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:
Aug. 15, 2023
Filed:
Mar. 10, 2020
Applicant:
Infiltrator Water Technologies, Llc, Old Saybrook, CT (US);
Inventors:
Gregory Trude, Bristol, CT (US);
Paul R Holbrook, Old Saybrook, CT (US);
Assignee:
Infiltrator Water Technologies, LLC, Old Saybrook, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D 29/14 (2006.01); E03F 5/06 (2006.01); E02D 29/12 (2006.01); E03F 5/02 (2006.01); E03F 11/00 (2006.01);
U.S. Cl.
CPC ...
E02D 29/124 (2013.01); E03F 5/024 (2013.01); E02D 29/14 (2013.01); E03F 11/00 (2013.01); E03F 2005/061 (2013.01);
Abstract
A safety grating has an arch shape cross section and is useful within a riser having a frusto-conical shape wall which riser is attached to a septic tank or another structure. The grating comprises a hub and radially extending arms, one or more of which is rotatable relative to the hub length at a hinge joint, to decrease the size of the grating and enable installation of the grating by passing the grating a smaller end opening of a riser.