The present invention relates to a new and improved toilet seat lifting element that includes a handle that allows the user to lift the seat when desired. The lifting element is designed to prevent or minimize germ growth thereon so that the user can more safely lift the seat without encountering germs or bacteria that would otherwise grow on the handle surface due to its contact with the lower portion of the seat due to contact with human waste.
In the prior art, the desirability of a handle for lifting a toilet seat has been established. Most of the art has been concerned with simply attaching the handle to the seat in a secure but unobtrusive manner. In this regard, one can mention the following U.S. Pat. Nos. 5,341,519, 5,375,267, 5,729,839, 6,842,916, and 8,689,367 and US patent publication 2009/0313749. One problem with the prior art in general is that the handle is not securely attached to the toilet seat such that it can be dislodged or broken off by being stepped upon or kicked by a user. Another problem is that many of these handles are attached to the bottom of the seat which causes the seat to be reconfigured to accept the handle without being conventionally attached to the toilet bowl. Finally, the main problem with most prior art handles is that a variety of germs and pathogens can be transmitted through toilet seats, and in general these germs and pathogens can migrate to the handles of the prior art. For this reason, while the handles are provided to avoid this problem, they are not effective and are not much better than touching the toilet seat with one's hands, which of course many people dislike.
Accordingly, there is a need in the art for a sanitary toilet seat lifting mechanism that overcomes the problems of the art. This is now provided by the present invention.
The invention relates to a toilet seat comprising a seat support having a top surface and a lower surface and configured to be mounted on a toilet bowl; a sanitary lifting mechanism securely attached to the lower surface of the seat support, with the lifting mechanism comprising a handle member that has a rearward portion that is received in the seat support and a forward portion that extends outside of the seat support to facilitate lifting or lowering of the seat, and a protective plate member configured and arranged to fit below and within the lower surface of the seat support subjacent the rearward portion of the handle member and extending on both sides thereof to secure the handle member to the seat support; a fastening system for attaching the protective plate member to the lower surface of the support with the rearward portion of the handle member situated between the seat support and the protective plate member, and two or more seat bumpers that minimize contact of the lower surface of the seat support with the toilet bowl. The protective plate member and handle member are independently made of metal, an impermeable engineered plastic, treated wood, or a composite material.
The fastening system may include a plurality of screws or rivets; adhesives; a plurality of inserts securely mounted in the seat support and threaded bolts or screws that are received in the inserts; a plurality of threaded bolt shanks projecting from the lower surface of the support and received in openings in the protective plate member and being secured thereto by nuts; welding or another bonding system; hook and loop components, with one attached to the support and one attached to the protective plate member; or spikes or teeth in the protective plate member that are embedded in the seat support.
The seat support typically has a substantially U-shaped configuration, or a full or partial substantially circular or oval shape, and the protective plate member covers at least about 15% to substantially all of the lower surface of the seat support. Preferably, the protective plate member covers at least about 25% to 50% of the lower surface of the seat support. Advantageously, a balancing plate member is provided for covering at least about 25% to 50% of the lower surface of the seat support in an opposed location to the protective plate member so that the seat has a balanced weight to facilitate lifting or lowering of the seat. The protective plate member has a general thickness of between about 0.1 and about 0.35 inches wherein, when the protective plate member is made of metal, the thickness is between about 0.1 and about 0.25 inches, and when the protective plate member is made of plastic, the thickness is between about 0.2 and about 0.35 inches.
The rearward portion of the handle member is received in a slot or channel in the seat support, and the forward portion of the handle member is configured and dimensioned to be larger than the rearward portion to facilitate grasping and lifting or lowering of the seat. The fastening system attaches the protective plate member to the seat support in a manner that securely retains the rearward portion of the handle member in the slot or channel. Alternatively, the protective plate member when made of plastic may be molded onto or as part of the lower surface of the seat support or adhered by a suitable adhesive or by plastic welding with the rearward portion of the handle member positioned and securely held in a slot or channel between the protective plate member and seat support.
In one embodiment, the at least one seat bumper is attached to the seat support and the protective plate member has one or more apertures therein that are sufficiently large to surround each seat bumper to allow each seat bumper to protrude through the plate member. In an alternative embodiment, the protective plate member includes at least one seat bumper mounted thereon. The number of bumpers on the seat support or on the plate member can vary depending upon the desired holding of the seat support. Typically between 2 and 5 bumpers are provided.
In a preferred arrangement, the fastener system comprises a plurality of inserts securely mounted in the support and threaded bolts or screws that are received in the inserts with the bolts or screws each having a security head so that special tools are needed for attaching or detaching the plate members to the arms of the seat support.
The lower surface of the seat support may be substantially flat to facilitate attachment of a substantially flat protective plate member. Instead, the lower surface of the seat support may have a curvature with the protective plate member having a curvature that corresponds to the curvature of the lower surface of the seat support. Preferably, to maintain the original dimensions of the toilet seat, the lower surface of the seat support may include a recess for receiving the protective plate member therein. And if desired, the protective plate member may be configured and dimensioned to conform to the entire lower surface of the seat support.
Preferred embodiments of the invention will now be described in connection with the appended drawing figures, wherein:
In the description that follows, the term “substantially” is used for its ordinary meaning to indicate when shapes, dimensions or sizes are not precise or exact. A skilled artisan can readily determine what tolerances are acceptable to provide a shape, surface or mating component that can be combined with a conventional or modified seat support. Typically, the term “substantially’ will mean that the shapes, surfaces or component dimensions can vary from the specific shape or size mentioned, with the variances being as much as a 5 or 10% although in the more preferred embodiments the variance is less than 5%.
Additionally, all specific dimensions recited herein are approximate and can vary by as much as +10% to in some case ±25%. In some situations, the term “about” is used to indicate this tolerance. And when the term “about” is used before reciting a range, it is understood that the term is applicable to each recited value in the range. Often, the craftsmanship and engineering procedures that are followed in construction of the seats of the invention minimize these tolerances as much as possible or industrially practical.
Referring now to the drawings, shown in
The rearward portion 35 of the handle 30 is machined in an upper part of the cylinder to a uniform thickness and having rounded edges that match the curvature of the original cylinder. Of course, the rearward portion 35 of the handle may be machined to have a rectangular shape behind the substantially cylindrical forward portion of as part of a rectangular plate that forms the entire handle. In the preferred embodiment, the curved sides of the rearward portion 35 facilitate its secure placement in a slot or channel in the seat support as described herein.
Depending upon the material that is used, the protective plate member 75 has a thickness of between about 0.03 and about 0.35 inches. Typically, when the protective plate member 75 is made of metal such as the preferred stainless steel material, the thickness is between about 0.1 and about 0.25 inches and is typically about 1/16 (i.e., about 0.06) inch. When the protective plate member 75 is made of plastic or wood, the thickness may be between about 0.2 and about 0.35 inches. The thickness of the plate member 75 depends to some extent on the thickness of the seat and of course would be selected so that the recess 55 could be configured into the seat without loss of overall strength or support capabilities.
The recess 55 for the protective plate member extends from one end of the U-shaped support and includes a raised wall that surrounds the protective plate member. The openings 85 for the screws or bolts are strategically arranged in the plate member to provide a very secure attachment to the seat support 10, with the plate member extending completely about the rearward portion 35 of the handle so that it can be securely maintained in the slot or channel 50. The attachment is sufficiently strong so that the handle cannot be removed, and this allows users to raise and lower the seat many, many times with never having to touch the seat itself and without concern of germs or pathogens growing on the handle.
For attachment of the protective plate to the seat support, some of the openings are provided further back in the seat support beyond the point where the slot or channel 50 is located, while others are conveniently placed in other areas along or near the perimeter of the plate member 75. Of course, the seat support 10 also has corresponding openings 70 located to be aligned with the openings 85 to facilitate attachment of the plate member 75 within the recess 55. Depending upon the specific type of fastener system, openings 70 may not be necessary.
Approximately 50% of the bottom surface of the left half 20 of the U-shaped seat support is covered by the balancing plate member 80. This amount of the surface area can vary and can range from at least about 15% of the seat half 20 to substantially all of the lower surface of the left half 20 of the seat support. When the entire lower surface of seat support is provided with a single protective plate member, no balancing plate is needed. Like the protective plate member 75, the balancing plate member minimizes the area of the bottom surface of the seat support that may be subject to contact by human waste or splashing liquid or solids that would otherwise contaminate the bottom surface of the seat support. As disclosed herein, stainless steel or another non-porous material is desired for the balancing plate member to resist germ growth beneath the seat. Any of the materials disclosed for the handle and protective plate member are also suitable for use as the balancing plate member. Optimally, the balancing plate member 75 covers about 25% to 50% of the lower surface of the left half 20 of the seat support. And while the preferred embodiment is shown as a U-shaped seat support, the same type of analysis and coverage of the balancing plate member would be used on a round or oval shaped seat support.
As with the protective plate member 75, the balancing plate member 80 and the recess 60 are configured to maintain the plate member in the seat without changing the size of the seat or losing or compromising its overall strength or support capabilities. By configuring the balancing plate member 80 in substantially the same manner, size and thickness as the protective plate member, the seat is maintained with a generally balanced weight to facilitate lifting or lowering of the seat 10. And like the protective plate member 75, the balancing plate member 80 also includes a larger opening 100 which would fit snugly over seat bumper 40 and through which the bumper would protrude so that it can contact the upper surface of the toilet bowl when the seat 10 is in the operative position for use. And further, if the bumper is removed from the seat support, a separate bumper or bumpers can be provided on the balancing plate member itself.
Balancing plate member 80 also includes openings 90 for the screws or bolts with the openings strategically arranged in the plate member to provide a very secure attachment to the seat support 10. The openings are conveniently provided in areas along or near the perimeter of the plate member 80. Of course, the seat support 10 also has corresponding openings 70 located to be aligned with the openings 90 to facilitate attachment of the plate member 80 within the recess 60. Depending upon the specific type of fastener system, openings 70 may not be necessary beneath the balancing plate member.
According to a preferred embodiment of the invention, the fastener system for both the protective plate member 75 and the balancing plate member 80 comprises a plurality of inserts securely mounted in the holes 70 of the seat support. These inserts receive threaded bolts or screws that each have a security head so that special tools are needed for attaching or detaching the plate members to the arms of the seat support. The security head can be any of the conventional shapes or configurations that do not accept a Philips or flat screwdriver head and thus provides a secure, tamper resistant connection of the plate member to the seat support.
This connection is best shown in
A preferred feature of the invention is the use of the protective plate member to prevent contact of the handle 25 with the upper surface of the toilet bowl to prevent germs from directly contacting the handle. The protective and balancing plate members also prevent splashes of human waste or other liquids or solids from the bowl from contacting the lower surface of the seat support where they could grow and migrate toward and upon the handle. Materials such as stainless steel or copper alloys prevent germ growth on the plate member surfaces to provide further protection. The handle thus remains relatively germ free or at least significantly reduced in germ contamination so that it is more sanitary when used to lift or lower the seat.
Therefore, in sum, it is to be realized that the optimum dimensional relationships for the parts of the invention can include variations and tolerances in size, materials, shape, form, function and use are deemed readily apparent and obvious to the skilled artisan, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the claims appended hereto.
Unless defined otherwise, all technical and scientific terms used herein have same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Also, as used herein and in the appended claims, the singular form “a”, “and”, and “the” include plural referents unless the context clearly dictates otherwise. All technical and scientific terms used herein have the same meaning.
The foregoing detailed description is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily be apparent to those having ordinary skill in the art, it is not desired to limit the invention to the exact constructions demonstrated. Accordingly, all suitable modifications and equivalents may be resorted to falling within the scope of the invention.
This application claims the benefit of provisional application 62/254,442 filed Nov. 12, 2015, the entire content of which is expressly incorporated herein by reference thereto.
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Number | Date | Country | |
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62254442 | Nov 2015 | US |