Method and apparatus for dispensing a particulate material

• US 5,007,559 A
• Filed: 06/01/1989
• Issued: 04/16/1991
• Est. Priority Date: 07/21/1986
• Status: Expired due to Term

• Current Assignee: Chemtron, Inc.
• Original Assignee: Cecil B. Young
• Inventors: Young, Cecil B.
• Primary Examiner(s): Huppert, Michael S.
• Assistant Examiner(s): Huson, Gregory L.
• Application Number:
  US07/361,692
• Time in Patent Office: 684 Days
• Field of Search: 422/263-264, 422/266-267, 222/64, 222/67, 222/52, 222/185, 222/189, 222/190, 222/325, 222/1, 222/545
• US Class Current: 222/1
• 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

Abstract

The disclosure relates to a method and apparatus for dispensing detergent into a washing machine. A container of particulate detergent includes a multilayer cover over the container mouth, the outer layer of which is removable to expose an inner layer of wire mesh. The relationship of the mesh size to the particulate detergent as one which prohibits passage of the detergent until dissolved at least partially by water. The receptacle is configured to receive and support the container above the inlet to the washing machine. The water sources provided within the receptacle to spray water and control the amounts through the wire mesh to dissolve the detergent. Once dissolved, the detergent can flow through the mesh and to the inlet of the washing machine.

Claims

1. A method for dispensing detergent to a washing machine comprising:

(a) forming a container from plastic material with a shoulder and a neck portion integral therewith prior to insertion of detergent therein;

(b) placing the detergent in particulate form within a container, said container having a mouth for receiving the detergent;

(c) covering the container mouth with a cover material which is impermeable to particulate matter while permitting passage of water, said covering step being made prior to delivery of said container to said washing machine;

(d) said washing machine having an exterior portion and an interior portion, said washing machine having an inlet connected to said interior portion for receiving the detergent, said inlet being in communication with a fixed receptacle facing upwardly, said receptacle having a complementary portion for engaging said container mouth;

(e) delivering said container to the vicinity of said washing machine;

(f) arranging said container with respect to said receptacle to form a closed path between the container and said inlet, said particulate matter being supported above the inlet by said cover material, within the container and exposed to said inlet;

(g) subjecting said particulate material while supported within said container above said inlet to controlled amounts of fluid to dissolve particulate material in the vicinity of the container mouth sufficiently to permit passage of detergent through said cover material and to said inlet; and

(h) the step of subjecting said particulate material while supported within said container above and said inlet including spraying fluid from a position exterior to said container through said cover material to said mouth of said container to dissolve material in the vicinity of the mouth in the lower portion of the container while detergent in the upper part of the container remains substantially dry.

2. The method according to claim 1 wherein said covering step includes fixing a wire mesh over the mouth of the container, said mesh having a number of apertures smaller than the particulate material within the container.

3. The method according to claim 2 wherein said covering step includes fixing a cover with a solid material impervious to fluid over said mesh, and further comprising removing said solid material prior to arrangement of the container above said inlet.

4. The method according to claim 3 wherein said solid material is a tear-away closure, and said removing step includes removing the tear-away closure while leaving the mesh fixed over the mouth of the container.

5. The method according to claim 4 wherein said container includes a neck portion circumscribing the mouth of the container, said receptacle having a complementary portion configured for substantially surrounding the neck portion and engaging said neck portion to hold the container in position with respect to said inlet, said interfacing step including placing the neck portion within the complementary neck portion of said receptacle.

6. The method according to claim 5 wherein said container further comprises a body portion in addition to said neck portion, said body portion having an effective diameter greater than that of said neck portion, and a shoulder portion connecting the body portion of the container to the neck portion, said receptacle defining a complementary shoulder portion configured for substantially surrounding the shoulder of the container, and said interfacing step including placing the container within the receptacle such that said shoulder lies within the complementary shoulder portion of the receptacle.

7. The method according to claim 6 comprising the step of subjecting said particulate material to a water source from within the receptacle for dissolving the particulate material in the vicinity of the wire mesh.

8. The method according to claim 7 wherein said water is sprayed at a temperature above about 100 degrees Farenheit.

9. A container for dispensing detergent in particulate form for use with a washing machine having a complementary receptacle comprising:

(a) a hollow body portion containing particulate detergent therein;

(b) said container having a shoulder portion and a neck portion integral therewith, said shoulder portion and said neck shaped to cooperate with said receptacle to form a substantially closed path therebetween;

(c) a mouth connected to said neck portion to permit access to the interior of the container; and

(d) said mouth being covered by a cover material impervious to the particulate detergent while being pervious to a fluid sprayed through said cover from a position exterior of said container for dissolving said detergent sufficiently to pass through said cover of the wire mesh, said cover material being fixed to said container independently of said receptacle.

