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:
Aug. 18, 1992
Filed:
Dec. 17, 1991
Peter G Lawton, Halifax, GB;
P. G. Lawton (Industrial Svcs.) Limited, Halifax, GB;
Abstract
In pressing wet concrete between a ram and a mold to compact the concrete and express water from it so as to produce a molded slab, a layer of filter material is provided between the ram or the base of the mold and the concrete and the filter material is secured by a discontinuous coat of adhesive applied as a transfer to the ram and/or to the base of the mold. The adhesive is applied over a sufficient area of the filter material to secure adhesion of the filter material to the ram or base of the mold. The discontinuous adhesive coating is provided as a pattern of particles which covers substantially the entire area of the face of the filter and is present over between 2% and 15% of the total surface area of the filter material.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile