Abstract: A liquid atomizer includes a housing having a gas flow passage therein and a constriction in the passage, a flow restrictor bearing against the constriction at the downstream side thereof, and a carrier member located upstream of the constriction. The carrier has an axial extension thereon projecting through the constriction, and the flow restrictor is spring mounted on this extension. Thus, any interference with the desired uniform liquid atomization from the passage is completely avoided.

Abstract: A housing includes a plastic member having a central opening, and a reinforcing element of wholly rigid and imperforate material in the form of a hollow sleeve imbedded within the member. This sleeve is coincident with the opening and has an outer end flush with an outer end of the member. A first inner wall portion of the sleeve adjacent such one end has a diameter equal to the diameter of the central opening, and this first inner wall portion being threaded for engagement with a threaded object to be connected to the housing. The sleeve has a second inner wall portion of a diameter greater than the diameter of the opening so as to define an annular space which is occupied by a portion of the plastic member.