-04
Abstract
Abstract An electrical conductor of relatively small cross section is provided with a loop at one end adapted to be dipped into a bath of molten solder, whereby a predetermined amount of solder adheres to the loop as a membrane, formed by capillary action. The conductor is thus provided with a known quantity of solder, so that the conductor may be soldered to a conductive element by application of a known quantity of heat, without requiring any additional solder to be supplied at the time of soldering. The solder membranes are formed continuously by an automatic process, and the conductors are soldered into fixed relation with conductive elements automatically by the application of heat and pressure from a soldering element.
Inventors
- 👤 Ekkehard Krueger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:13
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/08; B23K1/085; H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/341; H05K3/3421; H05K3/3426; H01; H01R; H01R43/00; H01R43/16; H05K2201/00; H05K2201/10; H05K2201/10613; H05K2201/10742; H05K2201/10886; H05K2201/10946; H05K2201/10954; H05K2201/10984; Y; Y02; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
80 words
A method of metering solder for use in a soldered connection between an electrical conductor and a conductive element, comprising the steps of: forming a loop of capillary size in said conductor, exposing said loop to a bath of molten solder, withdrawing said loop from said bath and permitting the solder acquired by said loop to solidify, whereby a predetermined amount of solder is acquired by said loop by capillary action, said solder solidifying into a membrane closing said loop.
Claim 2
Independent Claim
80 words
A method of metering solder for use in a soldered connection between an electrical conductor and a conductive element, comprising the steps of: forming a loop of capillary size in said conductor, exposing said loop to a bath of molten solder, withdrawing said loop from said bath and permitting the solder acquired by said loop to solidify, whereby a predetermined amount of solder is acquired by said loop by capillary action, said solder solidifying into a membrane closing said loop.
Claim 3
Dependent Claim
27 words
The method according to claim 1, including the step of forming said loop with a diameter corresponding to the amount of solder desired for making said connection.
Claim 4
Dependent Claim
27 words
The method according to claim 1, including the step of providing a coating of soldering flux on said loop before exposing said loop to said solder bath.
Claim 5
Dependent Claim
27 words
The method according to claim 1, including the step of providing a coating of soldering flux on said loop after exposing said loop to said solder bath.
Claim 6
Dependent Claim
14 words
The method according to claim 1, wherein said conductor 1 is a closed loop.
Claim 7
Dependent Claim
21 words
The method according to claim 1, wherein said conductor is a wire and said loop is formed by bending said wire.
Claim 8
Dependent Claim
25 words
The method according to claim 1, wherein said conductor is a piece of sheet material, and said loop is formed by deforming said sheet mAterial.
Claim 9
Dependent Claim
18 words
The method according to claim 7, wherein said deforming step comprises forming an aperture in said sheet material.
Claim 10
Independent Claim
84 words
A method of making a soldered connection between an electrical conductor and a conductive element, comprising the steps of; forming a loop of capillary size in said conductor, exposing said loop to a bath of molten solder, whereby a predetermined amount of solder is acquired by said loop by capillary action and solidified into a membrane closing said loop, juxtaposing said loop with said conductive element, and applying heat to said membrane to melt said solder and allow said solder to form said connection.
Claim 11
Independent Claim
84 words
A method of making a soldered connection between an electrical conductor and a conductive element, comprising the steps of; forming a loop of capillary size in said conductor, exposing said loop to a bath of molten solder, whereby a predetermined amount of solder is acquired by said loop by capillary action and solidified into a membrane closing said loop, juxtaposing said loop with said conductive element, and applying heat to said membrane to melt said solder and allow said solder to form said connection.
Claim 12
Dependent Claim
63 words
The method according to claim 9, wherein said conductor is a wire and including the steps of; forming said loop by bending said wire in a loop, said membrane having a central portion projecting downwardly beyond the wire of which said loop is formed, and placing the lower surface of said membrane in contact with said conductive element prior to said heating step.
Claim 13
Dependent Claim
36 words
The method according to claim 9, including the steps of; temporarily supporting a plurality of said conductors in spaced-apart relation, and conveying said conductors while so supported toward a plurality of conductive elements for soldering thereto.
Claim 14
Dependent Claim
32 words
The method according to claim 11, including the step of moving each of said conductive elements away from said plurality of conductors after it has been soldered to one of said conductors.
Claim 15
Dependent Claim
62 words
The method according to claim 12, wherein said conductors are elongate bodies, and said supporting step comprises supporting said bodies in spaced locations along the length of a band, said bodies being restrained from movement relative to said band except in their longitudinal direction, and including the step of withdrawing said bodies from said band as said conductive elements are moved away.
Claim 16
Dependent Claim
58 words
The method according to claim 9, including the steps of; pressing said loop against said conductive element with a predetermined force by a heating element, heating said heating element by passing an electrical current therethrough to produce a predetermined quantity of heat for melting said solder, and removing said heating element from said loop after said heating step.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-16 | 1978-12-16 | 1979-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-16 | 1982-12-16 | 1983-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-16 | 1986-12-16 | 1987-06-17 | $7700.00 | Window Closed / Lapsed |