Patent US3711020A successfully refreshed from Google Patents.
US3711020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency solder paste gun
Assignee: Individual
•
Filing: 1970-07-06
•
Granted: 1973-01-16
•
Expires: 1990-07-06
Abstract
Abstract An applicator gun for solder paste having a tapered discharge nozzle at the end of the tubular body and having a valve rod mounted to reciprocate in said body so that the tip of the rod engages the internal valve surface of the nozzle. The gun employs a unique combination of a soft elastic rubber nozzle, a soft elastic rubber valve tip, and a special rolling-type rubber diaphragm to minimize secondary displacement of the solder paste. The gun can operate effectively for long periods of time when continually discharging tiny beads of such paste or when operated at extremely high frequency.
Inventors
- 👤 R Zelna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:02
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/06; Y; Y10; Y10S; Y10S239/00; Y10S239/12; Y10S239/19
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2969926A
Cited
US3022955A
Cited
US3098635A
Cited
US3069099A
Cited
US3107705A
Cited
US3306570A
Cited
US3224677A
Cited
US3341124A
Cited
US3424429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |