Abstract: A housing for a rotary adsorption machine includes a peripheral section configured to circumferentially surround a rotor and define a plurality of zones through which the rotor can rotate, including an adsorption zone, a desorption zone, and a regeneration zone. The housing may include two or more sector plate assemblies that define the plurality of zones. The housing may include a plurality of ducts that define passageways into and out of the plurality of zones, and the peripheral section may connects each duct inlets with its duct outlet. The housing also includes structural reinforcements and thermal expansion elements. The structural reinforcements that support the rotor, balance internal pressures in the housing, and/or dampen or eliminate tilting or deflections in the housing. The thermal expansion elements that allow the two or more sector plate assemblies to create seals between the plurality of zones.

Abstract: A housing for a rotary adsorption machine includes a peripheral section configured to circumferentially surround a rotor and define a plurality of zones through which the rotor can rotate, including an adsorption zone, a desorption zone, and a regeneration zone. The housing may include two or more sector plate assemblies that define the plurality of zones. The housing may include a plurality of ducts that define passageways into and out of the plurality of zones, and the peripheral section may connects each duct inlets with its duct outlet. The housing also includes structural reinforcements and thermal expansion elements. The structural reinforcements that support the rotor, balance internal pressures in the housing, and/or dampen or eliminate titling or deflections in the housing. The thermal expansion elements that allow the two or more sector plate assemblies to create seals between the plurality of zones.

Abstract: A tracing board assembly includes a transparent sheet having a first surface and a second surface. The first surface including a plurality of hooks providing hook-and-loop adhesion. A frame may be secured to a perimeter of the transparent sheet. An original image abuts the second surface of the transparent sheet and visible through the transparent sheet. The original image may include alphanumeric characters corresponding to colors of yarn. A pen having a tubular body has yarn extending through the tubular body. The pen can be used to adhere the yarn to selected areas of the transparent sheet using the original image as a guide.