[Federal Register Volume 65, Number 78 (Friday, April 21, 2000)]
[Notices]
[Pages 21398-21399]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 00-10007]


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DEPARTMENT OF COMMERCE

National Institute of Standards and Technology


  

AGENCY: National Institute of Standards and Technology Commerce, 
Commerce.

ACTION: Notice of government owned inventions available for licensing.

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[[Page 21399]]

SUMMARY: The invention listed below is owned in whole or in part by the 
U.S. Government, as represented by the Department of Commerce. The 
Department of Commerce's ownership interest in the invention is 
available for licensing in accordance with 35 U.S.C. 207 and 37 CFR 
Part 404 to achieve expeditious commercialization of results of 
Federally funded research and development.

FOR FURTHER INFORMATION CONTACT: Technical and licensing information on 
this invention may be obtained by writing to: National Institute of 
Standards and Technology, Office of Technology Partnerships, Building 
820, Room 213, Gaithersburg, MD 20899; Fax 301-869-2751. Any request 
for information should include the NIST Docket No. and Title for the 
relevant invention as indicated below.

SUPPLEMENTARY INFORMATION: NIST may enter into a Cooperative Research 
and Development Agreement (``CRADA'') with the licensee to perform 
further research on the inventions for purposes of commercialization. 
The invention available for licensing is:
    NIST Docket Number: 99-016/025US.
    Title: Device for Stable Speed Determination in Machining.
    Abstract: The device utilizes a non-contact force actuator to drive 
a machine-tool with a train of impulsive forces having a known, time-
varying frequency to identify the speeds least likely to produce 
chatter (regenerative vibrations). This can be done in real time 
without the need for exhaustive cutting tests. The machine-tool spindle 
and a non-contact magnetic force actuator are used to produce the time-
varying impulse train. This impulse train has significant energy at the 
spindle speed and its harmonics. As the spindle speed is ramped up from 
zero to the maximum speed, those speeds that maximize the dynamic 
response of the tool are the speeds that minimize regenerative chatter. 
The device is suitable for integration with the machine-tool 
controller, and could potentially allow the optimal speeds for each 
tool to be downloaded and stored for later use in NC programming.

    Dated: April 17, 2000.
Karen H. Brown,
Deputy Director.
[FR Doc. 00-10007 Filed 4-20-00; 8:45 am]
BILLING CODE 3510-13-M