Patent ID: 11872506
Assignee: PARAGON WATER SYSTEMS, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A gravity flow filter cartridge comprising:
a filter housing 28 having an open upper end 52 and an integrally formed, cone-shaped wall 42 with a first generally semi-circular portion 44 and a flat portion 46 where the generally semi-circular portion and the flat portion angle downwardly to form a closed end 48, the cone-shaped wall 42 defining a hollow interior space 54 for containing filter media 56, at least one hole 50 at the closed end 48 of the filter housing 28 that allows filtered water to exit the hollow interior space; and
a removable cover 40 having a generally semi-circular shape and a straight portion, the removable cover being capable of sealingly engaging the open upper end 52 of the filter housing, the removable cover having a central portion 92 including a semi-circular dome 94 and a hollow handle 96 extending from the dome orthogonally, relative to a plane of the removable cover and defining a through-hole 110 that enables a user to insert a finger into the through-hole to manipulate the filter cartridge 32 during insertion or removal of the gravity flow filter cartridge to and from a container 22, the hollow handle 96 includes at least one vent hole 112 through a top end 108 of the handle 96 to enable air to exit the at least one vent hole to remove air that moves toward the removable cover 40 during filtration, a plurality of holes 98 are formed in a bottom edge 100 of the dome 94 to allow water to flow by gravity through the holes 98 and into the hollow interior space 54, the hollow handle placing the at least one vent hole 112 in fluid communication with the hollow interior space 54.