Michael Paul Chekal, 617378 Harrington Dr, Brighton Twp, MI 48116

8388745, Mar 5, 2013

Nov 9, 2010

12/942514

Dana G. Pelletier - Ortonville MI, US
Michael S. McClain - Ortonville MI, US
Michael P. Chekal - Brighton MI, US

Oxus America, Inc. - Rochester Hills MI

B01D 53/02

96108, 96134, 96147, 96151, 96152

A sieve module includes an impermeable housing and an adsorptive media bed. The impermeable housing is puncturable at a first puncture location to receive gas from an exterior of the impermeable housing. The impermeable housing is also puncturable at a second puncture location to expel gas to the exterior of the impermeable housing. The adsorptive media bed is disposed within the impermeable housing. The gas flows through the impermeable housing from the first puncture wound to the second puncture location by flowing through the adsorptive media bed.

2008007, Apr 3, 2008

Sep 29, 2006

11/541497

Dana G. Pelletier - Ortonville MI, US
Michael P. Chekal - Brighton MI, US

A61M 16/00

12820423, 12820421

A breath detection system includes a conduit for gas delivery, e.g. oxygen. A pressure transducer is configured to: monitor a static gas pressure responsive to inhalation and exhalation, at a predetermined location of the conduit interior; and output a pressure signal related to the static gas pressure. A differentiator outputs a pressure change rate signal including a voltage level related to a time differential of the pressure signal. A comparator outputs a comparator signal including a comparator output voltage level related to a difference between the voltage level included in the pressure change rate signal and a detection threshold, where a predetermined comparator output voltage level range is indicative of the beginning of inhalation. A gas-providing apparatus provides a Mask signal feedback to temporarily reduce system sensitivity and also delivers a predetermined amount of the gas to the conduit in response to the comparator signal indicating that the voltage level is within the predetermined comparator output voltage level range.

2008011, May 15, 2008

Nov 10, 2006

11/595375

Michael P. Chekal - Brighton MI, US
Michael S. McClain - Ortonville MI, US
Dana G. Pelletier - Ortonville MI, US

A61M 16/00

12820426, 12820529

An oxygen delivery system includes first and second sieve beds configured to selectively receive a supply fluid and separate a substantially oxygen-rich fluid therefrom. A patient conduit having a patient outlet is in alternate selective fluid communication with the sieve beds. The system includes a breath-detection device in fluid communication with the patient conduit, configured to calculate a rate of breathing and to trigger, in response to a breath detection, an output of a predetermined volume of the substantially oxygen-rich fluid alternately from a respective one of the sieve beds. The system also includes a device configured to measure the output flow rate at predetermined intervals. The output, having a target flow rate and a flow rate, occurs during a respective dynamically adjusted patient oxygen delivery phase, which is dependent upon the target flow rate, the output flow rate, and/or the breathing rate.

2009018, Jul 30, 2009

Jan 30, 2008

12/011889

Michael P. Chekal - Brighton MI, US
Roger Horton - Longmont CO, US

A61M 16/00

12820325

A method of customizing delivery of an oxygen-enriched gas to a user includes calibrating an oxygen delivery device such that it is configured to deliver oxygen-enriched gas to the user in an amount specific to the user's predicted need, which need is correlated with the user's then-current activity. An apparatus for achieving this method is also disclosed herein.

2009021, Aug 27, 2009

Feb 21, 2008

12/070918

Loren M. Thompson - Lapeer MI, US
Michael P. Chekal - Brighton MI, US
Paul G. Dedecker - Clinton Twp. MI, US
James E. Nelson - North Branch MI, US

B01D 46/46

95 22

A method of determining the purity of oxygen present in an oxygen-enriched gas produced from an oxygen delivery system is disclosed. The oxygen delivery system includes at least one sieve bed having a nitrogen-adsorbing material disposed therein and configured to adsorb nitrogen from a feed gas introduced into the at least two sieve beds via a pressure-swing adsorption cycle. The method includes determining a quantity of nitrogen adsorbed by the nitrogen-adsorbing material by inferring an effective volume of the at least one sieve bed based on a pressure change of the at least one sieve bed.

2009021, Aug 27, 2009

Feb 23, 2009

12/390786

Michael P. Chekal - Brighton MI, US
Dana G. Pelletier - Ortonville MI, US

DELPHI TECHNOLOGIES, INC. - Troy MI

G08B 17/10
G01N 1/00

340632, 422119

A monitoring system for a portable oxygen generating system is provided. The system includes a system monitoring module that monitors an operational status of one or more components of the portable oxygen generating system. An alarm prioritization module determines an alarm priority level based on the operational status. An alarm system control module generates one or more alarm signals based on the alarm priority level.

2009021, Aug 27, 2009

Feb 22, 2008

12/070975

Michael P. Chekal - Brighton MI, US
Michael S. McClain - Ortonville MI, US
Dana G. Pelletier - Ortonville MI, US
Andrew M. Voto - Brighton MI, US

A62B 7/00
A61M 16/00

422120, 12820426

A method of generating an oxygen-enriched gas for a user via an oxygen generating system is disclosed herein. The oxygen generating system includes at least one sieve bed having a nitrogen-adsorption material disposed therein, the nitrogen-adsorption material being configured to adsorb nitrogen from a feed gas introduced thereto, thereby generating the oxygen-enriched gas therefrom. The at least one sieve bed has an internal gas pressure within a volume defined by the at least one sieve bed. The method includes measuring the internal sieve bed pressure, measuring an ambient atmospheric parameter, and detecting inhalation of the user. The method further includes selectively controlling, substantially in real time, delivery of the oxygen-enriched gas to the user based on at least one of the internal sieve bed gas pressure measurement, the ambient atmospheric parameter measurement, the inhalation detection, or combinations thereof.

2009022, Sep 17, 2009

Mar 13, 2008

12/047867

Michael S. McClain - Ortonville MI, US
Dana G. Pelletier - Ortonville MI, US
Michael P. Chekal - Brighton MI, US

B03C 3/00
B01D 53/047

95 96, 96108

A system for generating oxygen includes a compression means configured to compress a feed gas including at least nitrogen and oxygen, and at least one sieve bed configured to generate an oxygen-enriched gas from the compressed feed gas. The sieve bed(s), having an internal gas pressure ranging from about 1 psi to about 10 psi, include a housing and a nitrogen-adsorption material operatively disposed in the housing. The nitrogen-adsorption material is configured to adsorb at least nitrogen from the compressed feed gas during a pressure swing adsorption process, thereby generating an oxygen-enriched gas for a user.