US2025163692A1PendingUtilityA1
Splash Reducing Surfaces
Est. expiryNov 22, 2043(~17.3 yrs left)· nominal 20-yr term from priority
E03D 13/005E03D 13/00
43
PatentIndex Score
0
Cited by
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0
Claims
Abstract
Systems and methods for reducing splashing of a liquid impinging on a surface include two sidewalls symmetrically oriented about a vertical plane. The sidewalls are joined along the vertical plane defining a back corner of a splash reducing surface. Each sidewall forms an angle less than a critical angle relative to a horizontal line extending from the sidewall to a vertical axis. The vertical axis is on the vertical plane at a specified distance from the back corner.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A splash reducing surface comprising:
two sidewalls symmetrically oriented about a vertical plane, the sidewalls being joined along the vertical plane defining a back corner of the splash reducing surface, each sidewall forming an angle less than a critical angle relative to a horizontal line extending from the sidewall to a vertical axis, the vertical axis being on the vertical plane at a specified distance from the back corner.
2 . The splash reducing surface of claim 1 , wherein the sidewalls form the angle less than the critical angle relative to the horizontal line for a range of rotation angles of the horizontal line relative to the vertical plane.
3 . The splash reducing surface of claim 1 , wherein the two sidewalls form an upper portion having a cross section in a horizontal plane, and wherein the splash reducing surface further comprises a lower portion joined to the upper portion and wherein a cross-section of the lower portion is continuous with the cross-section of the upper portion translated along a curve.
4 . The splash reducing surface of claim 3 , wherein the splash reducing surface is a urinal.
5 . The splash reducing surface of claim 4 , further comprising: a drain formed in the lower portion.
6 . The splash reducing surface of claim 1 , wherein the sidewalls of the splash reducing surface are defined by
r
=
B
exp
(
α
Θ
)
,
where r is a distance from the vertical axis to the sidewall, B is the specified distance from the back corner, α is an azimuthal angle of r relative to the vertical plane, and Θ=±tan θ is the tangent value of the critical angle θ.
7 . The splash reducing surface of claim 1 , wherein the critical angle is 40 degrees or less.
8 . The splash reducing surface of claim 1 , wherein the critical angle is 30 degrees or less.
9 . A urinal comprising:
a bowl comprising:
a back surface forming an angle less than a critical angle between a line extending from a fluid origination point to the back surface, the fluid origination point being a specified distance from the back surface and a specified height from a bottom of the bowl;
two sidewalls, each sidewall forming a sidewall angle between a central vertical plane including the fluid origination point and the sidewall; and
a front wall joining the two sidewalls and a bottom portion of the back surface, wherein the two sidewalls and the back surface define an opening.
10 . The urinal of claim 9 , wherein the line is a parabolic curve.
11 . The urinal of claim 9 , wherein the back surface is defined by
C
=
3
8
Θ
2
-
1
arc
tan
(
4
Θ
z
-
r
r
8
Θ
2
-
1
)
+
1
2
ln
(
2
Θ
z
2
-
rz
+
Θ
r
)
,
where and Θ=±tan θ is the tangent value of the critical angle θ, r is a distance between the fluid origination point and the back surface, z is a vertical distance relative to the fluid origination point, and C is a constant related to the specified distance.
12 . The urinal of claim 9 , wherein the critical angle is 30 degrees or less.
13 . A method for forming a splash suppressing surface, the method comprising:
determining a fluid origination point a specified length from a back portion of the splash reducing surface; defining a surface that intersects a line extending from the fluid origination point, the line intersecting the surface at an angle less than a critical angle; and fabricating the defined surface to form the splash suppressing surface.
14 . The method of claim 13 , wherein fabricating the defined surface comprises fabricating a porcelain casting of the defined surface.
15 . The method of claim 13 , wherein the critical angle is 30 degrees or less.
16 . The method of claim 13 , wherein the back surface is defined by
C
=
3
8
Θ
2
-
1
arc
tan
(
4
Θ
z
-
r
r
8
Θ
2
-
1
)
+
1
2
ln
(
2
Θ
z
2
-
rz
+
Θ
r
)
,
where and Θ=±tan θ is a tangent value of the critical angle θ, r is a distance between the fluid origination point and the back surface, z is a vertical distance relative to the fluid origination point, and C is a constant related to the specified distance.
17 . The method of claim 13 , wherein the surface is defined by
r
=
B
exp
(
α
Θ
)
,
where r is a distance from the fluid origination point to the surface, B is the specified length from the back portion, α is an azimuthal angle of r relative to a central vertical plane, and Θ=±tan θ is a tangent value of the critical angle θ.
18 . The method of claim 13 wherein the surface is defined by rotating the line through a range of angles relative to a central vertical plane containing the fluid origination point.
19 . The method of claim 18 , wherein the surface is a first surface, and the method further comprises:
defining a second surface that is a mirror image of the first surface across the central vertical plane, wherein fabricating the surface comprises fabricating the first surface and the second surface together to form a unified body.
20 . The method of claim 19 , wherein the first surface and the second surface form a urinal.Join the waitlist — get patent alerts
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