F04F10/00

Non-resistive circulation to elevated containers
12529387 · 2026-01-20 · ·

The invention relates to circulation of fluids to an elevated container in general and more specifically a system and a method for circulation of fluids in a non-resistive manner to an elevated container with at least one fluid source container, at least one closed container for circulation, at least one elevated fluid container, at least one circulation mechanism for the purpose of circulation, and at least one start-stop mechanism for the purpose of circulation control.

Automatic double-bell siphon
12553453 · 2026-02-17 ·

A double-bell siphon for liquid flow control that improves upon existing bell siphons by the addition of an outer bell which helps the bell siphon to stop siphoning when the liquid level drops below the intended level. Optionally, a cup further enhances the ability for the siphon to stop properly.

PASSIVE SIPHON-BASED FLUID REMOVAL APPARATUS
20260043421 · 2026-02-12 ·

An apparatus and method for removing fluid from the bilge of a boat without electrical power or manual intervention is disclosed. The system includes a bilge accumulator positioned within the bilge to collect fluid, a siphon generator mounted on the exterior of the boat at or below the waterline, and a tube connecting the two. The siphon generator incorporates a Venturi passage that generates a vacuum as water flows across its surface during vessel motion, thereby drawing fluid from the bilge accumulator and expelling it overboard. The accumulator may include a sponge or multi-stage filter for debris removal and priming retention, and mounting components for secure installation. A check valve may be included to prevent backflow. The system operates passively and continuously while the boat is underway, maintaining a drier bilge environment without the need for electrical bilge pumps.

PASSIVE SIPHON-BASED FLUID REMOVAL APPARATUS
20260043421 · 2026-02-12 ·

An apparatus and method for removing fluid from the bilge of a boat without electrical power or manual intervention is disclosed. The system includes a bilge accumulator positioned within the bilge to collect fluid, a siphon generator mounted on the exterior of the boat at or below the waterline, and a tube connecting the two. The siphon generator incorporates a Venturi passage that generates a vacuum as water flows across its surface during vessel motion, thereby drawing fluid from the bilge accumulator and expelling it overboard. The accumulator may include a sponge or multi-stage filter for debris removal and priming retention, and mounting components for secure installation. A check valve may be included to prevent backflow. The system operates passively and continuously while the boat is underway, maintaining a drier bilge environment without the need for electrical bilge pumps.