Patent US3573947 - Accelerator for gypsum plaster - Google PatentsApr 6, 1971 . United States Patent 3,573,947 A'CCELERATGR FOR GYPSUM . Patent 1,460,396 disclosed a process in which the accelerator was formed.us patent of process gypsum,Patent US3359146 - Method of producing gypsum articles having .More particularly, this invention relates to a process of producing gypsum ... UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No.United States v. United States Gypsum Co. :: 333 U.S. 364 (1948 .In 1912, United States Gypsum received as assignee a patent issued to one Utzman, No. 1,034,746, covering both process and product claims on board with.
In 1912, United States Gypsum received as assignee a patent issued to one Utzman, No. 1,034,746, covering both process and product claims on board with.
United States Patent 0. 1 . sure calcining process in which the gypsum rock is heated in open . quired, the alpha semihydrated gypsum can be used. The.
The corporate defendants are: United States Gypsum Company (hereinafter referred to as .. 1,029,328 (a process patent), and under a third Utzman patent No.
UNITED STATES GYPSUM COMPANY, a corporation, Plaintiff, v. .. This patent discloses water cooled apparatus and process for making mineral wool.
Prior Publication US 2015/0093309 A1, Apr. 2, 2015 . A method of recycling of by-products of Merseberg process and Solvay process in an . i. treating the brine with soda ash distiller waste for desulphatation of brine to obtain gypsum;.
Serious Materials' Elegant Process Greens Gypsum Drywall. December 17th, 2008 by Eric Lane . Serious Materials owns U.S. Patent Application Pub. No.
Two“ general process variations for the purification . of-phosphogypsum are ... for Purification of Gypsum“, U. S. Patent 4,424,196 to. USG Corporation (January.
Gypsum - full listing of recent patents, inventions and new technologies and a free . Partially continuous countercurrent process for converting gypsum to ammonium sulfate and calcium carbonate .. United States Gypsum Company. 04/21/16
A biological process for the reclamation of flue gas desulfurization gypsum using mixed .. Sonta, H. and Shiratori, T. (1988), US Patent Number 4,931,262. 28.
Nov 25, 2003 . United States Patent 6652825 . US Patent References: . 4842842, Process for producing α-form gypsum hemihydrate, 1989-06-27, Kudo.
Oct 23, 2009 . reacted with SO2 in the PIPco processes to form elemental sulphur. Sulphur with the purity . The basic steps of the sulphur recovery process from gypsum are: • Reduction of gypsum to ... US Patent. 5,057,298, assigned to.
of inequitable conduct in the patent process is a controversial and prominent . Counsel, Office of the Solicitor, U.S. Patent & Trademark Office, for his assistance. .. See Gypsum, 352 U.S. at 457 ("The rule is an extension of the equitable.
For a more complete list of USG's U.S. patents and applications, and those of its subsidiaries, United States Gypsum Company and USG Interiors LLC, please.
In the typical process the gypsum board is made face side down. The face .. An example of pressure application to a board surface is found in U.S. Pat. Nos.
May 3, 2011 . Intrinsic Kinetics of Gypsum and Calcium Sulfate Anhydrite . Complementary quantitative modeling of the dissolution process was .. Patents only search . U.S. Energy Department awards $40 million to speed nuclear waste.
Typical Manufacturing Processing Flow Chart; Newer Manufacturing Process Flow Chart . Gypsum plaster, common lime, hydraulic limes, natural pozzolana, and . to the cement by Joseph Aspdin of Leeds, England who obtained a patent for . The first cement manufactured in the United States was produced in 1871 by.
High strength calcined gypsum and process of manufacturing same. US Patent 1, 901, 051, 1933. 17. Hoggatt GA. Method of producing gypsum plaster.
Canada starts anti-dumping case against US gypsum wallboard . The NuGyp process has patents granted or pending in over 70 countries worldwide and.
. various crystallisation processes and some double decomposition reactions between inorganic salts. . In aqueous system containg no ammonia, gypsum and potassium chloride . Several patent applications for this use of ammonia have been made [ 3 - 5 ] , but few kinetic data have been published. ... 5 U.S. Patent No.