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Cleaning impliments having magnetic meansRelated Patent Categories: Brushing, Scrubbing, And General Cleaning, Implements, Tool Coated Or Impregnated With Material Supply, Including Means For Manual Manipulation Of ImplementCleaning impliments having magnetic means description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060016030, Cleaning impliments having magnetic means. Brief Patent Description - Full Patent Description - Patent Application Claims
REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation-in-part application of patent application Ser. No. 60/589,387 filed 20 Jul. 2004. FIELD OF INVENTION [0002] This invention relates to devices used in cleaning. More particularly, to dusting or sweeping devices that use magnetism to assist in collecting dust or dirt that is susceptible to a magnetic field. BACKGROUND OF THE INVENTION [0003] A number of devices have been used over the centuries to remove unwanted dust and dirt particles from surfaces both inside and out. Brooms were developed long ago and were generally composed of a bundle of firm sticks or fibers bound together onto a long handle for brushing or sweeping dirt and other unwanted items from a surface. Unfortunately, not all items that impact the floor could be swept or brushed away. [0004] Mops were designed to provide soap and water or a cleaning solution to the floor for removing organic materials. Mops have been used over the past few centuries and are generally composed of absorbent rope or twine bundled together and affixed to a long handle. While the mop has been effective in removing unwanted organic matter from floor the surface must be allowed to dry prior to use to prevent potential injury from slipping and/or falling. [0005] Recent innovations in cleaning devices have lead to the development of the dust mop such as those described in U.S. Pat. Nos. 5,815,878 and 6,305,046. The dust mop was designed to clean smooth surfaces such as tile and wood floors. They have also been adapted for use on furniture, such as tables, cabinets, or counters as handheld dusters. The dust mop usually has a handle attached to a cleaning head with a flat surface on which a cleaning sheet or cloth is secured. This construction has the advantage of performing the functions of both a broom and a mop simultaneously. The cleaning sheet acts like a broom pushing and aggregating dirt and dust as it is drawn over a surface. The chemicals provided on the cleaning sheet dissolve and remove unwanted organic matter from the surface as the head is passed over the affected area. Unfortunately, these dust mops are limited on the volume and size of the particles they are able to capture and remove from a surface. The size limitations are generally a factor of the cleaning sheet weave and the static charge provided on the sheet surface. Particles not captures by the cleaning sheet may be too heavy to be removed from the surface or simply too large. [0006] Consequently, there is a need for a dust mop that functions to remove dust and dirt from a surface like a broom, is able to dissolve or remove organic matter from a surface like a mop and has the ability to remove heavy and/or larger particles from a surface that other commercially available mops are unable to remove. SUMMARY OF THE INVENTION [0007] In accordance with the present invention a device for cleaning surfaces is provided comprising; a housing having a handle on one end and a cleaning head on the other end the cleaning head having an upper surface, a lower surface, a perimeter edge and a magnetic means, the magnetic means providing a magnetic field to at least the lower surface of the cleaning head and at least one attachment means provided on the upper surface or the perimeter for securing a cleaning sheet over the lower surface of the cleaning head. [0008] In another aspect of the present invention a device for cleaning surfaces is provided comprising; a handle, a cleaning head attached to the handle, the cleaning head having an upper surface, a lower surface, and a perimeter edge, a magnetic means attached to or encased within the cleaning head, the magnetic means providing a magnetic field to at least the lower surface of the cleaning head and at least one attachment means provided on the upper surface or the perimeter for securing a cleaning sheet over the lower surface of the cleaning head. [0009] In one embodiment of the present invention the magnetic means is at least one rigid magnet, a flexible magnetic sheet or at least one magnetic filament. Preferably the at least one rigid magnet is provided within the cleaning head. Alternatively, the magnetic means is a flexible magnetic sheet affixed on the lower surface of the cleaning head. The magnetic means may also be at least one magnetic filament provided on the lower surface of the cleaning head. [0010] In another embodiment the housing may further comprise a flexible means between the handle and the cleaning head that allows the cleaning head to pivot about the handle. Preferably the flexible means comprises a universal joint and a rotational joint. [0011] In yet another embodiment the attachment means functions by way of direct pressure. In this configuration it is preferable that the attachment means is at least one clamp. Most preferably the clamp is activated by a spring or magnet. In another configuration the attachment means may function by way of frictional pressure. In this configuration the attachment means is a serrated strip, at least one pressure grip or Velcro.TM.. In yet another embodiment the attachment means functions by mechanical pressure. In this configuration it is preferable that the attachment means be one or more snaps. [0012] In another aspect of the invention a cleaning sheet is provided comprising; a fiber matrix wherein one or both surfaces of the fiber matrix have a static charge and at least one magnetic means provided within or sewn through the fiber matrix. In one embodiment of this aspect of the invention the cleaning sheet further comprises a cleaning solution saturated into its fiber matrix. BRIEF DESCRIPTION OF THE DRAWINGS [0013] FIG. 1 is a perspective view of one preferred handheld duster of the present invention having pressure grips for affixing a cleaning sheet on the top surface of the cleaning head. [0014] FIG. 2 is a perspective view of one preferred duster floor mop of the present invention having a magnet clamp for affixing a cleaning sheet on the perimeter edge of the cleaning head. DESCRIPTION OF THE INVENTION [0015] Unless defined otherwise, all terms used herein have the same meaning as are commonly understood by one of skill in the art to which this invention belongs. All patents, patent applications and publications referred to throughout the disclosure herein are incorporated by reference in their entirety. In the event that there is a plurality of definitions for a term herein, those in this section prevail. [0016] The term "attachment means" as used herein refers to a means for securely, yet reversibly affixing a cleaning sheet the cleaning head of the device by a variety of methods by a variety of methods such as for example one or more press grip such as that described in U.S. Pat. No. 6,305,046, one or more snaps, one or more magnets or one or more clamps. [0017] The term "housing" as used herein refers to the main body of the device in any shape or configuration that provides the structure of a head on one end and a handle on the other in a single unit. The housing may be provided in a variety of configurations ranging from a relatively short configuration to an elongated configuration. For example, the housing might have a short handle integral to the upper surface of the cleaning head wherein the handle is generally parallel to the length of the cleaning head and may extend beyond the perimeter of the cleaning head. Alternatively, the housing may be long having a handle on one end and a cleaning head on the other, both integral to an elongated shaft portion. [0018] The term "head" or "cleaning head" as used herein refers to a structural element of the invention that provides a lower surface that interfaces with the surface to be cleaned for affixing a cleaning sheet. The cleaning head may have a flat lower surface such as would be preferred for a floor or tabletop. Correspondingly, the surface of the cleaning head may conform to the surface intended to be cleaned. For example, if the cleaning head is used to clean baseboard molding in a home it may have a lower surface that conforms to the routed or milled surface to increase the ease and effectiveness of cleaning. 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