Patent US3593677A successfully refreshed from Google Patents.
US3593677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering apparatus and method
Assignee: Teledyne Brown Engineering Inc
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Filing: 1967-11-09
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Granted: 1971-07-20
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Expires: 1987-11-09
Abstract
Abstract Apparatus for applying solder to solderable substrates such as circuit boards includes a brushlike applicator. Molten solder is supplied to the brush and flows onto an article which is to be soldered. A bath of molten solder may be provided adjacent the end of the applicator so that both sides of a substrate may be soldered simultaneously.
Inventors
- 👤 John H Mclain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:25
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3465; H05K3/3468; B; B23; B23K; B23K3/00; B23K3/06; B23K3/0646; B23K3/0653; B23K3/0692; B23K2101/00; B23K2101/36; B23K2101/42; H05K2203/00; H05K2203/02; H05K2203/0257; H05K2203/15; H05K2203/1572; Y; Y10; Y10S; Y10S118/00; Y10S118/04
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
Apparatus for applying solder to a substrate comprising a brush having a base and a plurality of bristles which extend downwardly from the base and are capable of being wetted by a coating material which is at a given temperature, a heating device mounted on the base to maintain the bristles at said given temperature, means for supplying molten solder to the bristles, and means providing a bath of molten solder at least proximate to the lower end of the bristles; whereby a substrate moving along the bristles will have one surface coated by solder from the bath and another surface coated by solder from the bristles.
Claim 2
Dependent Claim
107 words
Apparatus for applying solder to a substrate comprising a brush having a base and a plurality of bristles which extend downwardly from the base and are capable of being wetted by a coating material which is at a given temperature, a heating device mounted on the base to maintain the bristles at said given temperature, means for supplying molten solder to the bristles, and means providing a bath of molten solder at least proximate to the lower end of the bristles; whereby a substrate moving along the bristles will have one surface coated by solder from the bath and another surface coated by solder from the bristles.
Claim 3
Dependent Claim
40 words
Apparatus according to claim 1 wherein the bristles are below the base and in which the means for supplying molten solder includes means for flowing a stream of molten solder downwardly from the base of the brush onto the bristles.
Claim 4
Dependent Claim
45 words
Apparatus according to claim 1 wherein the bath of coating material is in contact with the lower ends of the bristles; whereby coating material may flow from the bristles directly into the bath when a substrate is not located between the bath and the bristles.
Claim 5
Dependent Claim
82 words
Apparatus for applying solder to a substrate having upper and lower surfaces comprising an applicator located in a position to contact said upper surface of said substrate, means located below the applicator for providing a liquid bath of solder for contacting the lower surface of said substrate, the solid applicator having its portion which contacts the upper surface of the substrate movable upwardly from an initial position where it is at least proximate to and in vertical alignment with the liquid bath.
Claim 6
Dependent Claim
82 words
Apparatus for applying solder to a substrate having upper and lower surfaces comprising an applicator located in a position to contact said upper surface of said substrate, means located below the applicator for providing a liquid bath of solder for contacting the lower surface of said substrate, the solid applicator having its portion which contacts the upper surface of the substrate movable upwardly from an initial position where it is at least proximate to and in vertical alignment with the liquid bath.
Claim 7
Dependent Claim
22 words
Apparatus according to claim 4 in which the applicator is a brush which has a plurality of bristles which contact said substrate.
Claim 8
Dependent Claim
19 words
Apparatus according to claim 5 having a heating device located and arranged to heat the bristles of the brush.
Claim 9
Dependent Claim
16 words
Apparatus according to claim 4 having a heating device located and arranged to heat the applicator.
Claim 10
Dependent Claim
20 words
Apparatus according to claim 7 in which the solid applicator has its said portion in contact with the liquid bath.
Claim 11
Dependent Claim
102 words
Solder applying apparatus comprising means for generating a curtain of molten solder which flows downwardly under the influence of gravity through a soldering station where an article may be located, a flexible guide which is substantially coextensive with the curtain and is capable of being wetted by the solder located within the curtain and extending downwardly to the soldering station, said guide being located in the path of articles passing through said soldering station, and means for providing a bath of molten solder at the soldering station for applying solder to the lower surface of an article located at the soldering station.
Claim 12
Dependent Claim
102 words
Solder applying apparatus comprising means for generating a curtain of molten solder which flows downwardly under the influence of gravity through a soldering station where an article may be located, a flexible guide which is substantially coextensive with the curtain and is capable of being wetted by the solder located within the curtain and extending downwardly to the soldering station, said guide being located in the path of articles passing through said soldering station, and means for providing a bath of molten solder at the soldering station for applying solder to the lower surface of an article located at the soldering station.
Claim 13
Dependent Claim
15 words
Apparatus according to claim 9 in which the flexible guide comprises a plurality of bristles.
Claim 14
Dependent Claim
12 words
AppAratus according to claim 10 having means for heating the flexible guide.
Claim 15
Dependent Claim
12 words
Apparatus according to claim 9 having means for heating the flexible guide.
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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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |