US3669356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprinkler head apparatus
Assignee: Senninger Irrigation Inc
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Filing: 1970-11-06
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Granted: 1972-06-13
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Expires: 1990-11-06
Abstract
Abstract A step by step rotatable sprinkler head apparatus of the impulse arm type is provided having improvements in the impulse arm water engaging portion in which two separate curved surfaces are employed, one for repelling the impulse arm and the other for providing a better distribution of water. The sprinkler head also has a new nozzle with removable inserts for changing the wear surface without replacing the complete nozzle portion of the sprinkler head. Improved internal water vanes and rear spreader nozzle having internal angular vanes are also provided.
Inventors
- 👤 Earl J Senninger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:03
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/0455; B05B15/00; B05B15/50
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
328 words
A step by step rotatable sprinkler head apparatus comprising in combination: a. a rotatable sprinkler body adapted to be coupled to a source of water under pressure; b. a water discharge nozzle attached to said body for discharging water therethrough, said water discharge nozzle including a removable portion for removing from said sprinkler body and said removable portion has a replaceable wear insert whereby inserts having different size openings can be utilized and easily replaced when worn; c. an impulse arm mounted to said sprinkler body, said impulse arm having a water engaging portion for repelling said impulse arm from said stream of water upon engagement therewith; d. resilient means connected to saId sprinkler body for biasing said impulse arm for movement in one direction for engagement with a water stream being discharged by said nozzle whereby said sprinkler head will be moved by the impulse arm intermittently engaging the stream of water; e. said impulse arm having a water engaging portion having a first curved surface for repelling said impulse arm from said stream of water upon engagement with said stream of water and a second curved surface for directing a portion of said stream of water intermittently on a different course whereby the areas within a circle being sprinkled will be more uniformly sprinkled; and f. nozzle restricting means for restricting the nozzle opening when said sprinkler is not being operated to prevent the entry of insects into said nozzle, said nozzle restricting means includes a rod which is retracted from said nozzle under pressure of said water sources and said rod passes through vanes located in said sprinkler body, said rod being adapted to retract beyond said vanes for a more complete flushing of said sprinkler body; said vanes being located in a cylinder inserted in said sprinkler body and said vanes extending through only a portion of said cylinder to allow said rod to retract away from said vanes when said sprinkler is operational.
Claim 2
Dependent Claim
328 words
A step by step rotatable sprinkler head apparatus comprising in combination: a. a rotatable sprinkler body adapted to be coupled to a source of water under pressure; b. a water discharge nozzle attached to said body for discharging water therethrough, said water discharge nozzle including a removable portion for removing from said sprinkler body and said removable portion has a replaceable wear insert whereby inserts having different size openings can be utilized and easily replaced when worn; c. an impulse arm mounted to said sprinkler body, said impulse arm having a water engaging portion for repelling said impulse arm from said stream of water upon engagement therewith; d. resilient means connected to saId sprinkler body for biasing said impulse arm for movement in one direction for engagement with a water stream being discharged by said nozzle whereby said sprinkler head will be moved by the impulse arm intermittently engaging the stream of water; e. said impulse arm having a water engaging portion having a first curved surface for repelling said impulse arm from said stream of water upon engagement with said stream of water and a second curved surface for directing a portion of said stream of water intermittently on a different course whereby the areas within a circle being sprinkled will be more uniformly sprinkled; and f. nozzle restricting means for restricting the nozzle opening when said sprinkler is not being operated to prevent the entry of insects into said nozzle, said nozzle restricting means includes a rod which is retracted from said nozzle under pressure of said water sources and said rod passes through vanes located in said sprinkler body, said rod being adapted to retract beyond said vanes for a more complete flushing of said sprinkler body; said vanes being located in a cylinder inserted in said sprinkler body and said vanes extending through only a portion of said cylinder to allow said rod to retract away from said vanes when said sprinkler is operational.
Claim 3
Dependent Claim
25 words
The apparatus according to claim 1 in which said impulse arm water engaging portion second curved surface is generally perpendicular to said first curved surface.
Claim 4
Dependent Claim
28 words
The apparatus according to claim 1 in which said sprinkler body has a second nozzle means said second nozzle means including a bar screen adapted to prevent clogging.
Claim 5
Dependent Claim
34 words
The apparatus according to claim 3 in which said second nozzle means includes vanes for spiralling the stream of water passing through said nozzle to spread said stream of water upon leaving said nozzle.
Claim 6
Dependent Claim
214 words
A step by step sprinkler head apparatus comprising in combination: a. a rotatable sprinkler body adapted to be coupled to a source of water under pressure; b. a water discharge nozzle attached to said body for discharging water therethrough; c. an impulse arm mounted to said sprinkler body, said impulse arm having a water engaging portion for repelling said impulse arm from said stream of water upon engagement therewith, said impulse arm water engaging portion having a first curved surface for repelling said impulse arm from said stream of water upon engagement with said stream of water and a second curved surface for directing said stream of water over an intermittent part different from said normal path of said stream of water and said second curved surface being substantially perpendicular to said first curved surface; d. resilient means connected to said sprinkler body for biasing said impulse arm for movement in one direction for engagement with a water stream being discharged by said nozzle whereby said sprinkler head will be moved by the impulse arm intermittently engaging the stream of water; and e. said discharge nozzle having a disengaging portion for removal from said sprinkler body and said disengaging portion having removable wear inserts whereby said inserts may be replaced without replacing said nozzle.
Claim 7
Dependent Claim
214 words
A step by step sprinkler head apparatus comprising in combination: a. a rotatable sprinkler body adapted to be coupled to a source of water under pressure; b. a water discharge nozzle attached to said body for discharging water therethrough; c. an impulse arm mounted to said sprinkler body, said impulse arm having a water engaging portion for repelling said impulse arm from said stream of water upon engagement therewith, said impulse arm water engaging portion having a first curved surface for repelling said impulse arm from said stream of water upon engagement with said stream of water and a second curved surface for directing said stream of water over an intermittent part different from said normal path of said stream of water and said second curved surface being substantially perpendicular to said first curved surface; d. resilient means connected to said sprinkler body for biasing said impulse arm for movement in one direction for engagement with a water stream being discharged by said nozzle whereby said sprinkler head will be moved by the impulse arm intermittently engaging the stream of water; and e. said discharge nozzle having a disengaging portion for removal from said sprinkler body and said disengaging portion having removable wear inserts whereby said inserts may be replaced without replacing said nozzle.
Claim 8
Dependent Claim
35 words
The apparatus in accordance with claim 5 in which said rotatable sprinkler body has a cylindrical member having radially extending internal vanes extending from the interior of said cylindrical member, located next to said nozzle.
Claim 9
Dependent Claim
34 words
The apparatus according to claim 6 in which said vanes are located on the nozzle end portion of said cylindrical member with the remaining portion of said cylindrical member having a smooth interior surface.
Claim 10
Dependent Claim
218 words
A step by step sprinkler head apparatus comprising in combination: a. a rotatable sprinkler body adapted to be coupled to a source of water under pressure; b. first and second water discharge nozzles attached to said body for discharging water therethrough, said first nozzle being adapted for discharge of water in a first direction; c. aN impulse arm mounted to said sprinkler body, said impulse arm having a water engaging portion for repelling said impulse arm from said stream of water upon engagement therewith; d. resilient means connected to said sprinkler body for biasing said impulse arm for movement in one direction for engagement with a water stream being discharged by said nozzle whereby said sprinkler head will be moved by the impulse arm intermittently engaging the stream of water; e. strainer means for blocking passage of larger pieces of trash through said second nozzle, said strainer means being a bar screen in the passageway to said second nozzle and integral with said sprinkler body; and f. spiralling means located beyween said strainer means and the tip of said second nozzle for spiralling water passing therethrough for more uniform sprinkling of the area surrounding said sprinkler head apparatus, said spiralling means being a cylindrical member having interior curved vanes for generating a vortex in the water passing therethrough.
Claim 11
Dependent Claim
218 words
A step by step sprinkler head apparatus comprising in combination: a. a rotatable sprinkler body adapted to be coupled to a source of water under pressure; b. first and second water discharge nozzles attached to said body for discharging water therethrough, said first nozzle being adapted for discharge of water in a first direction; c. aN impulse arm mounted to said sprinkler body, said impulse arm having a water engaging portion for repelling said impulse arm from said stream of water upon engagement therewith; d. resilient means connected to said sprinkler body for biasing said impulse arm for movement in one direction for engagement with a water stream being discharged by said nozzle whereby said sprinkler head will be moved by the impulse arm intermittently engaging the stream of water; e. strainer means for blocking passage of larger pieces of trash through said second nozzle, said strainer means being a bar screen in the passageway to said second nozzle and integral with said sprinkler body; and f. spiralling means located beyween said strainer means and the tip of said second nozzle for spiralling water passing therethrough for more uniform sprinkling of the area surrounding said sprinkler head apparatus, said spiralling means being a cylindrical member having interior curved vanes for generating a vortex in the water passing therethrough.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |