Adjustable resistance, gravitationally activated, anti-syphon valve

Patent metadata

Field	Value
Publication number	US-9050436-B2
Application number	US-201313803905-A
Country	US
Kind code	B2
Filing date	Mar 14, 2013
Priority date	Mar 14, 2013
Publication date	Jun 9, 2015
Grant date	Jun 9, 2015

Abstract

An anti-siphon drainage device having a housing forming an internal chamber, an inlet and outlet ports part of the internal chamber and fluidly connected by a primary flow path. A valve seat is associated with the primary flow path, a sloped section extends from the valve seat, and a valve element disposed in the sloped section and can seat in the valve seat to restrict a fluid flow into the primary flow path from the inlet port. A secondary flow path can have an opening near the inlet port and an orifice near the outlet port. A regulator has an aperture to selectively open and close the opening of the secondary flow path. When the valve element is seated in the valve seat and restricting the fluid flow into the primary flow path, the fluid flows into the secondary flow path.

First claim

We claim:

1. An anti-siphon drainage device, comprising:
a housing forming an internal chamber;
an inlet port and an outlet port communicating with the internal chamber and fluidly connected by a primary flow path;
a valve seat associated with the primary flow path;
a sloped section extending from the valve seat inside the internal chamber;
a valve element disposed in the sloped section and capable of seating in the valve seat to restrict a fluid flow into the primary flow…

Assignees

• Depuy Synthes Products Llc

Inventors

• Wilson Stephen
• Trigger Alyssa

Classifications

• Y10T29/494

  Cross-Sectional Technologies · mapped topic

• A61M2207/00

  Human Necessities · mapped topic

• A61M39/22

  Human Necessities · mapped topic

• A61M25/0009

  Human Necessities · mapped topic

• A61M27/006 Primary

  Human Necessities · mapped topic