Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Solid – shaped macroscopic article or structure
Patent
1994-05-23
1996-07-16
Pal, Asok
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Solid, shaped macroscopic article or structure
510146, 510148, C11D 1700
Patent
active
055364330
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a cake of soap.
More specifically the invention relates to a cake of soap which is adapted to receive a remnant of a used cake of soap.
A cake of soap is usually used until it reaches a stage where is becomes difficult to hold and thereafter the user will more often than not simply throw the remaining piece of soap away. Typically this discarded remnant of soap is in the region of 5 to 15 per cent of the original piece of soap. When one calculates the amount of soap discarded by a single user in a year the amount wasted in terms of both cost and material can be significant. Also the impact of the wasted soap on the environment and drainage systems is another cause for concern.
To overcome this wastage it has been common practice for the user to simply mount the soap remnant on top of a new cake of soap so that after some use the two pieces of soap are moulded to become one. A problem with this practice has been the difficulty of getting the soap remnant to adhere to the new cake. Another disadvantage is that such a practice usually produces an unattractive and untidy result.
To overcome these problems, a number of inventions have been proposed, the majority of which involve the production of a cake of soap provided on one of its major surfaces with a recess shaped to receive a soap remnant. However a problem of getting the remnant soap to adhere readily to the new cake of soap remained a problem.
To obviate this problem there have been proposals to provide the recess with means to assist the retention of the soap remnant onto the new soap. One example provided for a plurality of shallow dimples on the recess to act as "suction cups" to hold the soap remnant in place. Another example provided raised notches on the recess to "spear" the soap remnant in position.
However the proposals somewhat complicates the manufacturing process of the new soap cake which could lead to an increase in costs eventually passed onto the consumer.
The present invention will seek to overcome or at least reduce the above identified problems or to provide the public with an alternative choice, by providing a cake of soap with means to receive and retain a used remnant of soap.
Thus in one form the invention resides in a cake of soap provided with a cavity which is adapted to receive a remnant of soap, said cavity extending into the interior region of said cake of soap wherein an opening to said cavity is provided on one side face of said cake of soap, said cavity having a pair of faces which are in opposed relation between which said remnant of soap is receivable.
It is preferable that the cavity be located along the longitudinal axis of the cake of soap. It is also preferable that the cavity be offset from the centre of the cake of soap.
The spacing between the opposed faces of the cavity is preferably less than the distance which the cavity extends inwardly from the opening. Preferably the opposed faces each extend transversely of the inward extent of the cavity and the spacing between the faces is less than the transverse extent of the faces.
Preferably the cavity is elongated and the opening opens into the longitudinal extent of the cavity.
Preferably the cavity is elongated and the opening opens into the transverse extent of the cavity.
In one arrangement an opening to the cavity is provided with the opening being located at one end face of the cake of soap. The cavity may be in the form of a pocket. In another arrangement two openings to the cavity may be provided each being located at opposing end faces of the cake of soap.
The off centre position ensures that when the soap remnant is inserted into the cavity and the new cake of soap used, the soap remnant will be totally or at least partly used as well. The size of the cavity should be such that the soap remnant is able to be inserted within the cavity so that a portion of the soap remnant protrudes therefrom.
The cavity is preferably located a sufficient distance away from the edges of the cake of soap so that the surrounding walls of the cavity a
REFERENCES:
patent: 692481 (1902-02-01), Robinson
patent: 3931035 (1976-01-01), Brown
patent: 4318878 (1982-03-01), Horning
Hailey Patricia L.
Pal Asok
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