Plant husbandry – Receptacle for growing medium – Irrigator
Patent
1976-09-27
1977-12-06
Crowder, Clifford D.
Plant husbandry
Receptacle for growing medium
Irrigator
137403, 239 67, 251144, 251294, 251303, A01G 2700
Patent
active
040609340
ABSTRACT:
An automatic water tender is disclosed which waters a plant in accordance with the amount of moisture which has evaporated or has been transpired from the plant. The apparatus comprises a support base upon which a horizontal pivot shaft is pivotally mounted. A cantilever platform is rigidly mounted to the pivot shaft and a counter weight is mounted to the pivot shaft opposite to the cantilever platform. A plant container is supported by the cantilever platform, which contains the plant to be watered. The plant container on the platform is counter-balanced about the pivot shaft by the counter weight. A fluid reservoir is mounted on the support base in an elevated position with respect to the plant container. A valve means is mounted on the fluid reservoir and is operatively connected to the pivot shaft, for controllably conducting fluid from the reservoir to the plant container in response to the pivotal motion which the pivot shaft undergoes when the counter weight overbalances the platform. In this manner, the plant in the container is automatically watered after a predetermined loss of weight of water by the plant through evaporation and plant transpiration.
REFERENCES:
patent: 53337 (1866-03-01), Regester
patent: 392371 (1888-11-01), Skinner et al.
patent: 1606278 (1926-11-01), Wheaton
patent: 2809661 (1957-10-01), Gillespie et al.
patent: 3085364 (1963-04-01), Chapin
patent: 3168797 (1965-02-01), Patassy
patent: 3293799 (1966-12-01), Keller
patent: 3900134 (1975-08-01), Larson
Crowder Clifford D.
Feyrer James R.
Johnston Lamont
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