Pool drain with water diversion features

• US 10,344,491 B2
• Filed: 07/22/2016
• Issued: 07/09/2019
• Est. Priority Date: 07/22/2016
• Status: Active Grant

• Current Assignee: Olaf Mjelde
• Original Assignee: Olaf Mjelde
• Inventors: Mjelde, Olaf
• Primary Examiner(s): Nguyen, Tuan N
• Application Number:
  US15/217,892
• Publication Number:
  US 20180023311A1
• Time in Patent Office: 1,082 Days
• Field of Search: 4507, 4509
• CPC Class Codes: E04H 4/1209 Treatment of water for swimming pools filters B01D
• CPC Class Codes: E04H 4/1236 Bottom drains

Abstract

A pool drain for flush mounting in the surface of a swimming pool includes a central hub and elongated drain ports in fluid communication with the central hub. The elongated drain ports extend radially away from the central hub. The surface material individually surrounds the central hub and elongated drain ports when the pool drain is installed in the surface material. Internal dividers are located between the central hub and the elongated drain ports. The internal dividers are positioned so that they direct fluid away from the central hub, around each of the internal dividers and back toward the central hub. A water stop surrounding the central hub and elongated drain ports anchors the pool drain in the surface and prevents leakage.

Claims

1. A pool drain for flush mounting in a surface material of a swimming pool or spa having a pump-driven filtering system, the pool drain comprising:

a central hub having an access port, the central hub in fluid communication with the pump-driven filtering system;

a plurality of elongated drain ports in fluid communication with the central hub, the plurality of elongated drain ports extending radially away from the central hub;

an internal divider disposed beneath each elongated drain port, the internal divider partially occluding an internal space to deflect a portion of fluid entering through the elongated drain port, the internal divider being configured to direct the portion of fluid to pass around and under a surface thereof toward a drainage tube of the central hub for equalizing suction pressure at the elongated drain port; and

wherein the surface material individually surrounds the access port and each of the plurality of elongated drain ports separating the elongated drain ports from the access port when the pool drain is installed in the surface material.

2. The pool drain of claim 1 further comprising a removable lid covering the access port.

3. The pool drain of claim 1 further comprising a plurality of internal dividers, each of the internal dividers disposed between the central hub and one of the plurality of elongated drain ports.

4. The pool drain of claim 3 wherein the plurality of internal dividers are positioned to direct fluid away from the central hub, around the plurality of internal dividers and back toward the central hub.

5. The pool drain of claim 1 further comprising a water stop surrounding the central hub to anchor the central hub within the surface material and prevent leakage.

6. The pool drain of claim 1 further comprising a plurality of water stops surrounding each of the plurality of elongated drain ports to anchor the plurality of elongated drain ports within the surface material and prevent leakage.

7. The pool drain of claim 1 wherein the plurality of elongated drain ports comprises four elongated drain ports.

8. The pool drain of claim 1 wherein the plurality of drain ports comprises two longitudinal drain ports oriented along a longitudinal axis and two lateral drain ports oriented along a lateral axis.

9. The pool drain of claim 8 wherein the longitudinal drain ports and the lateral drain ports are substantially narrower than the access port.

10. The pool drain of claim 1 further comprising a water stop surrounding the central hub, the longitudinal elongated drain ports and the lateral elongated drain ports for anchoring the pool drain in the surface material to prevent leakage.

11. A pool drain for installation in a surface material of a swimming pool or spa, and connection to a pump-driven filtering system, the pool drain comprising:

a central hub in fluid communication with the pump-driven filtering system;

an elongated drain port forming an upper portion of an arm, the arm extending from the central hub and coupling the elongated drain port to the central hub;

the arm having an internal divider partially occluding the arm to deflect a portion of fluid entering the arm through the elongated drain port; and

the internal divider being configured and positioned in the arm to direct the portion of fluid to pass around and under a surface thereof toward a drainage tube of the central hub for equalizing suction pressure at the elongated drain port.

12. The pool drain of claim 11 further comprising a removable lid covering the central hub.

13. The pool drain of claim 11 further comprising a water stop surrounding the central hub to anchor the central hub within the surface material and prevent leakage.

14. The pool drain of claim 11 further comprising a water stop surrounding the elongated drain port to anchor the elongated drain port within the surface material and prevent leakage.

15. The pool drain of claim 11 further comprising a plurality of arms, each having an elongated drain port.

16. The pool drain of claim 15 wherein the plurality of arms consists of two opposing longitudinal arms arranged substantially perpendicular to two opposing lateral arms.

17. The pool drain of claim 11, wherein the arm extends radially away from the central hub.

18. A pool drain for flush mounting in a surface material of a swimming pool or spa having a pump-driven filtering system, the pool drain comprising:

a central hub having an access port, the central hub in fluid communication with the pump-driven filtering system;

two longitudinal elongated drain ports extending away from the central hub in opposing directions along a first axis;

two lateral elongated drain ports extending away from the central hub in opposing directions along a second axis;

an internal divider disposed beneath each of the elongated drain ports, the internal divider partially occluding an internal space to deflect a portion of fluid entering through the elongated drain port, the internal divider being configured to direct the portion of fluid to pass around and under a surface thereof toward a drainage tube of the central hub for equalizing suction pressure at the elongated drain port; and

wherein the first axis is substantially perpendicular to the second axis.

19. The pool drain of claim 18 further comprising a removable lid covering the access port.

20. The pool drain of claim 18 further comprising a plurality of internal dividers disposed between the central hub and each of the longitudinal elongated drain ports and the lateral elongated drain ports.

21. The pool drain of claim 18 wherein the plurality of internal dividers are positioned to direct fluid away from the central hub, around the plurality of internal dividers and back toward the central hub.