Jonathan P Lucas

US Patent:

6992590, Jan 31, 2006

Filed:

Apr 27, 2001

Appl. No.:

09/843900

Inventors:

Steven Tietsworth - San Diego CA, US
Darin K Woolf - Oceanside CA, US
Jonathan D Lucas - San Diego CA, US
Igor Abramov - Encinitas CA, US
David G. Fern - Santee CA, US

Assignee:

Xsilogy, Inc. - San Diego CA

International Classification:

G08B 21/00

US Classification:

340611, 34053922, 340626

Abstract:

A system that includes a container containing a fluid, a fluid line coupled with the container, and a pump configured to pump the fluid out of the container through the fluid line. The system further includes a sensor that includes a wireless transmitter. The sensor is configured to sense the pressure in the fluid line and to periodically transmit, using the wireless transmitter, an alarm message when the pressure reaches an alarm threshold.

US Patent:

8117896, Feb 21, 2012

Filed:

Aug 9, 2007

Appl. No.:

11/836736

Inventors:

Jonathan Day Lucas - Encinitas CA, US
Manna Leon Warburton - San Diego CA, US
Todd Mlsna - Carlsbad CA, US
Sanjay Patel - San Diego CA, US
Stephen Terrence Hobson - San Marcos CA, US

Assignee:

Seacoast Science, Inc. - Carlsbad CA

International Classification:

G01N 30/08

US Classification:

73 2341

Abstract:

Apparatus, systems and methods are described for preconcentrators, chemical sensing systems and gas chromatographs. A preconcentrator is described that comprises a hollow enclosure containing a sorbent material. The enclosure may be a capillary tube that can be formed in to a desired shape and that may be heated. Heating may be accomplished by passing an electrical current through the capillary or other hollow enclosure form. The sorbent material can be a liquid, a solid, a porous ceramic material and/or a chemiselective polymer. The sorbent material can be coated to the inner wall of the enclosure. The hollow enclosure may be maintained in an insulated chamber. The preconcentrator acts to concentrate a vapor passed through the preconcentrator to a chemical sensing array that can detect chemicals present in the vapor. A gas passed through the hollow enclosure can provide a chemically concentrated input to a chromatographic column.

US Patent:

8333105, Dec 18, 2012

Filed:

Apr 30, 2010

Appl. No.:

12/771835

Inventors:

Jonathan Day Lucas - Encinitas CA, US
Manna Leon Warburton - San Diego CA, US
Todd Mlsna - Carlsbad CA, US
Sanjay V. Patel - San Diego CA, US
Stephen Terrence Hobson - San Marcos CA, US

Assignee:

Seacoast Science, Inc. - Carlsbad CA

International Classification:

G01N 30/08

US Classification:

73 2341

Abstract:

Apparatus, systems and methods are described for preconcentrators, chemical sensing systems and gas chromatographs. A preconcentrator is described that comprises a hollow enclosure containing a sorbent material. The enclosure may be a capillary tube that can be formed in to a desired shape and that may be heated. Heating may be accomplished by passing an electrical current through the capillary or other hollow enclosure form. The sorbent material can be a liquid, a solid, a porous ceramic material and/or a chemiselective polymer. The sorbent material can be coated to the inner wall of the enclosure. The hollow enclosure may be maintained in an insulated chamber. The preconcentrator acts to concentrate a vapor passed through the preconcentrator to a chemical sensing array that can detect chemicals present in the vapor. A gas passed through the hollow enclosure can provide a chemically concentrated input to a chromatographic column.

US Patent:

20040154383, Aug 12, 2004

Filed:

Dec 11, 2003

Appl. No.:

10/733785

Inventors:

Darin Woolf - Oceanside CA, US
Jonathan Lucas - Encinitas CA, US

International Classification:

G01N011/00

US Classification:

073/053010

Abstract:

This invention relates to a device and a method by which to directly measure based on pressure and/or temperature data and to control the flow rate, viscosity, density, velocity, pressure or temperature of a variety of fluids in motion with improved reliability and less susceptibility to disturbance of the measuring and control system while, at the same time, offering maximum flexibility for influencing measurement and control data. Components of the flow meter system are described and the methods for calibrating the system and determining pour volumes are explained.

