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US3279174A Expired / Lapsed US ⏱️ 0.0 years remaining

Cylindrical water turbine

Assignee: Hitachi Ltd
•
Filing: 1964-03-11
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Granted: 1966-10-18
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Expires: 1984-03-11
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Abstract

No abstract record available.

Inventors

  • 👤 Yokoi Nobuyasu

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-06 11:58
CPC Classifications
F; F03; F03B; F03B13/00; F03B13/10; F03B13/105; F05; F05B; F05B2250/00; F05B2250/20; F05B2250/23; F05B2250/231; Y; Y02; Y02E; Y02E10/00; Y02E10/20

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 161 words
A WATER TURBINE GENERATOR PLANT COMPRISING A HORIZONTAL GENERATOR, A GENERALLY CYLINDRICAL CASING FOR HOUSING THE GENERATOR, A RUNNER ASSOCIATED WITH THE GENERATOR AND ROTATABLY MOUNTED AT THE END OF THE CASING, AN OUTER CASING SURROUNDING THE FIRST NAMED CASING AND DEFINING THEREWITH A SPACE AROUND THE FIRST NAMED CASING, SAID SPACE FORMING A WATER PASSAGE TO CONDUCT WATER TO THE RUNNER PARALLELLY WITH THE AXIS OF THE RUNNER AND THE FIRST NAMED CASING AND DEFINING A FURTHER SPACE THEREBETWEEN WHICH ACTERIZED IN THAT THE SUPPORTER IS IN THE FORM OF TWO SUBSTANTIALLY IDENTICAL PARALLEL SUPPORTING LEGS OF VARYING NARROW WIDTH ARRANGED UNDERNEATH THE FIRST NAMED CASING AND DEFINING A FURTHER SPACE THEREBETWEEN WHICH CONSTITUTES A FURTHER WATER PASSAGE LENGTHWISE OF THE AXIS OF THE FIRST NAMED CASING, THE MINIMUM WIDTH OF SAID SPACE AND THE MAXIMUM WIDTH OF EACH OF SAID LEGS BEING APPROXIMATELY EQUAL, THUS COMPRISING MEANS FACILITATING A UNIFORM FLOW OF WATER THROUGH SAID SPACES AGAINST SAID RUNNER.
Claim 2
Dependent Claim 161 words
A WATER TURBINE GENERATOR PLANT COMPRISING A HORIZONTAL GENERATOR, A GENERALLY CYLINDRICAL CASING FOR HOUSING THE GENERATOR, A RUNNER ASSOCIATED WITH THE GENERATOR AND ROTATABLY MOUNTED AT THE END OF THE CASING, AN OUTER CASING SURROUNDING THE FIRST NAMED CASING AND DEFINING THEREWITH A SPACE AROUND THE FIRST NAMED CASING, SAID SPACE FORMING A WATER PASSAGE TO CONDUCT WATER TO THE RUNNER PARALLELLY WITH THE AXIS OF THE RUNNER AND THE FIRST NAMED CASING AND DEFINING A FURTHER SPACE THEREBETWEEN WHICH ACTERIZED IN THAT THE SUPPORTER IS IN THE FORM OF TWO SUBSTANTIALLY IDENTICAL PARALLEL SUPPORTING LEGS OF VARYING NARROW WIDTH ARRANGED UNDERNEATH THE FIRST NAMED CASING AND DEFINING A FURTHER SPACE THEREBETWEEN WHICH CONSTITUTES A FURTHER WATER PASSAGE LENGTHWISE OF THE AXIS OF THE FIRST NAMED CASING, THE MINIMUM WIDTH OF SAID SPACE AND THE MAXIMUM WIDTH OF EACH OF SAID LEGS BEING APPROXIMATELY EQUAL, THUS COMPRISING MEANS FACILITATING A UNIFORM FLOW OF WATER THROUGH SAID SPACES AGAINST SAID RUNNER.

References Cited (Backward Citations)

US990190A Cited
US1494008A Cited
US2603945A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-10-17 1970-04-18 1970-10-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-10-17 1974-04-18 1974-10-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-10-17 1978-04-18 1978-10-18 $7700.00 Window Closed / Lapsed

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