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US 11,692,644 B2Granted
Vent with relief valve
AssigneeDonaldson Company, Inc.
InventorsJacob Sanders, Michael J. Hebert, Daniel Dotzler, Koen Gatz
Life of this patent
Estimating the term…
Abstract
A vent assembly has a housing defining a cavity, a first end, a second end, and a coupling structure towards the second end. A mounting surface is positioned between the first end and the second end within the cavity and defines a valve opening and a vent opening. A vent is coupled to the mounting surface across the vent opening, and an umbrella valve is sealably disposed on the mounting surface across a valve opening.
Claims18
A vent assembly comprising:
- a housing defining a cavity, a first end, a second end, a vent opening, a valve opening, and a coupling structure towards the second end;
- a passive airflow vent disposed in the housing across the vent opening, wherein the housing defines a housing opening between an ambient environment and the cavity to define a first fluid flow pathway between the ambient environment and the passive airflow vent;
- and a one-way relief valve disposed in the housing and forming a seal over the valve opening, wherein the one-way relief valve is arranged in parallel with the passive airflow vent with respect to airflow through the housing, and the one-way relief valve is arranged upstream of the housing opening with respect to airflow through the one-way relief valve, wherein the passive airflow vent and the one-way relief valve share a central axis, and wherein the valve opening comprises a plurality of openings defining a segmented annulus about the central axis, wherein the coupling structure defines a second fluid flow pathway between the outside of the housing and the passive airflow vent, and the one-way relief valve is configured to unseal when the pressure in the second fluid flow pathway is greater than the pressure in the first fluid flow pathway by a threshold.
Dependencies are inferred from the claim text.