Dispenser

• US 5,873,268 A
• Filed: 08/28/1997
• Issued: 02/23/1999
• Est. Priority Date: 05/06/1996
• Status: Expired due to Term

• Current Assignee: Ecolab USA Incorporated (Ecolab, Inc.)
• Original Assignee: Ecolab, Inc.
• Inventors: Boche, Daniel K., Tolliver-Rogers, Loleta T., Howes, Ronald Bruce, Hoerning, Douglas Sherwin, Spriggs, John Ross
• Primary Examiner(s): Coe, Philip R.
• Application Number:
  US08/919,851
• Time in Patent Office: 544 Days
• Field of Search: 68/17 R, 134/93, 422/263, 422/266, 239/310, 137/268, 116/202, 116/227
• US Class Current: 68/17.00R
• CPC Class Codes: A47L 15/4418 in the form of liquids A47L15/4409, A47L15/4436, A47L15/4445 take precedence
• CPC Class Codes: A47L 15/4436 in the form of a detergent solution made by gradually dissolving a powder detergent cake or a solid detergent block
• CPC Class Codes: D06F 39/022 in a liquid state D06F39/024 takes precedence
• CPC Class Codes: Y10T 137/4891 With holder for solid, flaky or pulverized material to be dissolved or entrained

Abstract

A dispenser 100 for dispensing a chemical product that is dissolved by diluent. The dispenser includes a package 170 having a diaphragm, or fingered collar 180 attached to its opening. The diaphragm 180 has a plurality of flexible members or flexible fingers 185. The dispenser may utilize an injection manifold 109 that is sized and configured to be positioned on a washing machine top proximate the gap between the washing machine'"'"'s top and lid. Still further, the invention includes a low level chemical product indicator. The indicator includes a focused light source 98a and 99a. The focused light source is a high intensity light emitting diode having a viewing angle of less than 6° and an intensity of above 10,000 mcd. The dispenser also includes an apparatus and method in which a dispensing time of a dispenser is dynamically varied in response to diluent temperature during operation of the dispenser.

Claims

1. A dispenser for dispensing a chemical product that is dissolved by a diluent, comprising:

(a) a housing for receiving a solid chemical product material, said housing having an inner cavity, open top and an outlet;

(b) means for spraying a diluent onto the solid material to dissolve the chemical product;

(c) a package for supplying the chemical product, said package comprising;

(i) a container having an inner cavity and an open end including a peripheral wall defining an opening into the container;

(ii) a diaphragm mounted to the peripheral wall and traversing a portion of the opening, the diaphragm having a plurality of flexible members extending inward;

(iii) said flexible members being made of a semi-rigid material and sized to inhibit removal of the chemical product when in a first position; and

(iv) said flexible members adapted to be displaced away from the center of the container to a second position, wherein the flexible members no longer inhibit removal of the chemical product; and

(d) a flange member mounted on the housing proximate the open top, said flange member sized and configured for moving the flexible members from the first position to the second position as the package is placed over the flange, wherein the chemical product may then fall from the container into the cavity of the housing.

2. The dispenser of claim 1, wherein the package is an integral portion of the dispenser when inserted on the flange.

3. The dispenser of claim 1 wherein the package is generally cylindrical.

4. The dispenser of claim 3, wherein said package has ribs formed in its outer surface for easier handling.

5. The dispenser of claim 3, wherein said flange is circular and further comprises an outer arcuate ring, the outer ring mounted on said flange and generally surrounds a portion of said flange and sized larger than the package so as to guide the package in position over the flange.

6. The dispenser of claim 1, further comprising a chemical product injection manifold for use with a washing machine of the type having an opening in its top and a lid, the lid being sized to be smaller than the opening so as to form gap between the top and the lid, said manifold comprising:

(a) a fitting adapted to receive a hose from the dispenser;

(b) a housing having an inner cavity, said cavity in fluid communication with said fitting, said housing having a bottom;

(c) means for positioning said manifold on the washing machine top proximate the gap between the top and lid, said positioning means operatively connected to said housing; and

(d) an outlet in fluid communication with said cavity, said outlet generally elongate and having a width less than the width of the gap.

7. The dispenser of claim 1, further comprising a chemical product level indicator, comprising:

(a) a focused light source positioned on a wall of said dispenser housing at a location commensurate with a level of solid material to be detected; and

(b) a view port located on an opposite wall of said dispenser housing, in general alignment with said focused light source, wherein said focused light is aimed at said view port and when chemical product level is above a line between the view port and the light source, the light is blocked from the view port and when chemical product level is lowered, the focused light source shines on the view port and can easily be seen by an operator.

8. The dispenser of claim 1, further comprising:

(a) the dispenser receiving a diluent and outputting a use dilution comprising a chemical product diluted by the diluent, wherein a dispensing rate of chemical product for the dispenser varies with a temperature of the diluent; and

(b) a temperature sensor sensing the temperature of the diluent and outputting a temperature signal representative thereof; and

(c) a controller, coupled to the dispenser and the temperature sensor, the controller operating the dispenser to dispense an amount of use dilution having a predetermined amount of chemical product, wherein the controller dynamically varies a dispensing time of the dispenser while the dispenser is dispensing use dilution in response to the temperature signal to deliver the predetermined amount of chemical product.