Plastic grape stake

Claim 2

A plastic stake comprising a pair of like hollow columns having longitudinally extending integral external ribs with the interior portions of said ribs having a generally triangular cross section and formed by the extrusion of a high strength plastic material, a first column being disposed transversely across the top of a second column as a crosspiece with the ribs on the underside of the first column resting upon the ends of the ribs of the second column and a pipe extending into the open top of the second column transversely through the first column with adhesive joining the columns and pipe in a rigid unit.

Claim 3

The stake of claim 1 further defined by said pipe extending upwardly from said crosspiece for engagement with a sprinkler, and a crosspipe extending laterally through said second column near the bottom thereof in sealing relation thereto and having an opening in the top of the pipe communicating with the interior of said second column for supplying water to the column to flow upwardly therethrough to said sprinkler.

Claim 4

The stake of claim 1 further defined by spaced lateral indentations in said external ribs for attachment of wires thereto for the support of vines or the like.

Claim 5

A grape stake comprising a pair of like columns having a hollow interior and spaced apart longitudinal exterior ribs with spaced lateral indentations therein, the interior portions of said ribs having a generally triangular cross section, one of the columns comprising an upright and the other column comprising a crosspiece extending transversely of the upright across the top thereof with ribs on the crosspiece resting on the upper ends of ribs of the upright, a connecting pipe having an external diameter substantially equal to the internal diameter of said columns extending into the upper end of said upright and through a mating opening transversely through the crosspiece and rigidly secured to both upright and crosspiece to join them all together as a single unit for insertion of the upright in the ground and attachment of wire to upright and crosspiece at rib indentations for supporting vines.

Claim 6

A grape stake comprising a pair of like columns having a hollow interior and spaced apart longitudinal exterior ribs with spaced lateral indentations therein, the interior portions of said ribs having a generally triangular cross section, one of the columns comprising an upright and the other column comprising a crosspiece extending transversely of the upright across the top thereof with ribs on the crosspiece resting on the upper ends of ribs of the upright, a connecting pipe having an external diameter substantially equal to the internal diameter of said columns extending into the upper end of said upright and through a mating opening transversely through the crosspiece and rigidly secured to both upright and crosspiece to join them all together as a single unit for insertion of the upright in the ground and attachment of wire to upright and crosspiece at rib indentations for supporting vines.

Claim 7

The grape stake of claim 4 further defined by a crosspipe extending laterally into said upright substantially below said crosspiece and communicating with the interior of said upright at the top of the crosspipe for supplying water to the interior of the upright, and said connecting pipe extending substantially upward from said crosspiece and adapted for connection to a sprinkler head whereby the stake comprises an irrigation unit.

Claim 8

A plastic irrigation stake comprising a hollow cylindrical column having four external ribs extending longitudinally thereof and equally spaced apart about the column, said ribs having a dimension radially of said column substantially equal to twice the wall thickness of said column and the interior portion of said ribs having a generally triangular cross section.

Claim 9

A plastic irrigation stake comprising a hollow cylindrical column having four external ribs extending longitudinally thereof and equally spaced apart about the column, said ribs having a dimension radially of said column substantially equal to twice the wall thickness of said column and the interior portion of said ribs having a generally triangular cross section.