초록 ▼

A three-piece nozzle is disclosed, for fitment to a hand actuated liquid pump having a barrel portion with a bore therethrough for passage of liquid. The nozzle features an integrally formed nozzle cap which fits around the end portion of the barrel. Enclosed within the nozzle cap is an integrally f

A three-piece nozzle is disclosed, for fitment to a hand actuated liquid pump having a barrel portion with a bore therethrough for passage of liquid. The nozzle features an integrally formed nozzle cap which fits around the end portion of the barrel. Enclosed within the nozzle cap is an integrally formed nozzle seal which forms a peripheral liquid-tight seal around the barrel between the nozzle cap and the barrel. Also provided is an integrally formed check valve which is movably positioned at the mouth of the bore and which is biased towards the mouth of the bore to form a liquid-tight bore seal. The bias is overcome, to open the liquid-tight bore seal, upon actuation of the pump which provides liquid pressure in the bore to act against the check valve.

대표청구항 ▼

A nozzle for fitment to hand actuated liquid pumps having a barrel portion with a bore therethrough for passage of liquid, said nozzle comprising: a. an integrally formed nozzle cap which includes: i. an end wall having an aperture through which liquid from said bore is dispensed, and ii. a skirt po

A nozzle for fitment to hand actuated liquid pumps having a barrel portion with a bore therethrough for passage of liquid, said nozzle comprising: a. an integrally formed nozzle cap which includes: i. an end wall having an aperture through which liquid from said bore is dispensed, and ii. a skirt portion having mounting means for mounting said nozzle cap around the end portion of said barrel; b. an integrally formed nozzle seal means attached to said barrel and enclosed by said nozzle cap, said nozzle seal means providing a peripheral liquid-tight seal around said barrel between said nozzle cap and said barrel, and said nozzle seal means having stop means displaced outwardly from the end of said barrel; and c. an integrally formed check valve means movably positioned at the mouth of said bore, said check valve means having, i. a seal portion which selectively forms a liquid-tight bore seal with said end portion of said barrel to close off the flow of liquid through said bore, and ii. a spring portion in operative relationship with said stop means whereby said spring portion biases said seal portion to form its said liquid-tight bore seal, but said spring portion having a biasing strength sufficiently low to allow liquid pressure in said bore, developed by actuation of said pump, to move said check valve away from said barrel end portion so that said liquid-tight bore seal is opened and liquid in said bore can pass to said aperture in nozzle cap.