Patent US3313487A successfully refreshed from Google Patents.
US3313487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cloud seeding apparatus
Assignee: Individual
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Filing: 1965-04-16
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Granted: 1967-04-11
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Expires: 1985-04-16
Abstract
No abstract record available.
Inventors
- 👤 David D Merrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:01
CPC Classifications
A; A01; A01G; A01G15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
221 words
APPARATUS FOR PRODUCING NUCLEATING AGENTS FOR NUCLEATING CLOUDS COMPRISING: A HOUSING; A PAIR OF ELECTRODES; MEANS FOR ESTABLISHING AND MAINTAINING A HIGH TEMPERATURE ARC BETWEEN SAID ELECTRODES WITHIN SAID HOUSING, INCLUDING MEANS FOR SUPPORTING EACH OF SAID ELECTRODES WITH AN END OF SAID ELECTRODE SPACED FROM THE END OF SAID OTHER ELECTRODE FOR ESTABLISHING AN ARC THEREBETWEEN AND DRIVING AT LEAST ONE OF SAID ELECTRODES TOWARD SAID OTHER ELECTRODE; MEANS FOR FEEDING A SUBSTANCE INTO SAID ARC; MEANS FOR CONVEYING NUCLEATING AGENTS PRODUCED IN SAID ARC OUT OF SAID HOUSING TO THE REGION TO BE NUCLEATED; SAID SUPPORT AND DRIVING MEANS INCLUDING A PAIR OF ELECTRODE HOLDING MEMBERS, A PAIR OF ARM MEMBERS ASSOCIATED WITH EACH OF SAID HOLDING MEMBERS, SUPPORT MEANS ASSOCIATED WITH EACH PAIR OF ARM MEMBERS, EACH PAIR OF ARM MEMBERS BEING SECURED TOGETHER AT THEIR ONE END IN A SPRING BIASED MANNER WITH THE OTHER END OF ONE OF SAID ARM MEMBERS SECURED TO SAID SUPPORT MEANS AND THE OTHER END OF THE OTHER OF SAID ARM MEMBERS SECURED TO ONE OF SAID ELECTRODE HOLDING MEMBERS; CIRCUIT MEANS FOR GENERATING AN ARC BETWEEN SAID ELECTRODE MEMBERS, AND ELECTRICAL MEANS ASSOCIATED WITH SAID CIRCUIT MEANS FOR CONTROLLING THE MOVEMENT OF SAID ONE OF SAID ELECTRODES FOR INITIATION AND MAINTENANCE OF THE ARC BETWEEN THE ENDS OF SAID ELECTRODES.
Claim 2
Dependent Claim
221 words
APPARATUS FOR PRODUCING NUCLEATING AGENTS FOR NUCLEATING CLOUDS COMPRISING: A HOUSING; A PAIR OF ELECTRODES; MEANS FOR ESTABLISHING AND MAINTAINING A HIGH TEMPERATURE ARC BETWEEN SAID ELECTRODES WITHIN SAID HOUSING, INCLUDING MEANS FOR SUPPORTING EACH OF SAID ELECTRODES WITH AN END OF SAID ELECTRODE SPACED FROM THE END OF SAID OTHER ELECTRODE FOR ESTABLISHING AN ARC THEREBETWEEN AND DRIVING AT LEAST ONE OF SAID ELECTRODES TOWARD SAID OTHER ELECTRODE; MEANS FOR FEEDING A SUBSTANCE INTO SAID ARC; MEANS FOR CONVEYING NUCLEATING AGENTS PRODUCED IN SAID ARC OUT OF SAID HOUSING TO THE REGION TO BE NUCLEATED; SAID SUPPORT AND DRIVING MEANS INCLUDING A PAIR OF ELECTRODE HOLDING MEMBERS, A PAIR OF ARM MEMBERS ASSOCIATED WITH EACH OF SAID HOLDING MEMBERS, SUPPORT MEANS ASSOCIATED WITH EACH PAIR OF ARM MEMBERS, EACH PAIR OF ARM MEMBERS BEING SECURED TOGETHER AT THEIR ONE END IN A SPRING BIASED MANNER WITH THE OTHER END OF ONE OF SAID ARM MEMBERS SECURED TO SAID SUPPORT MEANS AND THE OTHER END OF THE OTHER OF SAID ARM MEMBERS SECURED TO ONE OF SAID ELECTRODE HOLDING MEMBERS; CIRCUIT MEANS FOR GENERATING AN ARC BETWEEN SAID ELECTRODE MEMBERS, AND ELECTRICAL MEANS ASSOCIATED WITH SAID CIRCUIT MEANS FOR CONTROLLING THE MOVEMENT OF SAID ONE OF SAID ELECTRODES FOR INITIATION AND MAINTENANCE OF THE ARC BETWEEN THE ENDS OF SAID ELECTRODES.
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |