Method for making fertilizer cartridge

Details Method for making fertilizer cartridge Method for making fertilizer cartridge

1981-11-13

1984-10-23

Hoag, Willard E.

Metal working

Method of mechanical manufacture

Assembling or joining

53431, 53469, 53474, 264261, 264262, 264267, 264269, B29C 500, B29D 3100

Patent

active

044779607

ABSTRACT:
A lawn and garden feeding apparatus includes a container made of transparent plastic, having inlet and outlet hose connections and a disposable cartridge which is inserted into the container. The cartridge comprises a gel with plant nutriment and a water soluble dye suspended therein with the cartridge fitting the inside of the container and having a bore communicating with the inlet and outlet connections. The container inlet is connected by a garden hose to a source of water and the outlet is connected by a hose to a conventional sprinkler or nozzle so that in use of apparatus, water flows through the cartridge bore drawing nutriment and dye from the gel in micro-feeding amounts, and is discharged through the sprinkler or nozzle. Extraction of dye from the gel, after a selected period of time, results in a perceptible change in gel color, indicating that the cartridge requires replacement.

REFERENCES:
patent: 2931140 (1960-04-01), Laffler et al.
patent: 4051628 (1977-10-01), Knapp
patent: 4224048 (1980-09-01), Pendergast
Smith, Alex., Introduction to General Inorganic Chemistry, _Century, NY (1906) pp. 588 & 589.

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