Berthoud S.a.

Societe Berthoud S.a.

Robert Nissels

A rotatable nozzle assembly for sprayers having a fluid reservoir and spray head wherein the nozzle assembly includes a spray control barrel which receives liquid from the reservoir and which includes a number of annular spaced orifices. The barrel is rotatably mounted in eccentric relationship within a tube portion of the spray head which is closed by a cap having a discharge opening therein so that the orifices in the barrel may be selectively aligned with the discharge opening in the cap to thereby vary the spray pattern discharging from the sprayer.

Rotatable nozzle assembly for sprayers

A connecting rod for reciprocally driving a piston within a cylinder wherein the piston rod includes upper and lower portions which are connected by an area of thinner dimension which is also yieldable so as to permit the lower end of the connecting rod to assume varying angular orientations with respect to the upper end thereof and wherein the lower end of the rod includes a bearing surface which is cooperatively received so as to be driven by the end of an operating lever by way of which motion is imparted to the connecting rod.

Connecting rod assemblies intended for the reciprocating driving of a

A piston pump having a flexible rolling membrane which seals the piston from the cylinder wherein the piston is designed to include an upper portion which is spaced inwardly from the cylinder wall so as to form a cavity which communicates through channels and seals carried by the lower portion of the piston in such a manner that the lower portion of the flexible membrane is depressed between the upper portion of the piston face and the cylinder walls during an intake stroke as the cavity is subjected to a decreased pressure and which decreased pressure is removed from the membrane during a discharge stroke of the piston. In the preferred embodiment, the membrane is secured to the upper surface of the piston by a cup-shaped element which protects the membrane from materials within the cylinder.

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Vallieres, France

Robert Nissels