Patent US2351008A successfully refreshed from Google Patents.
US3134085A
Expired / Lapsed
US
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Variable resistor with terminal structure
Assignee: Beckman Coulter Inc
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Filing: 1962-08-17
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Granted: 1964-05-19
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Expires: 1982-08-17
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Miller
- 👤 Karl F Szobonya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:03
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/30; H01C10/38; H01C10/40; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49169
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A VARIABLE RESISTOR COMPRISING: A SUPPORT MEANS; A RESISTANCE ELEMENT MOUNTED TO THE UPPER SURFACE OF SAID SUPPORT MEANS; MEANS FOR MOVABLY CONTACTING SAID RESISTANCE ELEMENTS, SAID MEANS INCLUDING AN ADJUSTMENT SHAFT ROTATABLY MOUNTED UPON SAID SUPPORT MEANS; SAID SUPPORT MEANS HAVING FIRST AND SECOND HOLES PROXIMATE THE RESPECTIVE ENDS OF SAID RESISTANCE ELEMENT; AND A TERMINAL FORMED OF A MALLEABLE CONDUCTOR MATERIAL INSERTED IN EACH OF SAID HOLES, SAID TERMINAL HAVING A CYLINDRICAL END SLIGHTLY SMALLER THAN THE DIAMETER OF SAID HOLE AND ANOTHER PORTION PROVIDED WITH A PLURALITY OF SERRATIONS WHICH ARE DEFORMED UPON INSERTION OF THE PIN WITHIN SAID OPENING, THE DIAMETER OF SAID SERRATIONS BEING SUCH THAT THE PIN IS RIGIDLY RETAINED WITHIN SAID HOLE WITHOUT FRACTURING THE SUPPORT BASE.
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) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |