Wound Wire Filter Elements
AssigneeACS Industries, Inc.
InventorGeorge Greenwood
Life of this patent
Estimating the term…
Abstract
A cylindrical wound wire filter with an inner bore, suitable for use with an airbag inflator, has at least two different outer diameters and/or at least two different inner diameters. Wires in adjacent layers can be bonded together by adhesive or brazing, or have a sheet-like material therebetween, such as a ceramic filter paper.
Claims18
A wound wire filter made from a continuous single wire and having a first inner diameter and a first outer diameter, and at least one of a second inner diameter and a second outer diameter different from the respective first diameter.
A wound wire filter wherein wires on adjacent layers are bonded to each other.
A wound wire filter, wherein at least a portion of the winding comprises a strip of sheet-like material present adjacent the wire throughout at least a portion of the wound wire.
A method for making a filter, comprising:
- winding a wire around a mandrel to produce an annular device having an innermost and an outermost diameter, and altering the helix angle α, the dwell, and the position of the wire to be wound effective to produce a filter having at least two inner diameters or at least two outer diameters.
A wound wire filter, comprising:
- a hollow cylindrical core having a multiplicity of openings;
- and a continuous single wire wound about the core along the length of the core.
Dependencies are inferred from the claim text.