10. The container according to claim 9 wherein said cover includes a cover having two layers of material, an inner layer of said wire mesh and a removable outer layer to expose said inner layer of wire mesh.

11. The container according to claim 10 wherein said outer layer includes score lines to permit said outer layer to be peeled away from the remaining portion of said cover.

12. The container according to claim 11 wherein said body portion is cylindrical having a circular cross section, said mouth being defined by said neck portion and having a smaller diameter than the body portion, a shoulder connecting said body portion to said neck portion.

13. The container according to claim 12 wherein said cover is configured to fit over said mouth with a skirt circumscribing a portion of said neck portion, said outer layer having a tab extending therefrom for grasping by the user to peel away said outer layer.

14. A package for dispensing detergent in particulate form for use with a washing machine having a complementary receptacle comprising:

(a) a body portion containing particulate detergent, said body portion formed from blow molded plastic, said body portion being cylindrical in configuration with a circular cross section;

(b) a neck fixed to said body portion, said neck having a diameter less than that of said body portion;

(c) a mouth for providing access to the interior of said body portion, said mouth having a diameter less than said body portion and being formed by said neck;

(d) said neck and said body portion shaped to cooperate with said receptacle to form a substantially closed path therebetween;

(e) a cover for covering said mouth, said cover having a skirt circumscribing a portion of said neck; and

(f) said cover having an inner layer and an outer layer, said inner layer comprising a wire mesh with apertures sufficiently smaller than the particulate material to prevent passage of the particulate material therethrough while permitting passage of water to dissolve said particulate detergent in the vicinity of said mesh, said outer layer comprising a solid material impervious to water and said particulate matter, said outer layer being scored to permit peeling away for exposing said inner layer, said outer layer having a tab for grasping by the user for effecting peeling away of said outer layer, said cover being fixed to said container independently of said receptacle.

15. A method for dispensing detergent in the form of particulate material to a washing machine comprising:

(a) placing the detergent into a container having a cylindrical body, a neck portion having an effective diameter less than the effective diameter of said body, and a shoulder connecting the body to the neck portion, said neck portion defining a mouth for obtaining access to the container;

(b) covering the mouth of the container with a cover having an inner mesh extending over the entire area of the mouth and an outer layer of solid impervious material scored for permitting the outer portion to be peeled away from said inner mesh, said mesh being impervious to the detergent in particulate form when placed in the container while permitting passage;

(c) the washing machine having a receptacle for receiving the neck portion and shoulder of the container, said washing machine having an inlet in communication with the amount of the receptacle, the receptacle being fixed to said machine;

(d) peeling away the solid material of said cover to expose said wire mesh;

(e) arranging the container in the receptacle with the wire mesh in a horizontal plane, facing downwardly and above said receptacle outlet, the mesh supporting the detergent above the mesh and within the container;

(f) spraying water from a position within the receptacle through the wire mesh for sufficiently dissolving the detergent in the vicinity of the wire mesh to permit passage through the mesh to the outlet; and

(g) controlling the amount of water sprayed during each washing cycle to dispense the amount of detergent required.

16. An apparatus for dispensing particulate washing material into a washing machine comprising:

(a) a container for carrying said particulate washing material, said container having a shoulder portion and a neck portion;

(b) a receptacle with a complementary portion in a fixed position with respect to the washing machine for receiving the neck and shoulder portion of said container;

(c) said washing machine having an interior portion and an exterior portion with a washing machine inlet connected to said interior portion;

(d) said receptacle being connected to said inlet;

(e) said container having an opening covered with a material impervious to the particulate washing material while being pervious to water said impervious material being fixed to said container to permit insertion into said receptacle and removal therefrom without spillage of said particulate washing material;

(f) said receptacle having a means for spraying of water;

(g) said receptacle configured for cooperating with said container to support said container opening above said inlet, said means for spraying water being located to direct a water spray to said material covering and dissolve the particulate washing material sufficiently to permit passage through said impervious material.

17. The apparatus according to claim 16 wherein said covering material includes a wire mesh having aperatures sufficiently smaller than the particulate washing material to prohibit passage of the washing material therethrough.

18. The apparatus according to claim 17 wherein said washing material includes a detergent.

19. The apparatus according to claim 18 wherein said container further comprises an outer layer of material impervious to water over said wire mesh, said layer being removable to expose said wire mesh.

20. The apparatus according to claim 19 wherein said means for spraying water includes a nozzle extending upwardly from the center of said receptacle and said inlet located beneath said nozzle.