초록 ▼

A nozzle for a container including an internal ball check valve along with an o-ring sealing structure and angled insertion limitation stops to cooperate with a receptacle to permit the insertion of the nozzle and container only a predetermined distance, while providing for such insertion to effect

A nozzle for a container including an internal ball check valve along with an o-ring sealing structure and angled insertion limitation stops to cooperate with a receptacle to permit the insertion of the nozzle and container only a predetermined distance, while providing for such insertion to effect an opening of the ball check valve, and appropriate sealing o-rings are provided to prevent leakage of the liquid past the nozzle.

대표청구항 ▼

[ What is claimed is:] [1.] The combination of a nozzle and a receptacle for at least the outer end of said nozzle, with said nozzle being attachable to an externally threaded fitting on a dispensing container and being received into a cylindrical said receptacle having a central axis and a predeter

[ What is claimed is:] [1.] The combination of a nozzle and a receptacle for at least the outer end of said nozzle, with said nozzle being attachable to an externally threaded fitting on a dispensing container and being received into a cylindrical said receptacle having a central axis and a predetermined internal radius, said nozzle comprisingan internally threaded cylindrical first portion of generally cylindrical configuration having a central axis and being of a predetermined radius, whereby such first portion may be threadably received onto a corresponding externally threaded fitting on a container;a second hollow cylindrical portion extending coaxially with and outwardly from said first portion and toward said outer end, with an inner part thereof proximal said nozzle first portion and an outer part distal said nozzle first portion, said nozzle second portion having a predetermined radius smaller than said first radius and smaller than said cylindrical receptacle internal radius;said outer part of said second portion having an o-ring groove;an o-ring having a round cross section and being received in said groove and extending radially outwardly of said nozzle second portion a distance greater than the radial distance of the outer surface of said second portion from said central axis and greater than the radial distance of the inner surface of said receptacle from said central axis, whereby insertion of the nozzle second portion into said receptacle provides a resiliently sealing engagement between the o-ring and the inner surface of the receptacle;a plurality of discrete stops spaced about and extending angularly outwardly from said outer surface of said second portion and angled outwardly in a direction away from said distal end a radial distance greater than said internal radius of said receptacle, such that said angular stops not only direct and center insertion of said nozzle second portion into said receptacle but also prevent insertion of said nozzle portion beyond a predetermined insertion distance.