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:
Oct. 01, 2019
Filed:
Jan. 25, 2017
Applicant:
Prinsco, Inc., Willmar, MN (US);
Inventor:
Carl Raymond Douglass, III, Spicer, MN (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L 9/133 (2006.01); B29C 48/30 (2019.01); B29C 48/153 (2019.01); B29C 48/34 (2019.01); E02D 31/02 (2006.01); B29K 23/00 (2006.01); B29C 49/00 (2006.01); B29C 48/00 (2019.01); B29C 48/21 (2019.01); B29C 48/90 (2019.01);
U.S. Cl.
CPC ...
F16L 9/133 (2013.01); B29C 48/153 (2019.02); B29C 48/30 (2019.02); B29C 48/303 (2019.02); B29C 48/34 (2019.02); B29C 48/0022 (2019.02); B29C 48/21 (2019.02); B29C 48/905 (2019.02); B29C 49/0021 (2013.01); B29K 2023/065 (2013.01); E02D 31/02 (2013.01);
Abstract
A webless corrugated dual wall foundation drain which is constructed as a hollow rectangular tubular member with an inner corrugated wall formed of HDPE and an integral outer smooth wall formed of the same material. The outer smooth wall of the foundation drain is attached to and integrally formed with the corrugations of the inner corrugated wall through a coextrusion process, thereby significantly enhancing the vertical beam stiffness of the foundation drain and eliminating the need for an internal supporting web.
Douglass, III, Carl. (2019). Webless corrugated dual wall foundation drain and related method (U.S. Patent No. 10428978). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10428978
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile