Abstract: A product pump for pumping separated product gas from an oxygen concentrator which produces oxygen-rich product gas by utilizing a vacuum swing adsorption (VSA) process. The oxygen concentrator comprises a cartridge containing an adsorbent material for separating the product gas from ambient air, a vacuum pump which provides a vacuum source, a valve for selectively connecting the vacuum pump to the cartridge and product pump, and a reservoir. The product pump comprises a pumping chamber having a product gas inlet and a product gas outlet, a piston movable in the chamber, a vacuum inlet in the chamber on an opposite side of the piston from the product gas inlet and outlet for providing a vacuum to cause the piston to draw product gas through the product gas inlet into the chamber, and a spring for providing a spring force to force the product gas out the product gas outlet.
Type:
Application
Filed:
November 10, 2006
Publication date:
March 15, 2007
Applicant:
Vbox, Incorporated
Inventors:
Theodore Jagger, Nicholas Van Brunt, John Kivisto, Perry Lonnes
Abstract: A product pump for pumping separated product gas from an oxygen concentrator which produces oxygen-rich product gas by utilizing a vacuum swing adsorption (VSA) process. The oxygen concentrator comprises a cartridge containing an adsorbent material for separating the product gas from ambient air, a vacuum pump which provides a vacuum source, a valve for selectively connecting the vacuum pump to the cartridge and product pump, and a reservoir. The product pump comprises a pumping chamber having a product gas inlet and a product gas outlet, a piston movable in the chamber, a vacuum inlet in the chamber on an opposite side of the piston from the product gas inlet and outlet for providing a vacuum to cause the piston to draw product gas through the product gas inlet into the chamber, and a spring for providing a spring force to force the product gas out the product gas outlet.
Type:
Grant
Filed:
February 9, 2005
Date of Patent:
February 6, 2007
Assignee:
VBOX, Incorporated
Inventors:
Theodore W. Jagger, Nicholas P. Van Brunt, John A. Kivisto, Perry B. Lonnes
Abstract: An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen separator for ambulatory use.
Type:
Grant
Filed:
February 9, 2005
Date of Patent:
October 17, 2006
Assignee:
Vbox, Incorporated
Inventors:
Theodore W. Jagger, Nicholas P. Van Brunt, John A. Kivisto, Perry B. Lonnes
Abstract: An oxygen separator for separating oxygen from ambient air utilizing a vacuum swing adsorption process has a mass of less than 2.3 kg. A carrier is mountable on a person to support the oxygen separator for ambulatory use.
Type:
Application
Filed:
April 5, 2006
Publication date:
August 24, 2006
Applicant:
Vbox, Incorporated
Inventors:
Theodore Jagger, Nicholas Van Brunt, John Kivisto, Perry Lonnes
Abstract: The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a molecular sieve material contained in the separation chamber. A first pumping chamber is connected to the first port. A first valve regulates a flow of the gas mixture between the first port and the first pumping chamber. A first piston is located in the first pumping chamber. A second pumping chamber is connected to the second port. A second valve regulates a flow of the product gas between the second port and the second pumping chamber. A second piston is located in the second pumping chamber. A drive system coordinates operation of the first and second pistons and the first and second valves in a cycle including a pressurization stage, a gas shift stage, and a depressurization stage.
Type:
Grant
Filed:
September 16, 2002
Date of Patent:
November 4, 2003
Assignee:
VBOX, Incorporated
Inventors:
Theodore W. Jagger, Alexander E. Van Brunt, Nicholas P. Van Brunt
Abstract: The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a molecular sieve material contained in the separation chamber. A first pumping chamber is connected to the first port. A first valve regulates a flow of the gas mixture between the first port and the first pumping chamber. A first piston is located in the first pumping chamber. A second pumping chamber is connected to the second port. A second valve regulates a flow of the product gas between the second port and the second pumping chamber. A second piston is located in the second pumping chamber. A drive system coordinates operation of the first and second pistons and the first and second valves in a cycle including a pressurization stage, a gas shift stage, and a depressurization stage.
Type:
Grant
Filed:
January 10, 2002
Date of Patent:
January 28, 2003
Assignee:
VBOX, Incorporated
Inventors:
Theodore W. Jagger, Alexander E. Van Brunt, Nicholas P. Van Brunt
Abstract: The present invention is a gas separator for separating a gas mixture into a product gas. The gas separator has an adsorbent bed including a separation chamber with first and second ports and a molecular sieve material contained in the separation chamber. A first pumping chamber is connected to the first port. A first valve regulates a flow of the gas mixture between the first port and the first pumping chamber. A first piston is located in the first pumping chamber. A second pumping chamber is connected to the second port. A second valve regulates a flow of the product gas between the second port and the second pumping chamber. A second piston is located in the second pumping chamber. A drive system coordinates operation of the first and second pistons and the first and second valves in a cycle including a pressurization stage, a gas shift stage, and a depressurization stage.
Type:
Application
Filed:
September 16, 2002
Publication date:
January 16, 2003
Applicant:
VBOX, Incorporated
Inventors:
Theodore W. Jagger, Alexander E. Van Brunt, Nicholas P. Van Brunt