Air filter and gasket for the same
Disclosed herein are replaceable filter frame gaskets and air filters having the same. The gasket is secured elastically to a filter frame of the air filter, making the gasket easily reusable and removable from the air filter.
1. A replaceable air filter frame gasket, comprising:
a rectangular ring shaped body having a top surface, a bottom surface, an inner perimeter, an outer perimeter and corners;
a flange extending outward to the outer perimeter of the body along the entire outer perimeter, wherein the flange has cutaways at a corner of the gasket;
a protrusion extending upward from the top surface;
a mating portion extending from the bottom surface of the body extending continuously along the entire outer perimeter.
2. The replaceable air filter frame gasket of claim 1 , wherein the protrusion is continuous around an entire length of the top surface of the body.
3. The replaceable air filter frame gasket of claim 1 , wherein the mating portion has cross members.
4. The replaceable air filter frame gasket of claim 1 , further comprising:
a rib extending from the flange in a direction of the mating portion; and
a key extending from the second surface, the key disposed in the corner of the gasket.
5. The replaceable air filter frame gasket of claim 4 , wherein the rib and the key have a different cross-section profile.
6. The replaceable air filter frame gasket of claim 4 , wherein the rib and the key have a hollow.
7. The replaceable air filter frame gasket of claim 6 , wherein the hollow is not vented.
8. An air filter comprising:
a rectangular filter frame having corners;
filter media disposed in the filter frame; and
the replaceable air filter frame gasket of claim 1 elastically secured to and extend outward of an outer perimeter of the filter frame.
9. The filter frame of claim 8 , wherein the rectangular filter frame further comprises:
a body wherein a downstream surface of the body has a channel and a recess.
10. The filter frame of claim 9 , wherein the gasket further comprises:
an elastic body having four corners, the elastic body comprising:
a key configured to fit in the recess, wherein a horizontal profile of the key is shaped differently than that of the mating portion and the key does not fit in the channel.
11. The filter frame of claim 10 , wherein the gasket has an enclosed hollow interior.
12. The filter frame of claim 10 , wherein the gasket further comprises:
a rib extending from the flange in a direction of the mating portion; and
at least one rib corner in the corner of the gasket that extends along two walls of the outer perimeter.
13. The filter frame of claim 10 , wherein the flange further comprises:
a plurality of cutaways along the outer perimeter at a corner of the flange.
14. The filter frame of claim 13 , wherein the plurality of cutaways are immediately adjacent the corners.
15. A replaceable air filter frame gasket, comprising:
a rectangular ring shaped body having a top surface, a bottom surface, an inner perimeter, an outer perimeter and corners;
a flange extending outward to the outer perimeter of the body along the entire outer perimeter;
a protrusion extending upward from the top surface;
a mating portion extending from the bottom surface of the body extending continuously along the entire outer perimeter; and
a rib extending from the flange in a direction of the mating portion.
16. A air filter frame gasket, comprising:
a rectangular ring shaped body having an inner perimeter, an outer perimeter and corners;
a first flange extending outward to an outer perimeter of the body along an entire length of the body, where in the first flange has a pair of cutaways at the corners; and
a protrusion extending upward from the top surface at an angle towards the inner perimeter.
17. The air filter frame gasket of claim 16 , wherein the first flange is disposed approximate a centerline of a base portion of the rectangular ring shaped body.
18. The air filter frame gasket of claim 17 , further comprising:
a second flange extending outward from an outer perimeter of the body extending continuously along an entire length of the body, wherein the first flange is disposed approximate a first distal end of the base portion of the rectangular ring shaped body and the second flange is disposed approximate a second distal end of the base portion of the rectangular ring shaped body.
19. The air filter frame gasket of claim 16 , wherein the angle of the protrusion is between about 30 degrees and about 90 degrees from the top surface.