[Federal Register Volume 59, Number 81 (Thursday, April 28, 1994)]
[Unknown Section]
[Page ]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 94-10187]


[Federal Register: April 28, 1994]


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DEPARTMENT OF DEFENSE
Corps of Engineers

Availability for Exclusive, Partially Exclusive or Nonexclusive 
Licensing of U.S. Patents Concerning the Control of the Hardening of 
Cements and Binders
AGENCY: U.S. Army Engineer Waterways Experiment Station, DOD.

ACTION: Notice of availability for licensing.

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SUMMARY: In accordance with 37 CFR 404.7(a)(1)(i), announcement is made 
of the availability of U.S. Patents 5,252,266 and 5,268,032 for 
licensing. These patents have been assigned to the United States of 
America as represented by the Secretary of the Army, Washington, DC.

ADDRESSES: United States Army Corps of Engineers, Waterways Experiment 
Station, Attn: CEWES-CT-C, Vicksburg, MS 39180-6199.

FOR FURTHER INFORMATION CONTACT:
Ms. Ruth C. Little, (601)-634-2420.

SUPPLEMENTARY INFORMATION: The patents cover techniques for controlling 
the hardening or setting reactions of binders or cements of the type 
which require specific alkaline or acidic condition to initiate the 
reactions. The techniques described involve mixing an alkali- or acid-
reactive cement with an electrolyte to form a paste. An electric 
current is passed through the paste to decompose the electrolyte and 
generate an activating agent. The techniques described allow the paste 
to be handled and placed prior to the beginning of the setting reaction 
thereby avoiding the problems caused by short setting times that can 
result in serious flaws in the finished product and/or damaging or 
clogging of the mixing equipment. Further, because the activating agent 
is first generated at the electrode surface, the techniques are useful 
in casting hollow products from the cements and binders mentioned 
because there is no need to rotate the mold. The mold can be fabricated 
with one electrode in the center and the second electrode forming the 
outside of the mold. The acid or alkaline activator can be generated on 
the outside edge of the paste. The paste in the center of the mold 
remains soft and can be removed. Using this technique there is no need 
to rotate the mold to hold the paste out against the mold. The approach 
described can be used with starting materials such as ground granulated 
blast-furnace slag and a sodium chloride solution.
    Under the authority of section 11(a)(2) of the Federal Technology 
Transfer Act of 1986 (Pub. L. 99-502) and section 207 of Title 35, 
United States Code, the Department of the Army, Corps of Engineers, 
Waterways Experiment Station wishes to license the above United States 
Patents in an exclusive, partially exclusive or nonexclusive manner to 
any party interested in using the technology described in the above 
mentioned patents.
    Each interested party is requested to submit a proposal for an 
exclusive, partially exclusive or nonexclusive license. The proposals 
for using this technology will be evaluated using the following 
criteria: royalty, technical capability, size of business, and 
development plan.
Kenneth L. Denton,
Army Federal Register Liaison Officer.
[FR Doc. 94-10187 Filed 4-26-94; 8:45 am]
BILLING CODE 3710-08-M