Multiple compacted solids and packages thereof

• US 5,755,330 A
• Filed: 03/31/1997
• Issued: 05/26/1998
• Est. Priority Date: 05/22/1995
• Status: Expired due to Fees

• Current Assignee: HPD Laboratories, Inc. (WD-40 Company)
• Original Assignee: Block Drug Company Incorporated (GSK plc)
• Inventors: Ward, Kenneth J., Bernarducci, Ernest, Siragusa, Nicholas D., Sternheimer, Arthur, Sarasohn, Deborah A.
• Primary Examiner(s): FIDEI, DAVID
• Application Number:
  US08/828,597
• Time in Patent Office: 421 Days
• Field of Search: 206/219, 206/221, 206/222, 206/524.1, 206/538, 206/569, 383/37, 383/38, 220/23.8
• US Class Current: 206/524.1
• CPC Class Codes: B65D 81/3261 Flexible containers having several compartments

Abstract

A package for containing two automatic toilet bowl cleaners, one containing a bleaching cleaner and the other containing a detergent cleaner and a fragrance or dye susceptible to degradation by the bleaching agent, has separate pouches to separate the solids. The pouches open in concert to allow simultaneous dispensing of the solids. In operation, the water in the toilet cistern and bowl is cleaned both by the detergent and the bleaching agent, and the fragrance or dye is not affected by the bleaching agent.

Claims

1. A retail package for preventing contact between at least two solids that are incompatible when in mutual contact, comprising:

(a) a first hermetically sealed pouch;

(b) a first active solid in said first pouch;

(c) a second hermetically seach pouch; and

(d) a second active solid in said second pouch;

wherein said first pouch and said second pouch are separated by a shared, preformed wall, said first pouch and said second pouch are capable of being opened simultaneously, said first solid is of a substantially different size than said second solid and wherein said first solid comprises an oxidising agent and said second solid comprises a coloring agent or a detergent or both.

2. An automatic toilet bowl cleaner delivery system comprising:

(a) a non-flowable bleach puck comprising at least one bleaching agent;

(b) a non-flowable detergent block comprising at least one fragrance or dye adversely affected by said bleaching agent; and

(c) a compartmentalized package that separates said detergent block from said bleach puck during storage,

wherein said bleach puck and said detergent block are not in substantial contact in the tank of a toilet during use.

3. The system of claim 2, wherein said bleach puck comprises at least one halogenated hydantoin.

4. The system of claim 2, wherein said detergent block comprises at least one dye.

5. The system of claim 4, wherein said bleach puck comprises at least one halogentated hydantoin.

6. The system of claim 5, wherein said bleach puck comprises from about 35% by weight of the combined weight of said bleach puck and said detergent.