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:
Mar. 02, 2021
Filed:
Jun. 05, 2017
Applicant:
Emseal Joint Systems Ltd., Westborough, MA (US);
Inventors:
Bill Witherspoon, Guelph, CA;
Lester Hensley, Westborough, MA (US);
Assignee:
EMSEAL JOINT SYSTEMS LTD., Westborough, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E04B 1/68 (2006.01); E04B 1/94 (2006.01); E04B 1/98 (2006.01); E04C 2/20 (2006.01);
U.S. Cl.
CPC ...
E04B 1/948 (2013.01); E04B 1/68 (2013.01); E04B 1/6806 (2013.01); E04B 1/6812 (2013.01); E04B 1/944 (2013.01); E04B 1/98 (2013.01); E04C 2/205 (2013.01);
Abstract
An expansion joint system comprises a core; and a fire retardant included in the core in an amount effective to pass testing mandated by UL 2079. The core with the fire retardant is configured to facilitate compression of the expansion joint system when installed between substrates by repeatedly expanding and contracting to accommodate movement of the substrates; and the core with the fire retardant included therein is configured to pass the testing mandated by UL 2079.