Solid cast detergent dispenser with insert for holding noncompatible chemical

• US 4,571,327 A
• Filed: 03/22/1984
• Issued: 02/18/1986
• Est. Priority Date: 03/22/1984
• Status: Expired due to Term

• Current Assignee: Ecolab, Inc.
• Original Assignee: Ecolab, Inc.
• Inventors: Copeland, James L., Johnson, Richard H., Hennemann, Thomas L. Jr., Larson, Spencer B.
• Primary Examiner(s): Lacey, David L.
• Assistant Examiner(s): Ledbetter, Jr., Titus B.
• Application Number:
  US06/592,604
• Time in Patent Office: 698 Days
• Field of Search: 422/255, 422/261, 422/263, 422/264, 422/266, 422/267, 422/268, 422/236, 222/651, 222/652, 222/67, 239/57, 239/60
• US Class Current: 422/263
• 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: B01F 21/22 using additional holders in conduits, containers or pools for keeping the solid material in place, e.g. supports or receptacles
• CPC Class Codes: B01F 25/25 Mixing by jets impinging against collision plates

Abstract

A dispenser (10) for a detergent (13) is disclosed. A housing (10) defining an inner cavity (12) holds the detergent (13). The cavity (12) has a circular opening. An insert (14) of a substance not chemically compatible with the detergent (13) is retained in the opening of the inner cavity (12). The insert (14) is retained by retaining ring (20) and a cover (26). In a preferred embodiment, the retaining ring (20) defines an inner aperture (21a) and has a plurality of generally upwardly extending resilient fingers (24) cooperatively connected to the retaining ring (20) proximate the inner aperture (21b). A cover (26) is cooperatively connected to and secured by the fingers (24), wherein said insert (14) is placed over said fingers (24) and said cover (26) over said insert (14), whereby said fingers (24) and said cover (26) control the dissolving of the insert (14 ) by controlling the surface area of the insert (14) exposed to the detergent solution. A spray forming nozzle (15) is mounted to and extends into the cavity (12) through the opening for directing a pressurized spray of liquid at the detergent. The hydraulic action of the nozzle directed spray (16) dissolves a portion of the detergent (13), forming a detergent solution which passes by gravity over the insert (14) and dissolves a portion of the insert (14), and the detergent solution and dissolved insert are discharged through the opening.

Claims

1. A dispenser for a detergent, comprising:

(a) a housing defining an inner cavity, said housing having a funnel section leading downwardly to a collar at a lower end thereof and having a circular opening, a body of liquid soluble detergent located within said inner cavity and positioned above and spaced apart from said collar;

(b) a liquid soluable insert, located within said collar, of a substance not chemically compatible with the detergent, said insert having an inner opening;

(c) means for retaining said insert in said circular opening, said retaining means having an aperture; and

(d) spray-forming nozzle means mounted to extend into said cavity through said circular opening, said aperture and said inner opening, whereby a pressurized spray of liquid is directed towards the detergent, such that hydraulic action of said nozzle directed spray dissolves a portion of the detergent, and forms a detergent solution which passes by gravity over said insert and dissolves a portion of said insert, and whereby the detergent solution and dissolved insert are discharged out of said circular opening through said aperture.

2. The dispenser of claim 1, wherein said retaining means is made from plastic.

3. The dispenser of claim 1, wherein said retaining means comprises:

(a) a retaining ring, said ring engages said opening and supports said insert in said opening, said ring defining said aperture;

(b) a plurality of generally upwardly extending resilient fingers cooperatively connected to said retaining ring and proximate said aperture; and

(c) a cover having an inner aperture cooperatively connected to and secured by said fingers, wherein said insert is placed over said fingers and said cover over said insert, whereby said fingers and said cover control the dissolving of said insert by controlling the surface area of said insert exposed to the detergent solution.

4. The dispenser of claim 3, wherein said fingers comprise:

(a) a flexible upright member having a top end and bottom end, said bottom end cooperatively connected to said retaining ring; and

(b) a hook portion cooperatively connected to said top end having a top surface extending generally downward and outward.

5. The dispenser of claim 3, wherein said retaining ring further comprises a plurality of locking members and a flange both cooperatively connected to said ring, whereby said retaining ring is locked in position in said opening by said locking members and said flange.

6. The dispenser of claim 3, wherein said cover has a top surface cooperatively connected to side walls and said top surface has said inner aperture.

7. The dispenser of claim 3, wherein said cover has an inner ring cooperatively connected to an outer ring by a plurality of ribs, said cover being in a general shape of a disc.

8. A dispenser for a detergent, comprising:

(a) a housing defining an inner cavity, said housing having a funnel section leading downwardly to a collar at a lower end thereof and having a circular opening, a body of liquid soluble detergent located within said inner cavity and positioned above and spaced apart from said collar;

(b) a liquid soluable insert, located within said collar, of a substance not chemically compatible with the detergent, said insert having an inner opening;

(c) means for retaining said insert in said circular opening of said inner cavity, said retaining means comprising;

(i) a retaining ring, said ring engages said opening and supports said insert in said opening, said ring defining an inner aperture;

(ii) a plurality of generally upwardly extending resilient fingers cooperatively connected to said retaining ring and proximate said inner aperture;

(iii) a cover having an inner aperture cooperatively connected to and secured by said fingers, wherein said insert is placed over said fingers and said cover over said insert, whereby said fingers and said cover control the dissolving of said insert by controlling the surface area of said insert exposed to the detergent solution; and

(iv) a plurality of locking members and a flange both cooperatively connected to said ring, whereby said retaining ring is locked into position in said opening by said locking members and flange; and

(d) spray-forming nozzle means mounted to extend into said cavity through said circular opening, said inner apertures and said inner opening, whereby a pressurized spray of liquid is directed towards the detergent, such that hydraulic action of said nozzel directed spray dissolves a portion of the detergent, and forms a detergent solution which passses by gravity over said insert and dissolves a portion of said insert, and whereby the detergent solution and dissolved insert are discharged out of said circular opening through said inner aperture.