Abstract: A beverage carbonator is disclosed. The carbonator has a carbonator outlet, a carbonator inlet, and a fluid flow path extending between the carbonator outlet and the carbonator inlet. A carbonation chamber has a carbonation chamber gas outlet fluidly coupled to the fluid flow path and a carbonation chamber fluid inlet. A liquid reservoir is positioned upstream from the carbonation chamber fluid inlet. A flow valve is movable between a reservoir-connected position and a gas-recirculation position. A pump is fluidly coupled to the fluid flow path downstream of the flow valve.

Abstract: A beverage carbonator includes a carbonation chamber having a carbonation source inlet, a fluid inlet, a gas outlet, and a carbonation source carrier. The carbonation source carrier is positioned to receive carbonation source deposited into the carbonation chamber through the carbonation source inlet. The carbonation source carrier and fluid inlet arranged to isolate carbonation source carried on the carbonation source carrier from liquid collected in the carbonation chamber through the fluid inlet until a predetermined volume of liquid is admitted into the carbonation chamber.

Abstract: A beverage carbonator includes a carbonation chamber having a carbonation source inlet, a fluid inlet, a gas outlet, and a carbonation source carrier. The carbonation source carrier is positioned to receive carbonation source deposited into the carbonation chamber through the carbonation source inlet. The carbonation source carrier and fluid inlet arranged to isolate carbonation source carried on the carbonation source carrier from liquid collected in the carbonation chamber through the fluid inlet until a predetermined volume of liquid is admitted into the carbonation chamber.

Abstract: A beverage carbonator includes a carbonation chamber having a carbonation source inlet, a fluid inlet, a gas outlet, and a carbonation source carrier. The carbonation source carrier is positioned to receive carbonation source deposited into the carbonation chamber through the carbonation source inlet. The carbonation source carrier and fluid inlet arranged to isolate carbonation source carried on the carbonation source carrier from liquid collected in the carbonation chamber through the fluid inlet until a predetermined volume of liquid is admitted into the carbonation chamber.

Abstract: A portable device including a housing comprising a first opening and a second opening and a resuscitator bag. The resuscitator bag is disposed at least partially within the housing and includes an air inlet supported at the first opening of the housing, an air outlet supported at the second opening of the housing, and a self-inflating bag. The portable device also includes a double-sided compression mechanism disposed within the housing. The double sided-compression mechanism includes a pair of arms at least partially surrounding the self-inflating bag. The pair or arms are configured to move towards each other to compress the self-inflating bag to provide positive pressure ventilation via the air outlet and to move away from each other to enable re-inflation of the self-inflating bag via the air inlet; and, a motor coupled to the pair of arms for moving the pair of arms towards and away from each other.

Abstract: A lightweight caster is described that is resistant to ingress of debris into a caster bearing. The caster has a monolithic fork having an annular wheel-supporting portion and a chair-supporting portion. The wheel-supporting portion has a pass-through aperture for receiving a retainer. A rotational bearing is supported on the wheel-supporting portion, which supports a wheel rim such that the wheel rotates in the vertical plane. The rim has a pass-through aperture aligned with the pass-through aperture of the fork, and a ring at an inside edge of the bearing to retain the bearing between the rim and the fork and to inhibit debris from contacting the bearing. A retainer retains the rim on the fork and has an aperture aligned with the fork pass-through aperture. The retainer also has a bearing-retaining portion at an outside edge of the bearing to retain the bearing and to inhibit debris from migrating inwardly.

Abstract: A lightweight caster is described that is resistant to ingress of debris into a caster bearing. The caster has a monolithic fork having an annular wheel-supporting portion and a chair-supporting portion. The wheel-supporting portion has a pass-through aperture for receiving a retainer. A rotational bearing is supported on the wheel-supporting portion, which supports a wheel rim such that the wheel rotates in the vertical plane. The rim has a pass-through aperture aligned with the pass-through aperture of the fork, and a ring at an inside edge of the bearing to retain the bearing between the rim and the fork and to inhibit debris from contacting the bearing. A retainer retains the rim on the fork and has an aperture aligned with the fork pass-through aperture. The retainer also has a bearing-retaining portion at an outside edge of the bearing to retain the bearing and to inhibit debris from migrating inwardly.