Title of Invention

CIRCULAR DISK-SHAPED CLEANING ELEMENT AND A METHOD OF UTILISING THE SAME

Abstract

The invention relates to a circular disk-shaped cleaning element intended for cleaning by means of a cleaning machine. The element is designed with a number of recesses (3) distributed over the active cleaning surface (2a) thereof. Grinding elements (4) containing industrial diamonds and conventionally used for grinding stone and concrete floors are arranged in the said recesses. The grinding elements are fixed in such a way that in use they only come into light contact with the surface that is to be cleaned. The invention further relates to a method of utilising a cleaning element in connection with wet cleaning conventionally performed with a cleaning machine. Alternatively, the device may be used in such a way that dry polishing is first performed using the cleaning element, following which wet cleaning is carried out using a conventional cleaning element.

Full Text

CIRCULAR DISK-SHAPED CLEANING ELEMENT AND A METHOD OF UTILISING THE SAME The present invention relates to a circular disk-shaped cleaning element and a method of utilising the same. In professional floor cleaning, for example in department stores, cleaning machines are used in attempts to remove dirt mechanically, often with the addition of chemicals. As the floors become ever more worn, that is to say scored and cracked and, particularly in the vicinity of dairy and meat counters, exposed to chemical wear, the cleaning results increasingly deteriorate, and attempts have been made to remedy this with ever greater quantities of more powerfully acting chemicals. It might be said that, in this way, cleaning ends up in vicious circle. Although it is true that this vicious circle can be broken by grinding the floor, thereby removing the scores and cracks in which dirt collects, such grinding requires special machines, takes a relatively long time to carry out and is also relatively costly. US 5054245 A, US 5605493 A and US 6234886 B1 are cited as examples of the prior art. These published patents relate to devices intended for cleaning, and more specifically to cleaning machines in which, in order to achieve a better cleaning result, the ordinary cleaning elements of the machine are combined with grinding elements containing grinding material such as diamond for grinding stone floors, for example. US 5 890 954 discloses a rotary floor edger/sander machine for floors which is provided with a sanding disc, which contacts the floor during sanding. The sander machine is further provided with a float bar assembly instead of castors. The provision of the float bar eliminates or reduces the tracks caused by castors on the back edge of the sander machine since the weight of the machine may be distributed evenly over the float bar. The float bar may be assembled such as to allow for omnidirectional tilting of the float member and to continuously conform to the plane of the floor. US 5 054 245 discloses a cleaning machine in which a number of cleaning pad mounting members may be attached to a rotating disc, by a nut and bolt arrangement. Cleaning pads (e.g. having a diamond grit cleaning surface) may be secured to the mounting members, e.g. by a hook and loop material. US 5 432 970 discloses a floor machine with a rotating treatment disc such as a brush or a pad. A protective skirt is arranged to float, i.e. drop freely, over the pad in order to minimize the space between the floor and the skirt, without detracting from the even ride of the disc over the floor. The object of the present invention is to provide a device of the aforementioned type, by means of which cleaning can be rendered more efficient and the time interval between two grinding operations can be considerably extended. Accordingly, the present invention provides a circular disk-shaped cleaning element, which is intended for cleaning by means of a cleaning machine and is designed with a number of recesses distributed over the active cleaning surface thereof, in which recesses grinding elements, containing industrial diamonds, conventionally used for grinding stone and concrete floors, are arranged so that when the disk is compressed the grinding elements are brought into light contact with the surface that is to be cleaned, characterised in that each grinding element is enclosed in a thermoplastic holder, which is in turn spring-mounted on the cleaning element. The element which is a so-called nylon and is designed with a brush surface. The invention also relates to the method of utilising the cleaning element in which dry polishing is first performed using the cleaning element, following which wet cleaning is carried out using a conventional cleaning element. The invention will be explained in more detail below with reference to the accompanying drawings, in which Fig. la, in a perspective view shows, by way of example, a cleaning element with a nylon scouring surface according to the invention. Fig. 1b shows a cross-section through the cleaning element in Fig. 1a. Fig. 2a in a perspective view shows another example of an embodiment with a brush surface and in which grinding elements are arranged in a different pattern to that in Fig. la. Fig. 3 shows a cross-section through a grinding element in a spring-mounted thermoplastic holder. Fitted to a cleaning machine of conventional type, a circular, disk-shaped cleaning element according to the invention is intended to improve the cleaning result and to this end comprises a rigid bottom disk 1, which is slightly convex. Fixed to the bottom disk 1 is a disk 2 made from a material which from experience gives a good cleaning result. Such a material is, for example, so-called nylon scouring material. In the disk 2 are a number of recesses 3 distributed over the active cleaning surface 2a thereof. Grinding elements 4 are arranged in the said recesses in such a way that, in the cleaning operation, these only come into light contact with the surface that is to be cleaned. The grinding elements 4, which are arranged in various patterns, and at the corners of a triangle in the embodiment shown in Fig. 1a, are of the usual type used in grinding stone or concrete floors and contain industrial diamonds. The requirement that the grinding element should only come into light contact with the surface that is to be cleaned is met in that when the disk 2 is compressed in use the active surface 4a of the elements lies directly under the active surface 2a of the disk 2. As shown in Fig. 3, each grinding element 4 is enclosed in a thermoplastic holder 4b and the holder is in turn spring-mounted on the bottom disk 1 of the cleaning element. The springing preferably consists of a silicone spring disk 5 and is fixed to the bottom disk 1 by means of a Velcro element 6. As will be apparent from another particular characteristic of the invention and as is shown in Fig. 2, the cleaning element is designed with a brush surface, that is to say the disk 2 is of a brush-like material. It will be appreciated that the disk 2 may naturally be designed with a combination of nylon scouring material and brush-like material. In the embodiment shown in Fig. 2 the grinding elements are located in radial rows, a recess being provided for each grinding element. The device may alternatively be used in such a way that dry polishing is first performed using the cleaning element according to the invention, following which wet cleaning is carried out using a conventional cleaning element such as a nylon scouring disk. WE CLAIM: 1. A circular disk-shaped cleaning element, which is intended for cleaning by means of a cleaning machine and is designed with a number of recesses (3) distributed over the active cleaning surface (2a) thereof, in which recesses grinding elements (4), containing industrial diamonds, conventionally used for grinding stone and concrete floors, are arranged so that when the disk (2) is compressed the grinding elements (4) are brought into light contact with the surface that is to be cleaned, characterised in that each grinding element (4) is enclosed in a thermoplastic holder (4b), which is in turn spring-mounted on the cleaning element. 2. The cleaning element as claimed in claim 1, having a so-called nylon scouring disk (2). 3. The cleaning element as claimed in claim 1, having a brush surface. 4. A method of utilising the cleaning element as claimed in any one of claims 1 to 3, said method comprising the step of performing dry polishing the surface object to be cleaned, with the cleaning element, followed by the step of carrying out wet cleaning with a conventional cleaning element. The invention relates to a circular disk-shaped cleaning element intended for cleaning by means of a cleaning machine. The element is designed with a number of recesses (3) distributed over the active cleaning surface (2a) thereof. Grinding elements (4) containing industrial diamonds and conventionally used for grinding stone and concrete floors are arranged in the said recesses. The grinding elements are fixed in such a way that in use they only come into light contact with the surface that is to be cleaned. The invention further relates to a method of utilising a cleaning element in connection with wet cleaning conventionally performed with a cleaning machine. Alternatively, the device may be used in such a way that dry polishing is first performed using the cleaning element, following which wet cleaning is carried out using a conventional cleaning element.

