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:
Sep. 04, 1990
Filed:
Jun. 16, 1989
Howard A Anderson, Pittsburgh, PA (US);
Mobay Corporation, Pittsburgh, PA (US);
Abstract
The rod-support chair of the present invention comprises a plastic channel made of a thermoplastic resin preferably selected from the group consisting of polycarbonate, aromatic polyester carbonate and aromatic polyesters. The channel is further characterized in that its physical dimensions and material properties permit its elastic and bending across its long dimension around at least part of the circumferential cross-section of a reinforcing rod and provide support for the rod for a period which is necessary for the concrete to set. The channel in its 'in use' configuration is left in the cured, or set concrete and does not interfere with the setting process nor does it contribute to rust formation.