Patent US3837576A successfully refreshed from Google Patents.
US3837576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water sprinkler device
Assignee: Lafayette Brass Manufacturing Co Inc
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Filing: 1973-08-24
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Granted: 1974-09-24
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Expires: 1993-08-24
Abstract
Abstract A water sprinkler device in which a spring-return impactor is driven by the water jet issuing from a rotary sprinkler head and executes oscillatory movement to apply impact forces to the sprinkler head which turn the sprinkler head changing the direction of the water jet. The intensity of the impact forces transmitted to the sprinkler head can be selectively varied for a given level of water jet impulse by operating an adjustment means provided on an impact receiving means.
Inventors
- 👤 J Rosenkranz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:59
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0455; B05B3/0461; Y; Y10; Y10S; Y10S239/00; Y10S239/01
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
181 words
In a water sprinkler device having an impactor supported for pivotal movement relative to a rotary sprinkler head and disposed for reaction with a water jet issuing from the sprinkler head, and resilient means biasing the impactor to rotate in a direction opposite to the reaction torque of the water jet whereby the impactor oscillates relative to the sprinkler head and applies impact forces thereto which turn the sprinkler head thereby change the direction of the water jet, the improvement which comprises in combination impact receiving means supported by the sprinkler head and disposed for striking engagement by said impactor to receive therefrom and transmit to the sprinkler head impact forces for turning the sprinkler head, said impact receiving means including adjustment means operable to selectively vary the intensity of the imapct forces transmitted to the sprinkler head for a given level of reaction impulse applied to the impactor by the water jet, said sprinkler head having an arm and said adjustment means including a stop member supported by said arm and adjustable in relation to the path of impactor movement.
Claim 2
Dependent Claim
181 words
In a water sprinkler device having an impactor supported for pivotal movement relative to a rotary sprinkler head and disposed for reaction with a water jet issuing from the sprinkler head, and resilient means biasing the impactor to rotate in a direction opposite to the reaction torque of the water jet whereby the impactor oscillates relative to the sprinkler head and applies impact forces thereto which turn the sprinkler head thereby change the direction of the water jet, the improvement which comprises in combination impact receiving means supported by the sprinkler head and disposed for striking engagement by said impactor to receive therefrom and transmit to the sprinkler head impact forces for turning the sprinkler head, said impact receiving means including adjustment means operable to selectively vary the intensity of the imapct forces transmitted to the sprinkler head for a given level of reaction impulse applied to the impactor by the water jet, said sprinkler head having an arm and said adjustment means including a stop member supported by said arm and adjustable in relation to the path of impactor movement.
Claim 3
Dependent Claim
189 words
In a water sprinkler device having an impactor supported for pivotal movement relative to a rotary sprinkler head and disposed for reaction with a water jet issuing from the sprinkler head, and resilient means biasing the impactor to rotate in a direction opposite to the reaction torque of the water jet whereby the impactor oscillates relative to the sprinkler head and applies impact forces thereto which turn the sprinkler head and thereby change the direction of the water jet, the improvement which comprises in combination impact receiving means supported by the sprinkler head and disposed for striking engagement by said impactor to receive therefrom and transmit to the sprinkler head impact forces for turning the sprinkler head, said impact receiving means including adjustment means operable to selectively vary the intensity of the impact forces transmitted to the sprinkler head for a given level of reaction impulse applied to the impactor by the water jet, said impact receiving means being supported for movement relative to the sprinkler head from an operating position located in the path of impactor movement to a non-operating position clear of the path of impactor movement.
Claim 4
Dependent Claim
189 words
In a water sprinkler device having an impactor supported for pivotal movement relative to a rotary sprinkler head and disposed for reaction with a water jet issuing from the sprinkler head, and resilient means biasing the impactor to rotate in a direction opposite to the reaction torque of the water jet whereby the impactor oscillates relative to the sprinkler head and applies impact forces thereto which turn the sprinkler head and thereby change the direction of the water jet, the improvement which comprises in combination impact receiving means supported by the sprinkler head and disposed for striking engagement by said impactor to receive therefrom and transmit to the sprinkler head impact forces for turning the sprinkler head, said impact receiving means including adjustment means operable to selectively vary the intensity of the impact forces transmitted to the sprinkler head for a given level of reaction impulse applied to the impactor by the water jet, said impact receiving means being supported for movement relative to the sprinkler head from an operating position located in the path of impactor movement to a non-operating position clear of the path of impactor movement.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |