Gordon Douglas Cook

US Patent:

8385155, Feb 26, 2013

Filed:

Mar 5, 2010

Appl. No.:

12/718671

Inventors:

Newell D. Stacey - Draper UT, US
Gordon Cook - Midvale UT, US
Benjamin A. Hillery - Eagle Mountain UT, US
Glenn Courtright - West Jordan UT, US
Robin Padden - West Jordan UT, US

Assignee:

Exelis Inc. - McLean VA

International Classification:

H04B 11/00

US Classification:

367157

Abstract:

A digital underwater acoustic sensor system is disclosed. The system can include an acoustic sensor configured to detect an underwater acoustic signal and form an analog signal proportional to the underwater acoustic signal. The acoustic sensor can include an interior cavity. A digital communication module can be positioned within the interior cavity. The digital communication module comprises an amplifier configured to amplify the analog signal. An analog to digital converter is configured to convert the analog signal to a digital signal. A digital signal transmission module is configured to communicate the digital signal to a receiver.

US Patent:

59385030, Aug 17, 1999

Filed:

Nov 25, 1997

Appl. No.:

8/977791

Inventors:

Gordon Douglas Cook - Sandy UT
Richard Andrew Daley - Salt Lake City UT

Assignee:

Edo Western Corporation - Salt Lake City UT

International Classification:

B24B 4900

US Classification:

451 10

Abstract:

An apparatus for sensing and correcting force levels and vibrational frequencies in a cylindrical grinding machine which has active centers. The active centers have imbedded shear load sensors and imbedded actuators. The sensors provide real time grinding information and allow for a determination of undesirable force levels and vibrational frequencies. The actuators are a pair of piezoelectric stacks disposed on opposing sides of the center body in indentations. A voltage applied by a controller causes the piezoelectric stacks to expand and contract. The action of the piezoelectric stacks causes the tip of the center to laterally displace and apply a lateral force to the workpiece. An AC voltage waveform may be applied for force control. A DC voltage may be applied for displacement; for example, to rapidly remove the workpiece from the grinding wheel or to correct for misalignment between the workpiece and the wheel. Because the sensors and actuators are imbedded, they do not interfere with the work space or machine components.