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:
Jun. 16, 2009
Filed:
Oct. 03, 2005
Applicants:
Paul Jaster, Carlsbad, CA (US);
John Futhey, Santa Rosa, CA (US);
Inventors:
Paul Jaster, Carlsbad, CA (US);
John Futhey, Santa Rosa, CA (US);
Assignee:
Solatube International, Inc., Vista, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04B 7/18 (2006.01); G02B 17/00 (2006.01); G02B 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The inside surface of a cover for a skylight is molded to have a variable prism that directs low-angle light into the skylight tube and that reflects away some high-angle light, to achieve a more constant light output over the course of the day. The prism is established by a series of circular parallel grooves, with grooves nearer the apex of the cover having cross-sections that are different than the cross-sections of grooves nearer the periphery of the cover.