Documents:

1255-KOLNP-2004-CORRESPONDENCE 1.2.pdf

1255-KOLNP-2004-CORRESPONDENCE 1.3.pdf

1255-KOLNP-2004-CORRESPONDENCE-1.1.pdf

1255-KOLNP-2004-CORRESPONDENCE.pdf

1255-KOLNP-2004-FOR ALTERATION OF ENTRY.pdf

1255-KOLNP-2004-FORM 27 1.2.pdf

1255-KOLNP-2004-FORM 27-1.1.pdf

1255-KOLNP-2004-FORM 27.pdf

1255-KOLNP-2004-FORM-27.pdf

1255-kolnp-2004-granted-abstract.pdf

1255-kolnp-2004-granted-assignment.pdf

1255-kolnp-2004-granted-claims.pdf

1255-kolnp-2004-granted-correspondence.pdf

1255-kolnp-2004-granted-description (complete).pdf

1255-kolnp-2004-granted-drawings.pdf

1255-kolnp-2004-granted-examination report.pdf

1255-kolnp-2004-granted-form 1.pdf

1255-kolnp-2004-granted-form 18.pdf

1255-kolnp-2004-granted-form 3.pdf

1255-kolnp-2004-granted-form 5.pdf

1255-kolnp-2004-granted-gpa.pdf

1255-kolnp-2004-granted-reply to examination report.pdf

1255-kolnp-2004-granted-specification.pdf

1255-KOLNP-2004-PA 1.1.pdf

1255-KOLNP-2004-PA 1.2.pdf

1255-KOLNP-2004-PA.pdf