US3963897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated solder removing bit
Assignee: Stanley Electric Co Ltd
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Filing: 1974-05-09
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Granted: 1976-06-15
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Expires: 1994-05-09
Abstract
Abstract A solder removing bit for use in melting solder by heat of the bit and for removing the solder by suction includes an elongated suction pipe having a suction bore extending therethrough with the pipe having an open end serving as an inlet to the bore. A tubular metallic bit surrounds the open end portion of the pipe and a tubular electric heater surrounds the bit. The end of the heater is spaced from the end of the bit to define a work contacting end portion on the bit. The end portion of the bit is provided with a coating of fused silica or porcelain enamel to render the end portion of the bit electrically insulative.
Inventors
- 👤 Katumasa Wakita
- 👤 Issei Yunoki
- 👤 Mitunari Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:59
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/018
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
119 words
A solder removing bit for use in melting solder by the heat of the bit and for removing the melted solder, comprising: an elongated hollow suction pipe having a suction bore extending through its length; said suction pipe having an open end serving as an inlet to said bore, and a portion of said pipe defining an end portion extending toward said open end; a metallic bit substantially completely surrounding said pipe end portion; a heater connected in heat exchange relation with said bit and spaced from said open end to define an end portion on said bit; said end portion of said bit being coated with an electrically insulative material completely from said open end to said heater.
Claim 2
Dependent Claim
119 words
A solder removing bit for use in melting solder by the heat of the bit and for removing the melted solder, comprising: an elongated hollow suction pipe having a suction bore extending through its length; said suction pipe having an open end serving as an inlet to said bore, and a portion of said pipe defining an end portion extending toward said open end; a metallic bit substantially completely surrounding said pipe end portion; a heater connected in heat exchange relation with said bit and spaced from said open end to define an end portion on said bit; said end portion of said bit being coated with an electrically insulative material completely from said open end to said heater.
Claim 3
Dependent Claim
21 words
The solder removing bit of claim 1, wherein said heater sealingly completely surrounds said bit except for said coated end portion.
Claim 4
Dependent Claim
23 words
The solder removing bit of claim 1, wherein said insulative material is selected from the group consisting of fused alumina and porcelain enamel.
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) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |