US3222942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for detaching mercury drops from a capillary tube
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1961-01-09
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Granted: 1965-12-14
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Expires: 1981-01-09
Abstract
No abstract record available.
Inventors
- 👤 Davis Herbert Macdonald
- 👤 Lockwood William Hartshorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:23
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/34; G01N27/416; G01N27/48; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18888; Y10T74/1892; Y10T74/20; Y10T74/20576; Y10T74/20582; Y10T74/2063
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A DEVICE FOR DETACHING MERCURY DROPS FROM A CAPILLARY TUBE COMPRISING A MOVEABLE ARM INCLUDING A MOUNTING FOR HOLDING A CAPILLARY TUBE, AN ELECTROMAGNET HAVING ARMATURE MOVEABLE BETWEEN AN UNENERGIZED AND AN ENERGIZED POSITION, A LOST-MOTION COUPLING COUPLING SAID ARMATURE TO SAID ARM, THE COUPLING SERVING TO DELAY MOVEMENT OF THE ARM UNTIL AFTER THE ARMATURE HAS MOVED A PREDETERMINED AMOUNT, FIRST LOADING MEANS ACTING ON SAID ARMATURE TO RETURN IT TO THE UNENERGIZED POSITION, TWO SUBSTANTIALLY NON-RESILIENT STOPS DEFINING THE LIMITS OF THE MOVEMENT OF SAID ARM, AND SECOND LOADING MEANS ACTING ON SAID ARM TO RESTORE SAID ARM TO ONE OF SAID LIMITS AFTER BEING MOVED THEREFROM TO THE OTHER OF SAID LIMITS BY THE ENERGIZATION OF SAID ELECTROMAGNET.
Claim 2
Independent Claim
121 words
A DEVICE FOR DETACHING MERCURY DROPS FROM A CAPILLARY TUBE COMPRISING A MOVEABLE ARM INCLUDING A MOUNTING FOR HOLDING A CAPILLARY TUBE, AN ELECTROMAGNET HAVING ARMATURE MOVEABLE BETWEEN AN UNENERGIZED AND AN ENERGIZED POSITION, A LOST-MOTION COUPLING COUPLING SAID ARMATURE TO SAID ARM, THE COUPLING SERVING TO DELAY MOVEMENT OF THE ARM UNTIL AFTER THE ARMATURE HAS MOVED A PREDETERMINED AMOUNT, FIRST LOADING MEANS ACTING ON SAID ARMATURE TO RETURN IT TO THE UNENERGIZED POSITION, TWO SUBSTANTIALLY NON-RESILIENT STOPS DEFINING THE LIMITS OF THE MOVEMENT OF SAID ARM, AND SECOND LOADING MEANS ACTING ON SAID ARM TO RESTORE SAID ARM TO ONE OF SAID LIMITS AFTER BEING MOVED THEREFROM TO THE OTHER OF SAID LIMITS BY THE ENERGIZATION OF SAID ELECTROMAGNET.
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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |