An assembly is provided of a known high speed envelope blank cutting unit with a known envelope folding unit and an envelope conveyor to transport a continuous stream of envelope blanks from the blank cutting unit to the folding unit in a predetermined timed sequence and in position for proper entry into the folding unit. The conveyor includes predetermined transport segments positioned, relative to one another, to accommodate necessary path direction changes, and a stacking or shingler segment....

A two stage pressure build-up discharge valve assembly is mounted within the end of the discharge nozzle surrounded by a nozzle cap of a trigger actuated pump sprayer, and includes a spring biased discharge valve element having a high pressure throttle valve fixed to a second stage low pressure valve piston to provide a predetermined pressure threshold which when exceeded by fluid pressure generated by the pumping force applied during trigger actuation unseats immediately permitting the fluid pr...

An apparatus for electrostatic atomization of liquids, particularly fuel, has a nozzle, which has a nozzle body of electrically conductive material, connected to ground potential, with a nozzle opening for the emergence of a volume of liquid under pressure and has an electrode in the nozzle body, coaxially opposite the nozzle opening, which electrode is at a high-voltage potential. To avoid a corona discharge of the electrically charged liquid volume emerging from the nozzle opening, which would...

Spray apparatus for mixing, atomizing and spraying foam forming components has a hollow wand of extensive length that is adapted to be connected at one end to a conventional mixhead and has mounted therein a static mixing element that extends the length of the wand. A nozzle having a singular central orifice through its tip is mounted on the distal end of the wand and houses a floating core. The core has a convex end facing the orifice and is contactible thereabout with an interior side of the n...

A spray actuator which has an inlet which communicates with a discharge orifice outlet via a passageway and a discharge cavity. The discharge cavity accommodates a central post therein which supports a plurality of axial fins that may be each provided with stop shoulder. An insert member, carrying a discharge orifice, is received within the discharge cavity and engages with the support fins and the stop shoulders. The insert member is provided with an annular lip which has an interference fit wi...

This relates to an injection nozzle which includes a nozzle body having at one end thereof an inlet channel which is connected to an annular spinning chamber which is connected to the inlet channel by means of spin channels directed tangentially into the spinning chamber, and an exhaust orifice. The exhaust orifice is formed in a closure plate which cooperates with a core of the nozzle body disposed within the general confines of the annular spinning chamber to define a very narrow gap through w...

A spray head for the nebulization of fluid under pressure having a swirl chamber with a discharge orifice and a pair of passages operative to conduct fluid to said chamber, the chamber including two wall portions symetrically interposed between the passages and the discharge orifice, the configuration and disposition of said wall wall portions cooperatively to produce a swirling of fluid about the discharge orifice and effect nebulization of discharging fluid over a wide range of fluid pressures...

A spring-loaded double-ended check valve assembly is provided for use in the outlet chamber of a dispenser for spraying liquids. The entire assembly, including both ends and the spring, is made in one-piece and is easily moldable from plastic material thus effecting ease of manufacture and assembly into the sprayer, reduced labor and material costs and affording the reliability of a unitary member.

A gas-atomizing nozzle composed of a truncated cone-shaped main body having semi-spiral grooves formed symmetrically on the tapered surface of the truncated cone body and a conical cover or sleeve covering the grooved surface for providing semi-spiral passageways of gas, said truncated cone body having at the center a passageway for a liquid to be atomized and said semi-spiral grooves having such configuration that the liquid discharged through the liquid passageway is finely atomized at the foc...

An actuator for a container that dispenses liquids containing a suspension of particulate material that keeps itself from clogging comprises a mechanical break-up chamber to emit a fine spray and includes a continuous emission from an orifice which keeps the chamber free from accumulation of solid particles.