Portable cold frame

Details Portable cold frame Portable cold frame

1988-02-22

1989-08-01

Hafer, Robert A.

Plant husbandry

Greenhouse, apparatus or method

47 29, 47 281, A01G 916, A01G 924

Patent

active

048522988

ABSTRACT:
A cold frame comprising a housing formed of one or more housing sections with opposed ends walls. The sections include channel-defining end edges interlockable with the end edges of adjacent sections and with the end walls. The sections at the joinders therebetween, forming outwardly directed channels for water exclusion. The sections include, along the opposed side walls thereof, elongate vents with connector bars between the aligned vents of adjacent sections for a gang operation of all of the vents along a side of the cold frame. Each section and end wall incldues positioning blocks mounted thereon for the reception of horizontal alignment pins therethrough and vertical anchoring stakes.

REFERENCES:
patent: 2626483 (1953-01-01), Service
patent: 3946521 (1976-03-01), Ours
patent: 4160340 (1979-07-01), Levett
patent: 4429489 (1984-02-01), Fischer
patent: 4768307 (1988-09-01), Holowecky

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