David O Carson

US Patent:

6354988, Mar 12, 2002

Filed:

Jun 17, 1999

Appl. No.:

09/334956

Inventors:

David Michael Carson - Newtown CT
William Andrew Romanauskas - Southbury CT

Assignee:

Kendro Laboratory Products, LLP - Newton CT

International Classification:

B04B 914

US Classification:

494 82, 494 84, 464180, 74574

Abstract:

In a centrifuge comprising a rotor shaft assembly, a diaphragm disposed about the rotor shaft assembly reduces noise and vibration. The diaphragm permits the rotor shaft assembly to pivot off a vertical axis while substantially limiting horizontal displacement thereof. Also, where a centrifuge includes a rotor shaft and a drive shaft, a member situated between the rotor shaft and the drive shaft substantially limits vertical displacement of the rotor shaft while allowing angular deflection of the rotor shaft with respect to the drive shaft.

US Patent:

6638203, Oct 28, 2003

Filed:

Feb 22, 2002

Appl. No.:

10/079535

Inventors:

David Michael Carson - Newtown CT
William Andrew Romanauskas - Southbury CT

Assignee:

Kendro Laboratory Products, LP - Newtown CT

International Classification:

B04B 914

US Classification:

494 82, 494 84, 464180, 74574

Abstract:

In a centrifuge comprising a drive shaft assembly, a diaphragm disposed about the drive shaft assembly reduces noise and vibration. The diaphragm permits the drive shaft assembly to pivot off a vertical axis while substantially limiting horizontal displacement thereof. Also, where a centrifuge includes a rotor shaft and a drive shaft, a member situated between the rotor shaft and the drive shaft substantially limits vertical displacement of the rotor shaft while allowing angular deflection of the rotor shaft with respect to the drive shaft.

US Patent:

6747427, Jun 8, 2004

Filed:

May 16, 2003

Appl. No.:

10/438846

Inventors:

David Carson - Newtown CT

Assignee:

Kendro Laboratory Products, LP - Newtown CT

International Classification:

H02P 700

US Classification:

318432, 318375, 318434, 318433

Abstract:

Controlling the torque of a motor by driving a centrifuge rotor connected to the motor; increasing a motor torque of the motor to a specified level; detecting revolutions per minute of the centrifuge rotor; adjusting the motor torque based on detected revolutions per minute; decreasing the motor torque to a constant torque over a range of revolutions per minute; and increasing the motor torque when the detected revolutions per minute are outside of the range.

US Patent:

6903525, Jun 7, 2005

Filed:

Aug 5, 2003

Appl. No.:

10/633533

Inventors:

David M. Carson - Newtown CT, US
Richard Hall - Southbury CT, US

Assignee:

Kendro Laboratory Products, LP - Asheville NC

International Classification:

H02P007/00
G05D023/00

US Classification:

318432, 318641, 318471

Abstract:

A method and apparatus is herein disclosed for determining the motor performance of an electric motor through monitoring the temperature of rotor magnets. The temperature is determined by initially heating the rotor magnets to two known temperatures and subsequently recording the temperature at each known temperature. From the known and recorded temperatures, an offset, if any, is calculated. An actual temperature is then determined from the subsequent temperatures of the magnets and the offset. The actual temperature is then used as a basis to determine the motor performance.

US Patent:

7166978, Jan 23, 2007

Filed:

Jun 6, 2005

Appl. No.:

11/144826

Inventors:

David M. Carson - Newtown CT, US
Richard Hall - Southbury CT, US

Assignee:

Kendro Laboratory Products, LP - Newtown CT

International Classification:

H02P 7/00

US Classification:

318432, 318434, 318634, 318641, 318431, 318708, 318738, 318471, 318930, 310315, 310 16, 310 68 C, 388934

Abstract:

An electric motor system includes an electric motor, a temperature sensor mounted therein capable of measuring a local temperature and generating a temperature related signal, and a processor configured to calculate an actual temperature of a rotor magnet from the temperature related signal, and an actual output torque from the actual rotor magnet temperature. A method for determining the actual output torque of a motor includes sensing a temperature within the motor, calculating a rotor magnet temperature from the sensed temperature, and calculating the actual output mechanical torciue from the rotor magnet temperature.

US Patent:

7458928, Dec 2, 2008

Filed:

May 20, 2003

Appl. No.:

10/441120

Inventors:

David M. Carson - Newtown CT, US
Vijay Mehta - Bethel CT, US
Harvey Schneider - Southbury CT, US

Assignee:

Kendro Laboratory Products, LP - Newtown CT

International Classification:

B04B 9/10

US Classification:

494 37, 738659, 210145, 210739, 494 7, 494 8, 494 9, 494 10

Abstract:

A method and apparatus for a centrifuge energy management system prevents the energy level of a rotor from exceeding a predetermined containment limit for the centrifuge by monitoring the energy level and either terminating a run operation of the centrifuge if it surpasses the containment limit or reducing the rotational speed of the rotor.

US Patent:

8265990, Sep 11, 2012

Filed:

May 14, 2009

Appl. No.:

12/465907

Inventors:

John S. Penberthy - Croton on Hudson NY, US
Simon A. Assaad - Far Hills NJ, US
David V. Carson - Westport CT, US
Bradley G. Johnson - Brooklyn NY, US

Assignee:

Utrom Processing Co. L.L.C. - Wilmington DE

International Classification:

G06Q 30/00

US Classification:

705 141

Abstract:

A system and method for selecting portions of content, and media content sets to be delivered over a packet based network is provided. The selected portions of content (such as a web page) may be keywords such as a word or a group of words. The media content sets may include one or more of video content (that may include an audio portion), audio content, graphics, images, or other multimedia or single media content. The media content set may include advertising, informational, business, educational, governmental, institutional, customized (e. g. , personalized) content and/or other content. According to an example embodiment, the present invention provides a heuristic model employing a piece-wise linear optimization function to select keywords and the media content sets for delivery by a media delivery provider.

US Patent:

20080288973, Nov 20, 2008

Filed:

May 18, 2007

Appl. No.:

11/750665

Inventors:

David V. Carson - Westport CT, US
Simon A. Assaad - New York NY, US

International Classification:

H04N 7/10

US Classification:

725 32, 725 34

Abstract:

A system and method of providing advertisements for video content in a packet based communication system is provided. In one embodiment, the method includes storing a plurality of advertisements in a memory, wherein each of the plurality of advertisements is configured to be displayed concurrently with a video player having a perimeter and each of the plurality of video advertisements is configured to be displayed adjacent the perimeter of the video player such as, for example, around the entire perimeter of the video player. The method further comprises receiving a plurality of requests for an advertisement from a plurality of clients and wherein each of the plurality of clients is displaying one of a plurality of web pages that form part of a plurality of web sites. Each of the plurality of web pages includes a hyperlink configured to cause video content to be presented in a video player and the plurality of requests are received as a result of actuation of the hyperlink included in the plurality of web pages. The method further includes transmitting one of the plurality of advertisements to each of the plurality of clients for display adjacent the perimeter of the video player. The video content, advertisements, and web pages may be transmitted to the clients via two or more different servers. A request for data resulting from actuation of a hyperlink associated with an advertisement may be logged and redirected to a content provider such as the advertiser.