US 2014/0231548 A1Published application

Chemical Application Apparatus for Sprinkler Systems

AssigneesGary L. Groves, Jr., Robert E. Smith, III

InventorRobert E. Smith, III

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Abstract

A liquid chemical dispenser for an irrigation system comprises a removable supply container for the chemical which, in a first embodiment, comprises a valve for preventing spillage of the chemical during attachment of the container to the dispenser. This feature allows the container to be mounted in an inverted position on the dispenser without loss of its contents. In a second embodiment, the chemical container comprises a membrane which is pierced by a dip tube when the container is attached to the dispenser. A section of the dip tube produces an annular vent passage in the membrane around the dip tube to provide vacuum relief. The configuration of the containers substantially reduces the chance of inadvertent contact with the contents and the simple design permits the containers to be disposable.

Claims5

Dependent claims

A liquid chemical dispenser for an irrigation system comprising:

a body having a passage for the flow of irrigation water;
a water inlet port on a first side of the body in fluid communication with the water passage, the inlet port having a first diameter;
a water discharge port on a second side of the body in fluid communication with the water passage, the discharge port having a diameter substantially equal to the first diameter;
an aspirator passage substantially orthogonal to and in fluid communication with the passage for the flow of water;
a removable chemical container for containing a liquid chemical for mixing with irrigation water flowing through the body connected to the body and in fluid communication with the aspirator passage, the container having an opening at a first end thereof;
a membrane which, when intact, seals the opening in the chemical container;
a dip tube in fluid communication with the aspirator passage for withdrawing liquid chemical from the chemical container, the dip tube having a tip for piercing the membrane.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/265,547Filed 30 Apr 2014
Priority: 16 Jun 2006
Published: 21 Aug 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

B05B 7/32
In which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid: the fed liquid or other fluent…
A01C 23/042
Distributing under pressure; Distributing mud; Adaptation of watering systems for fertilising-liquids: adding fertiliser to watering systems
B05B
Spraying apparatus
A01C
Planting

Family

Application11/424,773Division · filed 16 Jun 2006
Application14/265,547Division
US 2007/0290072 A1Published application
US 8,746,593 B2Related patent
US 9,370,788 B2Related patent
US 2014/0231548 A1This patent

From the US filing history. Foreign family members aren’t listed.