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Primary Examiner: Bagwill, Robert E.
Assistant Examiner:
Attorney: Berger; Peter L.

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Title: Greenhouse

Abstract: A greenhouse is disclosed in which tubular curved members formed of standard unit lengths are used to form arched rafters while the same tubular members in uncurved form are used to form purlins. The tubular members are connected by suitable clamps to form a structural support for the roof of the greenhouse. A side leveling plate is provided on either side of the greenhouse to which the ends of the rafters are attached. The side leveling plate serves to anchor the rafters in the ground and also serves as a stapling surface for the covers placed over the roof of the structural support of the greenhouse. An environmental control system is provided in which the temperature, humidity and other environmental factors are controlled so as to provide enhanced growing climate for the tomato plants grown therein. Additionally, novel systems for correcting overwatering of the troughs as well as monitoring the water levels therein are provided.

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Inventors: Kehl, Donald K. (Panama City, FL, US)
Crist, Eugene A. (Panama City, FL, US)

Application Number: 657761
Filing Date: 1976-02-13
Publication_date: 1977-09-13
Assignee: Hygroponics, Inc. (Panama City, FL)
Primary Class(es): 47/59R 47/17, 261/106, 454/337
Other Classes:
US Patent Ref:

2198150	Apr, 1940	Barnhart	47/1.
2983076	May, 1961	Merrill	47/1.
3063104	Nov, 1962	Troxel	47/17.
3211380	Oct, 1965	Skerritt	261/106.
3446272	May, 1969	Gaines	47/17.
3515378	Jun, 1970	Hill	261/106.
3660933	May, 1972	Wong	47/1.
3747501	Jul, 1973	Honda et al.	47/17.
3807088	Apr, 1974	Jones	47/1.
3812616	May, 1974	Koziol	47/17.
3949522	Apr, 1976	Kehl et al.	47/17.

Other Refs: Other References: Greenhouse Climate Control--Acme Eng. & Mfg. Corp., Okla., 1969, pp. 11, 14, 28-29.
Cope, Ickes Braun Glasshouses, 1970, p. 6.
National Greenhouse Co. Catalog, No. 114, 1970-1971, pp. 16, 67, 69, 70, 81.