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US3266730A
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Torque transmission units for pop-up sprinklers
Assignee: Telsco Ind
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Filing: 1964-01-20
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Granted: 1966-08-16
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Expires: 1984-01-20
Abstract
No abstract record available.
Inventors
- 👤 Leo A Martini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:39
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0417; B05B15/00; B05B15/70; B05B15/72; B05B15/74; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1526; Y10T74/1553; Y10T74/1555
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN COMBINATION WITH A LAWN SPRINKLER HAVING A CHAMBER, A WATER INLET COMMUNICATING WITH THE CHAMBER AND A ROTATING NOZZLE COMMUNICATING WITH THE CHAMBER, A TORQUE TRANSMISSION UNIT FOR IMPARTING INTERMITTENT ROTATION TO THE NOZZLE INCLUDING A STATOR-ROTOR TYPE TURBINE MOUNTED IN THE CHAMBER BETWEEN THE NOZZLE AND INLET, A ROTATABLE CAM DRIVEN BY THE TURBINE, A DRIVE SHAFT IN THE CHAMBER, ARM MEANS PIVOTALLY MOUNTED IN THE CHAMBER, MEANS FOR BIASING SAID ARM MEANS INTO ENGAGEMENT WITH THE CAM FOR OSCILLATION UPON ROTATION OF SAID CAM, UNIDIRECTIONAL CLUTCH MEANS CONNECTING THE DRIVE SHAFT AND ARM MEANS FOR IMPARTING INTERMITTENT ROTATION TO SAID SHAFT UPON OSCILLATION OF SAID ARM MEANS, AND MEANS FOR TRANSMITTING THE INTERMITTENT ROTATION OF SAID DRIVE SHAFT TO THE NOZZLE, SAID ARM MEANS BEING OSCILLATED ONE TIME UPON EACH REVOLUTION OF SAID CAM WHEREBY THE UNIT HAS A HIGH TO LOW ROTATIONAL SPEED REDUCTION AND A LOW TO HIGH TORQUE TRANSMISSION.
Claim 2
Dependent Claim
155 words
IN COMBINATION WITH A LAWN SPRINKLER HAVING A CHAMBER, A WATER INLET COMMUNICATING WITH THE CHAMBER AND A ROTATING NOZZLE COMMUNICATING WITH THE CHAMBER, A TORQUE TRANSMISSION UNIT FOR IMPARTING INTERMITTENT ROTATION TO THE NOZZLE INCLUDING A STATOR-ROTOR TYPE TURBINE MOUNTED IN THE CHAMBER BETWEEN THE NOZZLE AND INLET, A ROTATABLE CAM DRIVEN BY THE TURBINE, A DRIVE SHAFT IN THE CHAMBER, ARM MEANS PIVOTALLY MOUNTED IN THE CHAMBER, MEANS FOR BIASING SAID ARM MEANS INTO ENGAGEMENT WITH THE CAM FOR OSCILLATION UPON ROTATION OF SAID CAM, UNIDIRECTIONAL CLUTCH MEANS CONNECTING THE DRIVE SHAFT AND ARM MEANS FOR IMPARTING INTERMITTENT ROTATION TO SAID SHAFT UPON OSCILLATION OF SAID ARM MEANS, AND MEANS FOR TRANSMITTING THE INTERMITTENT ROTATION OF SAID DRIVE SHAFT TO THE NOZZLE, SAID ARM MEANS BEING OSCILLATED ONE TIME UPON EACH REVOLUTION OF SAID CAM WHEREBY THE UNIT HAS A HIGH TO LOW ROTATIONAL SPEED REDUCTION AND A LOW TO HIGH TORQUE TRANSMISSION.
References Cited (Backward Citations)
USRE23646E
Cited
GB289843A
Cited
US2575012A
Cited
US2979271A
Cited
US2885896A
Cited
US3038666A
Cited
US3099164A
Cited
US3088677A
Cited
US3144779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |