US3752383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering apparatus
Assignee: Technical Devices Co
•
Filing: 1971-11-11
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Granted: 1973-08-14
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Expires: 1991-11-11
Abstract
Abstract Homogenization of petroleum oil in molten solder is produced in stages in an agitation chamber formed about the outlet of a solder pump of a standing wave soldering machine. In the first stage, a high pressure stream of oil is directed at the pressure faces of the pump propeller blades to produce intermittent counteracting forces creating turbulence which reduces the oil to small particles and distributing them in the oppositely moving stream of molten solder. In the second stage, droplets or globules of oil remaining in the stream of oil and molten solder separate rising to the top of the agitation chamber to be drawn through an impeller agitator which completes the reduction of the oil globules to finely divided particles which are distributed uniformly throughout the surrounding molten solder by shearing action of the agitator. The homogenized mixture of oil and molten solder flows into a pressure tank of the soldering machine to produce a standing wave of solder at a duct orifice.
Inventors
- 👤 M Allen
- 👤 H Eschenbrucher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:30
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0646; B23K3/0653; B23K2101/00; B23K2101/36; B23K2101/42
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
133 words
In combination with solder application apparatus, an oil homogenization arrangement comprising: a solder pump having an outlet for producing a moving stream of molten solder; an agitation chamber formed about the pump outlet; means for producing a stream of oil in said chamber in a direction having at least a component counter to the direction of the stream of solder so that counterforces are produced in the chamber for turbulent intermixing and homogenization of the oil and solder; and wherein said pump includes a propeller having blades and said oil stream is directed at the pressure faces of the blades so that the stream of oil is interrupted by the blades to reduce the oil to small particles and disburse the oil particles uniformly throughout the molten solder emanating from the pump outlet.
Claim 2
Dependent Claim
133 words
In combination with solder application apparatus, an oil homogenization arrangement comprising: a solder pump having an outlet for producing a moving stream of molten solder; an agitation chamber formed about the pump outlet; means for producing a stream of oil in said chamber in a direction having at least a component counter to the direction of the stream of solder so that counterforces are produced in the chamber for turbulent intermixing and homogenization of the oil and solder; and wherein said pump includes a propeller having blades and said oil stream is directed at the pressure faces of the blades so that the stream of oil is interrupted by the blades to reduce the oil to small particles and disburse the oil particles uniformly throughout the molten solder emanating from the pump outlet.
Claim 3
Dependent Claim
48 words
The combination of claim 1 in which an impeller is disposed in the opposite end of the chamber from the pump outlet so that oil globules remaining in the intermixture formed in the chamber are reduced to small particles and disbursed uniformly in a second stage of homogenization.
Claim 4
Dependent Claim
59 words
The combination of claim 2 in which said impeller has blades about the periphery thereof and said chamber includes an irregular, annular inner surface about the periphery of the impeller so that oil globules driven radislly by the impeller are reduced to small particles by shearing between tips of the blades of the impeller and the irregular, annular surface.
Claim 5
Dependent Claim
97 words
In combination with solder application apparatus, an oil homogenization arrangement comprising: a solder pump having an outlet, said pump including a rotatably driven member having pump blades including pressure faces producing a moving main stream of molten solder emanating from said outlet during rotation thereof; means for producing a stream of oil directed under pressure at the pressure faces of said pump blades so that the directed oil stream is interrupted by the blades to reduce the oil stream to small particles and disburse the oil particles uniformly throughout the molten solder emanating from the pump outlet.
Claim 6
Dependent Claim
97 words
In combination with solder application apparatus, an oil homogenization arrangement comprising: a solder pump having an outlet, said pump including a rotatably driven member having pump blades including pressure faces producing a moving main stream of molten solder emanating from said outlet during rotation thereof; means for producing a stream of oil directed under pressure at the pressure faces of said pump blades so that the directed oil stream is interrupted by the blades to reduce the oil stream to small particles and disburse the oil particles uniformly throughout the molten solder emanating from the pump outlet.
References Cited (Backward Citations)
US3058441A
Cited
US3216642A
Cited
US3198414A
Cited
US3398873A
Cited
US3565319A
Cited
US3452916A
Cited
US3589590A
Cited
US3612388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |