Claims
- 1. A dispenser valve assembly for dispensing a viscous, sticky material from a container having a neck defining a discharge opening, said assembly comprising:
- a dispenser valve body;
- means on said body for engaging said neck;
- normally closed valve means disposed within said body and exclusive of said container for preventing discharge of said material from said container;
- a dispensing cavity located rigidly in said body, having an access opening through one end thereof to the exterior of said valve body and remote from said engaging means, for accessibly retaining for subsequent use an increment of material discharged from said container through said valve means;
- means in said body defining an elongated passage for said material and coupled at one end to said valve means and opening at its other end into said cavity;
- said access opening facing outwardly away from said one end of said passage means and said cavity being generally spheroidal in shape with a generally annular concave interior wall extending outwardly from said other end of said passage to said access opening;
- and said valve means including a stem portion, disposed in said passage and exposed from within said cavity, for enabling valve opening by manipulation of a tool inserted through said access opening into engagement with a facing end of said stem portion.
- 2. A dispenser valve assembly as defined in claim 1 wherein said valve means includes a valve stem having a frusto-conical valve disc intermediate the ends thereof adapted to sealingly engage a circular valve seat in said body, a spider for guidably supporting one end of said stem, and a means acting between said spider and said valve disc for biasing said valve means to the closed position.
- 3. A valve and reservoir mechanism for dispensing a small amount of a viscous sticky material from a container having a neck defining a discharge opening and depositing and retaining said viscous sticky material as a film on a surface to be wiped with a swab, comprising a tubular dispenser body, means on one end of said body for sealingly engaging said neck, a spring biased normally closed discharge valve means disposed exclusively within said body for controllably closing said container to prevent the discharge of material therefrom, a reservoir cavity located rigidly in said body at the end thereof opposite from said neck engaging means and including an interior surface extending outwardly from said discharge valve at an angle sufficient to cause said viscous fluid to adhere to and flow on said interior surface as it emerges from said valve, an access opening at the outer end of said body with said access opening extending into said reservoir cavity from the exterior of said body and adapted for receiving a swab insertable therein from the exterior of said body into contact with said material retained on the walls of said cavity after opening of said valve means, and an elongated stem projecting away from said valve means to dispose a free end exposed from within said cavity for enabling valve opening by manipulation of a tool inserted through said opening into engagement with said end of said stem.
- 4. A dispensing valve for use on a container of material to be dispensed incrementally, said valve comprising a valve body having an internally threaded bore in one end thereof for engagement with an externally threaded neck on said container, a central counterbore in said body extending from said threaded bore to an inwardly and forwardly sloping annular shoulder, said counterbore defining a rearwardly directed shoulder with said threaded bore, a spheroidal reservoir cavity defined in the other end of said body, said cavity opening into the end of said body and defining a chamber with annular concave walls, a passage opening between said annular shoulder in said counterbore and said spheroidal cavity, the wall of said passage cooperating with said sloping shoulder to define a valve seat, a valve stem slidably positioned in said body, said stem having an annular valve disc member defining a forwardly sloping valve surface for sealing engagement with said seat, a spider supported on said valve body between said rearwardly directed shoulder and an inserted container neck, said spider including a central guide sleeve for guidably receiving an inserted end of said valve stem, and a valve spring surrounding said sleeve and acting between said spider and said valve disc member for biasing said valve to seat said valve disc member on said valve seat, and said valve stem extending forwardly of said valve member within said passage and including a recess in its exposed end for engagement by a tool to open said valve against the biasing force of said valve spring to allow increments of the material to be discharged from the container into said reservoir cavity for subsequent use therefrom.
- 5. A dispenser valve assembly for dispensing viscous, sticky materials from a container having a neck defining a discharge opening and comprising:
- a dispenser valve body having a cylindrical hollow bore;
- means on one end of said body for engaging said neck;
- means on the other end of said body defining an annular cone segment of laterally flexible material and from its base longitudinally outward from said body and terminating in a cylindrical opening having a lateral innermarginal wall;
- a spherical ball located within said bore for sealing engagement with said marginal wall, the diameter of said ball being substantially the same as that of the longitudinally inward rim of said marginal wall;
- means within said bore for resiliently urging said ball against said marginal wall;
- said cone segment interiorly first tapering inwardly from said other end of said body at a given angle and then having a portion tapering inwardly more sharply toward said marginal wall;
- a plurality of webbed projections extending radially inwardly from the interior wall of said cone segment into guiding contact with said ball, including guide edges on said projections substantially parallel to the longitudinal axis of said cone segment adapted to allow said ball relatively uninhibited longitudinal movement but restraining said ball from lateral movement, and said projections being angularly spaced apart from each other a distance sufficient to allow said viscous fluid to flow therebetween and not be retained therein by clogging;
- and means defining a structurally re-enforcing rib circumscribing the interior of said opening at the exit from said more sharply defined portion and conformed to restrain exit of said ball through said opening.
RELATED APPLICATION
This is a continuation-in-part of concurrently pending application Ser. No. 939,126, filed Sept. 5, 1978, now abandoned.
US Referenced Citations (13)
Foreign Referenced Citations (3)
Number |
Date |
Country |
2304529 |
Aug 1974 |
DEX |
975191 |
Oct 1950 |
FRX |
260917 |
Nov 1926 |
GBX |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
939126 |
Sep 1978 |
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