US3575336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soldering device
Assignee: National Aeronautics and Space Administration
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Filing: 1968-11-21
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Granted: 1971-04-20
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Expires: 1988-11-21
Abstract
Abstract A soldering tool and method which utilizes controlled capillary attraction of the solder and the tool to regulate solder flow into and out of the tool tip and on and off the workpieces.
Inventors
- 👤 Franklin W Booth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:30
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0607; B23K3/0615
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A soldering tool comprising: a tip member; a passage formed in said tip having walls which are solder wettable and opening onto the surface of said tip member; heater means for heating said tip member to the melting point of solder; means for venting said passage to allow free movement of solder into said passage due to capillary forces; and control means for selectively counteracting said capillary forces and causing solder deposited in said passage to protrude above the surface of said tip member, whereby contact of contained solder with members to be connected may be facilitated.
Claim 2
Dependent Claim
97 words
A soldering tool comprising: a tip member; a passage formed in said tip having walls which are solder wettable and opening onto the surface of said tip member; heater means for heating said tip member to the melting point of solder; means for venting said passage to allow free movement of solder into said passage due to capillary forces; and control means for selectively counteracting said capillary forces and causing solder deposited in said passage to protrude above the surface of said tip member, whereby contact of contained solder with members to be connected may be facilitated.
Claim 3
Dependent Claim
18 words
The tool of claim 1 wherein said control means includes a control member slidably inserted in said passage.
Claim 4
Dependent Claim
37 words
The toOl of claim 2 wherein said vent means includes means providing considerable clearance between said control member and said passage, and also including another opening to the surface of said tip in communication with said passage.
References Cited (Backward Citations)
US1457508A
Cited
US1626552A
Cited
GB533005A
Cited
US2462131A
Cited
US2491165A
Cited
US3484033A
Cited
US3443734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |