US 5,337,926 A · Spray pump package employing multiple orifices for dispensing liquid in different spray patterns with automatically adjusted optimized pump stroke for each pattern

Abstract

A spray pump package capable of delivering two or more different predetermined spray patterns or spray characteristics through two or more different spray orifices, but at a liquid application amount per unit of area being treated which is optimum for the particular spray orifice selected rather than a compromise between two extremes. The predetermined spray patterns from which the end user may select may differ by any desired spray pattern or characteristic, including but not limited to: the cone angle of the spray; the width of the spray pattern; the average size of the particles in the spray; the amount of particle size deviation from the average; etc. The packages are provided with structure for automatically adjusting the maximum available pump stroke so as to optimize the maximum amount of product which can be delivered on each complete pump stroke for whichever orifice is selected by the end user. In a particularly preferred embodiment, the package employs a positive displacement pump which is self priming regardless of stroke length.

Claims24

Dependent claims

A spray pump package having a liquid pump that can be operated by a manual stroke and which will dispense a different maximum predetermined volume of liquid through each of at least two different spray orifices that exhibit different spray patterns and which can be manually selected by the user of the package, said package comprising:

(a) a container for housing said liquid;
(b) a liquid pump including an actuator secured to said container;
(c) at least two distinct spray orifices secured to said container so that either spray orifice can be placed in fluid communication with said liquid pump;
(d) spray orifice selector means movably secured to said container to enable the user to manually place said liquid pump in fluid communication with either of said spray orifices;
and
(e) means for automatically changing the maximum stroke available to said liquid pump whenever the user employs said spray orifice selector means to redirect fluid communication of said liquid pump from one of said spray orifices to an other of said spray orifices.

3 more elements

(a) a container for housing said liquid;
(b) a positive displacement, self-priming liquid pump including a push button actuator which must be depressed to stroke said pump secured to said container;
(c) at least two distinct spray orifices secured to said container so that any of said spray orifices can be placed in fluid communication with said liquid pump;
(d) spray orifice selector means movably secured to said container to enable the user to manually place said liquid pump in fluid communication with any of said spray orifices;
and
(e) means for automatically changing the maximum stroke available to said liquid pump whenever the user employs said spray orifice selector means to redirect fluid communication of said liquid pump from one of said spray orifices to any other of said spray orifices.

3 more elements

Dependencies are inferred from the claim text.

Spray pump package employing multiple orifices for dispensing liquid in different spray patterns with automatically adjusted optimized pump stroke for each pattern

Life of this patent

Spray pump package employing multiple orifices for dispensing liquid in different spray patterns with automatically adjusted optimized pump stroke for each pattern

Life of this patent

Abstract

Claims24