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.

Date of Patent:
May. 26, 2015

Filed:

Jan. 17, 2014
Applicant:

Harvey Hilbert Haynes, Oakland, CA (US);

Inventor:

Harvey Hilbert Haynes, Oakland, CA (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E01C 23/02 (2006.01); B23D 1/08 (2006.01); E01C 11/10 (2006.01);
U.S. Cl.
CPC ...
E01C 23/026 (2013.01); E01C 11/106 (2013.01); B23D 1/08 (2013.01);
Abstract

An apparatus and method to install contraction joints in concrete slabs. The method uses a device, which inserts a strip of plastic or paper tape into freshly laced concrete, as the device is driven across a concrete slab. The tape is folded immediately prior to being inserted into freshly placed concrete, and functions to weaken the slab at the contraction joint location for the purpose of causing a crack to form in the slab. Plastic tape can be used, which functions as a moisture vapor retarder, and thereby, protects floor coverings from moisture damage, such as mold and mildew, at contraction joint locations.


Find Patent Forward Citations

Haynes, Harvey. (2015). Contraction joint installer for concrete slabs (U.S. Patent No. 9039321). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9039321

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…