# Patent

## Title
Gear driven portable lawn sprinkler

## Abstract

The following table illustrates how the invention might be applied to a commercial cat cracker. __________________________________________________________________________ Item                      Design __________________________________________________________________________ Charge Oil at 470.degree. F. (25) Recycle bottoms      9,300 BPD Density              11.degree. API (45) Hydrotreated residuum 47,500 BPD Density              20.degree. API Atmos. tower side draw gas oil 2,500 BPD Density              33.degree. API Riser Steam Added at 470.degree. F. (41) + (43) + (46)   40,000 lb/hr (13) Stripping Steam at 470.degree. F. 500 psig (41) + (43) 366.degree. F. Blast Steam 1,800 lb/hr (38) Regenerated Catalyst at 1280.degree. F. 45  ton/min (30) Air for Regeneration Rate                 960,000 lb/hr Temperature          440 .degree.F. Pressure             55  psia (6)  Regenerator Pressure             48  psia Temperature          1280 .degree.F. Diameter             49  ft Length               110 ft (4)  Riser-Reactor (in sections from lift pot) (a)  Cylinder 82, length  4   ft Diameter             40  in. I.D. (b)  Cone 86, length      34  ft. 7 in. Diameter             40  diverging to 50 I.D. (c)  Cylinder 84, length  103 ft. 9 in. Diameter             50  in. I.D. (d)  Cone Length          3   ft. Diameter             50  diverging to 54 I.D. (e)  Cylinder length      20  ft. 3 in. Diameter             54  in. I.D. (38) Regenerated catalyst standpipe 40  in. I.D. (50) Lift pot cylinder, diameter 88  in. Height               72  in. (74) Top diameter of nozzle support structure 40  in. (72) Bottom diameter of nozzle support structure 50  in. (74),(60) Annulus throat       14.5 in. from item (74) to (60) (66) 8 Nozzles in frustoconical structure with insulation around nozzles and insulcrete cover. Tips of nozzles exposed (90) Outer nozzles - center distance to 7   in. outer edge of top diameter center distance to structure center 13  in. (94) Inner oil pipe - (in) 4   diverging to 6 I.D. (96) Outer steam pipe     8   inches (90) Slot length 2.6 inches (109) 1/2 inch diameter holes - 2 rows with 16 holes - 9 holes in bottom row and 7 holes in top row with staggered holes from row to row (114) 1/2 inch by 3.1 inch disc impingement baffle supported by at least four 1/2 inch diameter (item 115) compression rods welded to inside of weld cap (108) (108) 7 in. outside diameter weld cap, extra hard face inside and out (Stellite #1) cut 2.6 in. wide slot for full 7 inch length top (106) Longitudinal distance on nozzle (a)    from weld on 6 in. I.D. to first 1.5 inches row of holes (b)    from first row to second row of 2   inches holes (c)    from second row to weld cap end 1.5 inches (d)    from weld cap end to slot bottom 1.6 inches (92) fourteen 1 inch diameter steam nozzles for dispersion __________________________________________________________________________

## Background
## Claims

1. Apparatus comprising cylindrical sidewall, said inner tube being coaxially positioned in the outer tube, an annulus being defined between the inner tube and the outer tube; tube, the end of the inner tube protruding past the end of the outer tube, the sidewall of the inner tube having a plurality of apertures through it which are located within the outer tube and near said wall so as to establish a plurality of flow paths between the inside of the inner tube and the annulus; a cap, affixed to the end of the inner tube, having an exterior surface and an interior surface with a slot extending completely through said cap and at least part way diametrically acorss said cap, said slot having a length and a width; thereacross near the apertures so as to be longitudinally spaced from the cap and slot; the outer tube; exterior surface of the cap so as to sweep the length of the slot.

2. Apparatus as in claim 1 wherein the inner tube expands in diameter at an expansion near the apertures and plate baffle, and the apertures and plate baffle are positioned between the expansion and the slot.