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. 07, 2014
Filed:
Aug. 29, 2013
Applicant:
The Bilco Company, West Haven, CT (US);
Inventor:
Roger F. Joyce, Guilford, CT (US);
Assignee:
The Bilco Company, West Haven, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E02D 29/14 (2006.01); E06B 7/23 (2006.01);
U.S. Cl.
CPC ...
E06B 7/2301 (2013.01); E02D 29/1427 (2013.01); E02D 29/14 (2013.01);
Abstract
A hatch useful for forming a portal to a sub-surface facility has a cover plate with a plurality of fasteners around its perimeter. These fasteners apply an adjustable compressive force on the cover plate. A compressible material is affixed to the cover plate inward from the perimeter adjacent to the fasteners. A first vertical portion of a rectangular channel has a first end penetrating the compressive material to form a water barrier with the penetration distance being determined by the compressive force. A mechanical stop determines a maximum penetration depth.