# US 5,702,056 A · Sprinkler

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- Number: US 5,702,056 A
- Document ID: US5702056A
- Status: Granted
- Kind: A
- Application number: 08/678,645
- Filed: 1996-07-11
- Granted: 1997-12-30
- Earliest claimed: 1996-07-11
- Inventors: Ho-M Yang
- Web page: https://patentgrep.com/patent/US5702056A

## CPC

- B05B 15/74: driven by the discharged fluid
- B05B 3/06: by jet reaction
- B05B: SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES (spray-mixers with nozzles B01F25/72; processes for applying liquids or other fluent materials to surfaces by spraying B05D)

## Abstract

A sprinkler comprises a hollow box, a first casing and a second casing covering the hollow box, a telescopic pipe disposed in the hollow box longitudinally, and a sprinkling disk disposed on the telescopic pipe. The telescopic pipe has an outer pipe, a first middle pipe in the outer pipe, a second middle pipe in the first middle pipe, and an inner pipe in the second middle pipe. The sprinkling disk has a lower disk and an upper disk.

## Claims

### Claim 1

A sprinkler comprises:
a hollow box, a first casing and a second casing covering said hollow box, a telescopic pipe disposed in said hollow box longitudinally, and a sprinkling disk disposed on said telescopic pipe,
said telescopic pipe having at least an outer pipe, a middle pipe in said outer pipe, and an inner pipe in said middle pipe,
a circular hole formed on a lower periphery of said hollow box,
a generally round opening formed on a top portion of said hollow box,
four hollow tubes disposed on a top periphery of said hollow box,
a threaded hole formed on a lower periphery of said outer pipe,
a joint having a threaded end passing through said circular hole to be inserted in said threaded hole and a distal end to connect a water pipe,
said first casing having two rods, a weighted plate, a protrusion and a first curved top,
a lobe extending downward from an outer rim of said first casing,
said second casing having two bars, a weighted block, a protuberance and a second curved top,
a lug extending downward from an outer rim of said second casing,
said sprinkling disk having a lower disk and an upper disk,
a hollow connection disposed on said lower disk,
a plurality of conduits communicating with said hollow connection,
a plurality of recesses formed on a rim of said lower disk,
a plurality of grooves formed on a rim of said upper disk to match said corresponding recesses to form a plurality of through holes to receive said corresponding conduits,
a bolt fastening said lower disk on an upper end of said inner pipe,
said rods and said bars inserted in said corresponding hollow tubes, and
wherein a water enters said water pipe, said joint and said telescopic pipe to push said telescopic pipe to extend upward.