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US 11,145,176 B1Granted
Photoelectric smoke detectors
AssigneeCarrier Corporation
InventorsDennis Gadonniex, Vipul Patel
Life of this patent
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Abstract
A photoelectric smoke detector includes an optics cover that provides a smoke chamber that has a smoke chamber opening, a blocking component is mounted to the optics cover. An inner cover provides a first opening and a second opening. The first opening receives a portion of the blocking component and the second opening is aligned with the smoke chamber opening. A spoiler is received against the inner cover. The spoiler includes at least one of: a U-shaped fin arrangement and a Y-shaped fin arrangement.
Claims21
A photoelectric smoke detector, comprising:
- an optics cover providing a smoke chamber having a smoke chamber opening;
- a blocking component mounted to the optics cover;
- an inner cover providing a first opening and a second opening, wherein the first opening receives a portion of the blocking component and the second opening is aligned with the smoke chamber opening;
- a spoiler received against the inner cover, the spoiler including at least one of:
- a U-shaped fin arrangement and a Y-shaped fin arrangement.
2 more elements
A photoelectric smoke detector, comprising:
- a base portion;
- a circuit received on the base portion;
- an optics cover mounted to the base portion and providing a smoke chamber having a smoke chamber opening;
- a blocking component mounted to the optics cover;
- an inner cover providing a first opening and a second opening, wherein the first opening receives a portion of the blocking component and the second opening is aligned with the smoke chamber opening;
- a spoiler including a ring portion, a conical portion extending from the ring portion toward the smoke chamber, and at least one of:
- a U-shaped fin arrangement and a Y-shaped fin arrangement extending from the conical portion, the spoiler being received against the inner cover;
- and
- an outer cover attached to a base portion, wherein the outer cover includes an open entry portion, wherein a gap is provided between the blocking component and the outer cover, and the inner cover seals the gap from the entry portion to prevent smoke particles from entering the gap.
6 more elements
Dependencies are inferred from the claim text.