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Patent
D284272
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Priority
Aug 09 1984
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Filed
Aug 09 1984
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Issued
Jun 17 1986
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Expiry
Jun 17 2000
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Assg.orig
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Entity
unknown
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10
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4
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n/a
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The ornamental design for an ionization chamber for a smoke detector, as shown and described.
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FIG. 1 is a top perspective view of an ionization chamber for a smoke
detector showing my new design;
FIG. 2 is an enlarged top plan view thereof;
FIG. 3 is an enlarged side elevational view taken in the direction of the
arrows along line 3--3 of FIG. 2;
FIG. 4 is an enlarged bottom plan view thereof;
FIG. 5 is a bottom perspective view thereof.
Chen, Laurence
Patent |
Priority |
Assignee |
Title |
10809173, |
Dec 15 2017 |
Analog Devices, Inc. |
Smoke detector chamber boundary surfaces |
10921367, |
Mar 06 2019 |
Analog Devices, Inc |
Stable measurement of sensors methods and systems |
11788942, |
Dec 15 2017 |
Analog Devices, Inc |
Compact optical smoke detector system and apparatus |
11796445, |
May 15 2019 |
Analog Devices, Inc |
Optical improvements to compact smoke detectors, systems and apparatus |
6778091, |
Jan 09 2001 |
SimplexGrinnell LP |
Smoke chamber |
D907515, |
Nov 06 2018 |
Analog Devices, Inc |
Smoke detector chamber |
D918756, |
Nov 06 2018 |
Analog Devices, Inc |
Smoke detector boundary |
D920825, |
Nov 06 2018 |
Analog Devices, Inc |
Smoke detector chamber |
D965459, |
Jan 14 2020 |
AXIS AB |
Siren |
D975567, |
Jun 30 2021 |
|
Smoke detector |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
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Maintenance Fee Events |
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