US Patent:

6856251, Feb 15, 2005

Filed:

Apr 26, 2001

Appl. No.:

09/844147

Inventors:

Steven Tietsworth - San Diego CA, US
Darin K Woolf - Oceanside CA, US
Jonathan D Lucas - San Diego CA, US
Igor Abramov - Encinitas CA, US
David G. Fern - Santee CA, US

Assignee:

Xsilogy, Inc. - San Diego CA

International Classification:

G08B021/00

US Classification:

340626, 34053926, 340609

Abstract:

A system comprises a pressurized container configured to hold a pressurized gas and to supply controlled amounts of the pressurized gas to the system as required. The system also includes a sensor that includes a wireless transmitter. The sensor is configured to sense the pressure in the pressurized container and to periodically transmit, using the wireless transmitter, information related to the pressure in the pressurized container. The system also includes a control unit that includes a wireless receiver configured to receive the information transmitted by the sensor. The control unit is further configured to predict based on the received information when the pressure in the pressurized container will reach a predetermined threshold.

US Patent:

20150029281, Jan 29, 2015

Filed:

Oct 15, 2014

Appl. No.:

14/515221

Inventors:

- Dublin 2, IE
Kenneth Andrew Regas - San Diego CA, US
Jonathan Day Lucas - San Diego CA, US
David Collins Burney - San Diego CA, US
Patrick Kirk - San Diego CA, US
Steve Inderieden - San Diego CA, US
Neil Doherty - San Diego CA, US
Lai Say Poh - Singapore, SG
Joo Beng Koh - Singapore, SG
Gilbert Magsakay - Singapore, SG

International Classification:

B41J 11/00

US Classification:

347104

Abstract:

A printer includes a vacuum belt assembly for moving print media in a media feed direction along a media path. The vacuum belt assembly includes: a plurality of spaced apart endless belts tensioned between first and second pulleys; a vacuum chamber for drawing print media onto an upper surface of the belts; and a plurality of vacuum antechambers communicating with the vacuum chamber, each vacuum antechamber having a perimeter opening for suction engagement with print media, a length dimension of each perimeter opening extending longitudinally in the media feed direction. A first perimeter opening of a first vacuum antechamber positioned towards an upstream side of the vacuum belt assembly is shorter than a second perimeter opening of a second vacuum antechamber positioned towards a downstream side of the vacuum belt assembly. The upstream and downstream sides are defined with respect to the media feed direction.

US Patent:

20140240423, Aug 28, 2014

Filed:

Jun 20, 2013

Appl. No.:

13/922776

Inventors:

- Dublin, IE
Kenneth Andrew Regas - San Diego CA, US
Jonathan Day Lucas - San Diego CA, US
David Collins Burney - San Diego CA, US
Patrick Kirk - San Diego CA, US
Steve Inderieden - San Diego CA, US
Neil Doherty - San Diego CA, US
Lai Say Poh - Singapore, SG
Joo Beng Koh - Singapore, SG
Gilbert Magsakay - Singapore, SG

International Classification:

B41J 11/00

US Classification:

347104

Abstract:

A printer includes a vacuum belt assembly for moving print media in a media feed direction along a media path. The vacuum belt assembly includes: a plurality of endless belts tensioned between first and second pulleys, the first and second pulleys having respective first and second axes of rotation perpendicular with the media feed direction; and a vacuum chamber for drawing print media onto an upper surface of the belts. Each belt is independently laterally slidable along one of the first and second axes.

US Patent:

20140240424, Aug 28, 2014

Filed:

Jun 20, 2013

Appl. No.:

13/922926

Inventors:

- Dublin, IE
Kenneth Andrew Regas - San Diego CA, US
Jonathan Day Lucas - San Diego CA, US
David Collins Burney - San Diego CA, US
Patrick Kirk - San Diego CA, US
Steve Inderieden - San Diego CA, US
Neil Doherty - San Diego CA, US
Lai Say Poh - Singapore, SG
Joo Beng Koh - Singapore, SG
Gilbert Magsakay - Singapore, SG

International Classification:

B41J 11/00

US Classification:

347104

Abstract:

A printer includes a vacuum belt assembly for moving print media in a media feed direction along a media path. The vacuum belt assembly includes: a plurality of spaced apart endless belts tensioned between first and second pulleys; a vacuum chamber for drawing print media onto an upper surface of the belts; and a plurality of vacuum antechambers communicating with the vacuum chamber, each vacuum antechamber having a perimeter opening for suction engagement with print media, a length dimension of each perimeter opening extending longitudinally in the media feed direction. A first perimeter opening of a first vacuum antechamber positioned towards an upstream side of the vacuum belt assembly is shorter than a second perimeter opening of a second vacuum antechamber positioned towards a downstream side of the vacuum belt assembly. The upstream and downstream sides are defined with respect to the media feed direction.