Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: An apparatus and method for providing help information on a display device associated with a power driven wheelchair is provided. In one embodiment, the method includes: a) displaying screen content displayed on the display device during operation or support of the power driven wheelchair, b) detecting selective activation of a first input device, c) in response to detection of the first input device activation, selecting help information content from a collection of help information, the selected help information content being contextually related to the screen content displayed on the display device, and d) displaying the contextually-related help information content on the display device. In one embodiment, the apparatus includes: a display device, a first input device, and a microcontroller in operative communication with the display device and the first input device.

Abstract: An apparatus and method for providing help information on a display device associated with a power driven wheelchair is provided. In one embodiment, the method includes: a) displaying screen content displayed on the display device during operation or support of the power driven wheelchair, b) detecting selective activation of a first input device, c) in response to detection of the first input device activation, selecting help information content from a collection of help information, the selected help information content being contextually related to the screen content displayed on the display device, and d) displaying the contextually-related help information content on the display device. In one embodiment, the apparatus includes: a display device, a first input device, and a microcontroller in operative communication with the display device and the first input device.

Abstract: An apparatus and method for providing help information on a display device associated with a power driven wheelchair is provided. In one embodiment, the method includes: a) displaying screen content displayed on the display device during operation or support of the power driven wheelchair, b) detecting selective activation of a first input device, c) in response to detection of the first input device activation, selecting help information content from a collection of help information, the selected help information content being contextually related to the screen content displayed on the display device, and d) displaying the contextually-related help information content on the display device. In one embodiment, the apparatus includes: a display device, a first input device, and a microcontroller in operative communication with the display device and the first input device.

Abstract: Various equipment and methods associated with providing a concentrated product gas are provided. In one embodiment, the equipment includes an input device first and second sieve tanks, a variable restrictor, and a controller. In one embodiment, the method includes: a) selecting a desired output setting for the concentrated product gas from a plurality of output settings, b) separating one or more adsorbable components from a pressurized source gaseous mixture via first and second sieve tanks in alternating and opposing pressurization and purging cycles to form the concentrated product gas, and c) selectively controlling a variable restrictor based at least in part on the desired output setting to selectively provide flow between the first and second sieve tanks such that the flow for at least one output setting is different from the flow for at least one other output setting in relation to corresponding pressurization cycles.

Abstract: An apparatus and method for providing help information on a display device associated with a power driven wheelchair is provided. In one embodiment, the method includes: a) displaying screen content displayed on the display device during operation or support of the power driven wheelchair, b) detecting selective activation of a first input device, c) in response to detection of the first input device activation, selecting help information content from a collection of help information, the selected help information content being contextually related to the screen content displayed on the display device, and d) displaying the contextually-related help information content on the display device. In one embodiment, the apparatus includes: a display device, a first input device, and a microcontroller in operative communication with the display device and the first input device.