US3726465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave soldering apparatus
Assignee: HOLLIS AUTOMATION Co A Corp OF
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Filing: 1971-01-15
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Granted: 1973-04-10
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Expires: 1991-01-15
Abstract
Abstract An apparatus for producing a soldering wave having a gradually curved upper soldering surface and including a passage communicating with a reservoir of the solder through a lower intake and having a discharge opening above the level of the solder in the reservoir, a wall forming part of the passage and discharge opening over which the solder flows to form the wave, a down-wardly extending return passage having its upper intake in communication with the downstream end of the wave and its lower discharge end beneath the level of the solder in the reservoir, a downwardly sloped wall for supporting the wave between the overflow wall and the upper end of the return passage and lengthening the wave between the upstream and downstream ends thereof, and a flow regulator within the return passage to maintain a column of solder within the return passage at a height substantially above the level of the solder in the reservoir to eliminate turbulence within the wave and the return passage.
Inventors
- 👤 K Boynton
- 👤 T Diggins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:03
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0646; B23K3/0653; B23K2101/00; B23K2101/36; B23K2101/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
201 words
An apparatus for producing a soldering wave having a gradually curved upper soldering surface of relatively long length in the direction of flow comprising means forming a passage in communication with a reservoir of solder through a lower intake and having a discharge opening at the top above the level of the solder in the reservoir, a relatively low wall forming part of the passage and discharge opening and over which the solder flows to form the wave, a relatively high wall opposite the overflow wall, the said overflow wall diverging from the higher wall to enlarge the disCharge opening defined therebetween in the direction of the flow of the wave, means defining a downwardly extending return passage having its upper intake end in communication with the downstream end of the wave substantially downstream of the useful part of the wave and its lower discharge end beneath the level of the solder in the reservoir; and a downwardly sloped wall for supporting the wave between the overflow wall and the upper end of the return passage and for lengthening the wave between the upstream and downstream ends of the wave and decreasing the curvature of the upper surface of the wave.
Claim 2
Independent Claim
201 words
An apparatus for producing a soldering wave having a gradually curved upper soldering surface of relatively long length in the direction of flow comprising means forming a passage in communication with a reservoir of solder through a lower intake and having a discharge opening at the top above the level of the solder in the reservoir, a relatively low wall forming part of the passage and discharge opening and over which the solder flows to form the wave, a relatively high wall opposite the overflow wall, the said overflow wall diverging from the higher wall to enlarge the disCharge opening defined therebetween in the direction of the flow of the wave, means defining a downwardly extending return passage having its upper intake end in communication with the downstream end of the wave substantially downstream of the useful part of the wave and its lower discharge end beneath the level of the solder in the reservoir; and a downwardly sloped wall for supporting the wave between the overflow wall and the upper end of the return passage and for lengthening the wave between the upstream and downstream ends of the wave and decreasing the curvature of the upper surface of the wave.
Claim 3
Dependent Claim
50 words
An apparatus as set forth in claim 1 including a flow regulating means within the return passage to maintain a column of solder within the return passage at a height substantially above the level of the solder in the reservoir to eliminate turbulence within the wave and the return passage.
Claim 4
Dependent Claim
54 words
An apparatus as set forth in claim 1 including an upstanding wall spaced apart from the lower end of the downwardly sloped wall and forming a wall of the return passage, the upper end of said upstanding wall and the lower end of said downwardly sloped wall defining a portion of the return passage.
Claim 5
Dependent Claim
35 words
An apparatus as set forth in claim 1 including means defining a reservoir of solder beneath the downwardly sloped wall in communication with the return passage between the upper intake and lower discharge ends thereof.
Claim 6
Dependent Claim
61 words
An apparatus as set forth in claim 4 including means defining a restricted lower discharge from the return passage below said reservoir and in which the flow regulating means is a horizontally adjustable bar in communication with the reservoir and adjustable vertically toward and away from the restricted discharge passage to regulate the column of solder maintained within the return passage.
Claim 7
Dependent Claim
51 words
An apparatus as set forth in claim 1 including a tubular housing at the lower region of the apparatus enclosing an intake chamber and having an intake opening at one end and an elongated, restricted, transversely extending passage connecting the intake chamber with the lower end of the upwardly extending passage.
Claim 8
Dependent Claim
76 words
An apparatus as set forth in claim 6 in which the means defining the return passage includes an upstanding wall and a pair of end walls for separating the return passage from the solder within the reservoir, the upstanding wall being spaced apart at its upper end from the lower end of the downwardly sloped wall and spaced apart at its lower end from the front of the tubular housing to form the return flow passage.
Claim 9
Dependent Claim
58 words
An apparatus as set forth in claim 6 including a reservoir of solder in communication with said return passage intermediate the upper and lower ends thereof and defined by the upper surface of the tubular housing and the lower surfaces of the overflow wall and the wall which slopes downwardly from the upper end of said overflow wall.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |