Sanitary rotary tank cleaning apparatus
US-10105740-B2 · Oct 23, 2018 · US
Irrigation sprinkler with debris flushing perforated riser
US9302287B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9302287-B2 |
| Application number | US-84465010-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 27, 2010 |
| Priority date | Jul 27, 2010 |
| Publication date | Apr 5, 2016 |
| Grant date | Apr 5, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A sprinkler includes an outer case having an upper end and a tubular riser telescopically mounted in the outer case for extension and retraction from the upper end of the case. The riser has an upper portion with a plurality of circumferentially spaced apertures sized to allow debris to be carried through the apertures with flowing water. A riser seal is positioned and configured to substantially prevent water from escaping between the riser and the outer case when the riser is extended. A drive assembly is mounted inside the riser and includes a drive shaft that is co-axially mounted at an upper end of the riser and rotates when pressurized water is supplied to the outer case. A cylindrical nozzle housing is co-axially coupled to the drive shaft and is rotatable relative to the riser. The nozzle housing is positioned and configured to define a gap between an outer cylindrical wall of the nozzle housing and a complementary outer cylindrical wall of the tubular riser. The apertures in the upper portion of the riser intersect the gap and are configured and sized to receive pressurized water below the riser seal when the riser is retracted.
First claim
Opening claim text (preview).
We claim: 1. A sprinkler, comprising: an outer case having an upper end; a tubular riser telescopically mounted in the outer case for extension and retraction from the upper end of the case, the riser having an upper portion with a sediment basin and a plurality of circumferentially spaced apertures communicating with the sediment basin and sized to allow debris to be carried through the apertures with flowing water; a riser seal positioned and configured to substantially prev…
Assignees
Inventors
Classifications
Operations & Transport · mapped topic
Human Necessities · mapped topic
Operations & Transport · mapped topic
- B05B3/0417Primary
Operations & Transport · mapped topic
- B05B15/10Primary
Operations & Transport · mapped topic
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Frequently asked questions
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- What does patent US9302287B2 cover?
- A sprinkler includes an outer case having an upper end and a tubular riser telescopically mounted in the outer case for extension and retraction from the upper end of the case. The riser has an upper portion with a plurality of circumferentially spaced apertures sized to allow debris to be carried through the apertures with flowing water. A riser seal is positioned and configured to substantial…
- Who is the assignee on this patent?
- Dunn Richard M, Davidson David W, Hunter Industries
- What technology area does this patent fall under?
- Primary CPC classification B05B3/0417. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 05 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).