The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 1993
Filed:
Jun. 12, 1991
Roger H Appeldorn, White Bear Lake, MN (US);
Paul A Jaster, Arden Hills, MN (US);
Sanford Cobb, Jr, St. Mary's Point, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
An improved greenhouse comprising a plurality of walls, a light-transmitting roof panel; and an optical system located inside the greenhouse is described. The optical system comprises a plurality of rows of elongate spaced optical panels generally adjacent and extending transversely across the light-transmitting roof panel. Each panel comprises a thin backing portion forming first and second concave, opposite sides, a first light reflecting means including light-reflecting surfaces attached to the first side of the backing and a second light reflecting means including light-reflecting surfaces attached to the second side of the backing such that the light-reflecting surfaces face generally oppositely. Also disclosed is an improved method of growing plants utilizing such a greenhouse construction.