Abstract: A connector assembly for releasably securing a reservoir to a spray gun includes a spout 119 on a lid 114 of the reservoir received in a socket of an inlet adaptor 105 on the spray gun, and a locking ring 144 located on the inlet adaptor 105 that screws onto the lid 114 to secure the lid 114 to the adaptor 105.

Abstract: An adsorbent vessel comprising adsorbent material within the vessel interior positioned above at least one layer of support media, and a perforated baffle resting on the support media and not attached to the vessel shell whereby gas flow into the vessel from an inlet nozzle and a lengthwise oriented plenum is more evenly distributed for flow through the adsorbent material.

Abstract: This invention comprises an adsorption process for the removal of at least N2O from a feed gas stream that also contains nitrogen and possibly CO2 and water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high N2O/N2 separation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.

Abstract: For PSA or TSA prepurifiers, the temperature rise on adsorption is particularly troublesome when the temperature rise reaches the end of the bed at the end of the adsorption step. This results in an increase in the CO2 and N2O concentration at the end of the cycle. Addition of a regenerator in the middle of the adsorption layer will reduce the temperature rise at the end of the bed and thus enhance the performance of the bed.