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:
Feb. 01, 2022
Filed:
Dec. 23, 2019
Saudi Arabian Oil Company, Dhahran, SA;
Ahmad O. Al-Khowaiter, Dhahran, SA;
Aqil Jamal, Dhahran, SA;
Issam T. Amr, Khobar, SA;
Rami Bamagain, Khobar, SA;
Ali Shakir Al-Hunaidy, Dhahran, SA;
Bandar A. Fadhel, Dhahran, SA;
Saudi Arabian Oil Company, Dhahran, SA;
Abstract
A cementitious print head and a cementitious printing methodology may include a feed barrel, a print head nozzle, a COsupply, a steam supply, a selective valve assembly in communication with the COsupply and the steam supply, a plurality of dual use extrusion head injectors, and a print head controller. The print head controller is operatively coupled to the selective valve assembly and is programmed to execute a COand steam injection protocol where steam may be selected for injection by the extrusion head injectors into a cementitious composition as it is extruded from the print head nozzle to enhance a hydration reaction and formation of hydroxide in the cementitious composition before COmay be selected for injection by the extrusion head injectors into the cementitious composition as it is extruded from the print head nozzle to enhance a carbonation reaction in the cementitious composition.