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US 2009/0288909 A1Published application
Sintered elements and associated systems
AssigneeCooper Technologies Company
InventorMark Slack
Life of this patent
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Abstract
Sintered elements for use in hazardous areas comprise a first flame path having a first length and a first pore size, and a second flame path having a second length and a second pore size. The second length is greater than the first length and the second pore size is greater than the first pore size. Sounders and loud speakers for use in hazardous areas comprise a housing having a horn and a rear enclosure, a driver assembly, and a sintered element.
Claims29
A sinter, comprising:
- a first flame path having a first length and a first pore size;
- and
- a second flame path having a second length and a second pore size;
- wherein the second length is greater than the first length, and
- wherein the second pore size is greater than the first pore size.
2 more elements
A sound emitting device, comprising:
- a sinter comprising a first portion and a second portion, the second portion having a greater thickness than the first portion.
A speaker, comprising:
- a housing comprising a horn coupled to an enclosure;
- a driver assembly positioned within the housing;
- and
- a sinter positioned between the driver assembly and a path to an exterior of the loudspeaker, the sinter comprising a first flame path having a first length and a first pore size and a second flame path having a second length and a second pore size, wherein the second length is greater than the first length, and wherein the second pore size is greater than the first pore size.
1 more element
A sinter, comprising:
- a substantially solid shape comprising a plurality of tunnel-shaped paths disposed therein, the substantially solid shape comprising a thickness that progressively decreases as a function of a distance from a center of the sinter,
- wherein the tunnel-shaped paths progressively decrease in length as a function of a distance from the center of the sinter, and
- wherein longer ones of the tunnel-shaped paths have a larger cross-sectional area than shorter ones of the tunnel-shaped paths.
Dependencies are inferred from the claim text.