Gas filter element and method of manufacturing the same
First Claim
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1. A method of manufacturing a gas filter element, comprising the steps of:
- providing a substantially wedge-shaped filter pocket having side walls formed of filter material;
forming a hose section composed of mesh material into a substantially tetrahedral configuration to form a spacer element having a substantially constant perimeter throughout the lengthwise extent thereof; and
attaching outer side walls of said spacer element which are coplanar to and in confronting relationship to opposite surfaces of inner side walls of the filter pocket at opposed edges of the outer side walls of the spacer element;
whereby the side walls of the filter pocket are reinforced and prevented from bowing in and out.
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Abstract
A gas filter element and method of manufacturing the same, wherein the gas filter element is equipped with a substantially wedge-shaped filter pocket containing side walls composed of filter material and a number of areal spacer holders dispositioned in the pocket and extending transversely to the side walls approximately in the direction of flow of the gas. The spacer holders or spacers are connected along lengthwise edges thereof with the side walls. These spacer holders form oppositely situated sides of a tetrahedrally formed hose section composed of course mesh material.
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Citations
13 Claims
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1. A method of manufacturing a gas filter element, comprising the steps of:
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providing a substantially wedge-shaped filter pocket having side walls formed of filter material; forming a hose section composed of mesh material into a substantially tetrahedral configuration to form a spacer element having a substantially constant perimeter throughout the lengthwise extent thereof; and attaching outer side walls of said spacer element which are coplanar to and in confronting relationship to opposite surfaces of inner side walls of the filter pocket at opposed edges of the outer side walls of the spacer element; whereby the side walls of the filter pocket are reinforced and prevented from bowing in and out. - View Dependent Claims (2, 3, 4)
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5. A gas filter element for cleaning gases moving in a predetermined direction of gas flow, comprising:
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means defining a substantially wedge-shaped filter pocket having side walls composed of filter material; a number of flexible spacer holders; each of said spacer holders comprising a substantially tetrahedrally formed hose section composed of coarse mesh material; said spacer holders being arranged in said filter pocket transversely with respect to the side walls thereof and extending in the direction of flow of the gases to be cleaned; each of said spacer holders constituting a body having an essentially constant perimeter throughout the lengthwise extent thereof; each of said spacer holders having a first pair of opposite sides and a second pair of opposite sides; the outer sides of said first pair of opposite sides defining side faces of the spacer holder which extend substantially coplanar with and adjacent a confronting opposite surface of an inner side wall of said pocket; each of said side faces of said first pair of opposite sides of each spacer holder having lengthwise edges extending in the direction of flow of the gases to be cleaned; and said spacer holders being connected along at least each of said lengthwise edges of each of said side faces of said first pair of opposite sides with the confronting side wall of said pocket, to thereby reinforce said side walls of said filter pocket and to also at least minimize the tendency of outward deformation of said side walls of said filter pocket due to the pressure of the gases to be cleaned. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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Specification