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:
May. 11, 1999
Filed:
Jul. 21, 1997
Applicant:
Inventors:
Edward F Rafalski, North Huntington, PA (US);
Alan Shuey, Monongahela, PA (US);
Assignee:
Ductmate Industries, Inc., E. Monongahela, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
49463 ; 49466 ;
Abstract
A duct access door to close and seal a circular opening in an HVAC duct is provided. The access door includes an outer cover which completely covers the circular hole and has a gasket for sealing against the duct. An inner panel fits within the circular hole and threaded fastener bias the outer cover towards the inner panel to seal the circular hole in the duct. Insulation may be provided between the outer cover and the inner panel of the access door if desired.
Rafalski, Edward. (1999). Duct access door for circular openings (U.S. Patent No. 5901502). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5901502
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile