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Anti-splash urinals

a technology of urinals and urinals, applied in the field of urinals, can solve the problems of urine splashing out of the urinal onto the floor or other exterior surfaces, and achieve the effect of preventing urine splashing out of the urinal

Inactive Publication Date: 2010-04-22
FALCON WATERLESS TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]Several advantages are derived from this arrangement. Splashing from the urinal is at least minimized if not always avoided. Cleanliness exterior to the urinal is enhanced. Soiling of the clothing of users of the urinal and their embarrassment is attenuated, if not averted.

Problems solved by technology

One of the problems relevant to urinals is the tendency of urine to splash out of the urinal onto the floor or other exterior surfaces or even onto the person using the urinal.
Another problem is, when a putative solution has been advanced, such a solution sometimes required a urinal design that presented costly difficulties or challenges in manufacture of such urinals.

Method used

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Examples

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Embodiment Construction

[0022]Accordingly, as depicted in FIGS. 1 and 2, a urinal 20 having a vertical rear wall 22, which rear wall is mounted on a wall of a bath or rest room. Urinal 20 includes a top wall 23 which extends outwardly from rear wall 22. While illustrated in FIG. 1 as sloping downwardly, this is not critical, as top wall 23 can be horizontal. Urinal 20 further includes an interior back wall 24 which extends downwardly from top wall 23 and, as it extends downwardly, it extends inwardly at a 30° angle from the vertical. Side walls 26, one of which is shown in dashed lines in FIG. 1 and fully in FIG. 2, extend from top wall 23 to the front lip, as denoted by indicium 28, of the urinal. The bottom of the urinal, as indicated by indicium 27, is provided with a recess 29, into which a water-free cartridge 32 is inserted. An example of such a water-free cartridge is disclosed in U.S. Pat. No. 6,973,939. It is to be understood, however, that recess 29 may comprise any known outlet to a drain, not n...

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PUM

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Abstract

A urinal uses a sloped interior back wall to create a specific angle between an incoming urine stream and the back wall to effect an anti-splash phenomenon which involves the contact angle hysteresis and the coanda effect, thereby at least to minimize urine splashing. The contact angle hysteresis deals with the perpendicular angles at which the urine stream comes into contact with the back wall of the urinal bowl, that is the amount of angle degrees between the angle of surface of the bowl and the angle of the urine stream at the point of contact. This angle takes advantage of the Coanda effect so as to cause the fluid (urine) to run down the surface of the back wall to the bottom of the urinal, rather than splashing back. The Coanda effect is the tendency of a fluid jet to stay attached to an adjacent curved surface that is very well shaped. In one embodiment, the interior back wall is vertically sloped towards the user, at an angle greater than 20° from the vertical (e.g., 30° to accommodate a 60° urine stream), and the back wall may be further curved from side to side. In an other embodiment, the interior back wall has a undulated top-to-bottom or vertical contour.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Provisional Application No. 61 / 129,164, filed 9 Jun. 2008.REFERENCE REGARDING FEDERAL SPONSORSHIP[0002]Not ApplicableREFERENCE TO MICROFICHE APPENDIX[0003]Not ApplicableBACKGROUND OF THE INVENTION[0004]1. Field of the Invention[0005]The present invention relates to urinals and, in particular, to improvements in such urinals utilizing the Coanda effect, that is, the tendency of a fluid to stay attached to an adjacent surface so as to minimize urine splashing.[0006]2. Description of Related Art and Other Considerations[0007]One of the problems relevant to urinals is the tendency of urine to splash out of the urinal onto the floor or other exterior surfaces or even onto the person using the urinal. There have been many solutions designed to avoid such problems, such as providing side and back wall appurtenances. Another problem is, when a putative solution has been advanced, such a solution sometime...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E03D13/00
CPCE03D13/00
Inventor RICE, JIMMY R.YAVAS, MEHMETHELBIG, THOMAS
Owner FALCON WATERLESS TECH INC
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