Lavatory cleansing blocks

• US 4,460,490 A
• Filed: 12/17/1981
• Issued: 07/17/1984
• Est. Priority Date: 12/18/1980
• Status: Expired due to Term

• Current Assignee: Jeyes Holdings Limited
• Original Assignee: Jeyes Group Limited (Henkel AG & Co KGaA)
• Inventors: Barford, Eric D., Jeffrey, Daniel J., Raynor, Paul A.
• Primary Examiner(s): Kittle, John E.
• Assistant Examiner(s): Le, Hoa Van
• Application Number:
  US06/331,822
• Time in Patent Office: 943 Days
• Field of Search: 252/90, 252/174, 252/134, 252/174.13, 252/DIG. 16, 252/95, 252/99, 252/106, 252/94, 252/91, 252/92, 252/186.25, 4/222, 4/227, 4/228, 222/190, 264/75, 264/240, 264/241
• US Class Current: 510/192
• CPC Class Codes: C11D 17/0039 Coated compositions or coated components in the compositions, (micro)capsules
• CPC Class Codes: C11D 17/0056 Lavatory cleansing blocks
• CPC Class Codes: C11D 17/0082 Coated tablets
• CPC Class Codes: C11D 3/3953 Inorganic bleaching agents C11D3/3951 takes precedence
• CPC Class Codes: C11D 3/3955 Organic bleaching agents C11D3/3951 takes precedence

Abstract

A free-standing lavatory cleansing block for immersion in the cistern of a lavatory comprises a shaped body (1) formed of a slow-dissolving cleaning composition containing at least one surface active agent and a tablet (2) comprising a bleaching agent embedded in or adhered to the shaped body.

Claims

1. A lavatory cleansing block comprising a shaped body formed of a slow-dissolving cleaning composition containing at least one surface active agent and a tablet comprising a bleaching agent, the bleaching agent being embedded in or adhered to the shaped body.

2. A lavatory cleansing block as claimed in claim 1 having a weight of from 30 to 300 grams.

3. A lavatory cleansing block as claimed in claim 1 or claim 2 in which the bleach tablet is provided with a coating of a readily water-soluble or water-dispersible material to prevent direct contact of the tablet with the material of the shaped body.