US3581388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of assembling a potentiometer
Assignee: Dale Electronics Inc
•
Filing: 1968-02-05
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Granted: 1971-06-01
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Expires: 1988-02-05
Abstract
Abstract THE METHOD OF ASSEMBLING A POTENTIOMETER HAVING A RESISTANCE COIL, A COLLECTOR MEMBER AND A WIPER ASSEMBLY BY PROVIDING A HOUSING HAVING AN OPENING IN ONE SIDE, PLACING A CLOSURE HAVING A TAPERED RIB ADJACENT ITS PERIPHERAL EDGE WITHIN SAID OPENING, APPLYING PRESSURE AND ULTRASONIC VIBRATIONS TO THE CLOSURE AND THE HOUSING TO CONCENTRATE HEAT ENERGY AT THE RIB TO MELT THE RIB, AND COOLING OF THE RESULTING UNIT TO EFFECT THE SEAL OF THE CLOSURE TO THE HOUSING UNIT.
Inventors
- 👤 Robert F Klung
- 👤 Larry B Lindquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:46
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40; H01C10/42; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49826; Y10T29/49833
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |