Patent US4631649A successfully refreshed from Google Patents.
US4631649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plug-in emergency light fixture
Assignee: Chloride Group Ltd
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Filing: 1985-10-16
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Granted: 1986-12-23
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Expires: 2005-10-16
Abstract
Abstract An emergency light fixture is permanently mountable in a conventional powerutlet box having, in fixed relation, a threaded bore for accommodating a screw for a face plate and slots for accommodating an electric plug. The emergency light fixture includes a housing, an electric plug extending from the rear wall of the housing, a battery, a battery charger, and a lamp mounted in the housing and wired to provide illumination during a power outage. The fixture also includes an aperture in the rear wall of the housing for accommodating a screw for permanently attaching the housing to the outlet box. The aperture is in fixed relationship with the electric plug so that the aperture is aligned with the threaded bore in the outlet box when the electric plug is aligned with the slots in the outlet box.
Inventors
- 👤 Robert J. McCue
- 👤 Ronald H. Minter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:47
CPC Classifications
F; F21; F21S; F21S9/00; F21S9/02; F21S9/022; F21S8/00; F21S8/03; F21S8/033; F21S8/035; F21V; F21V15/00; F21V15/005; F21V21/00; F21V21/02; F21V33/00; F21V33/006
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
191 words
An emergency light fixture permanently mountable in a conventional power outlet box having in fixed relation a threaded bore for accommodating a screw for a face plate and slots for accommodating an electric plug, the emergency light fixture comprising: a housing; an electric plug extending from the rear wall of the housing; a battery mounted in the housing; a lamp mounted in the housing and connected to the battery for illumination during a power outage; charging means connected to the electric plug and the battery for charging the battery; a tamperproof screw for permanently attaching the housing to the outlet box having a tamperproof engaging means for engagement with a complementary portion of a screwdriver for tamperproof screws and for preventing engagement with conventional slotted or phillips head screwdrivers; and aperture means in the rear wall of the housing for accommodating the screw for permanently attaching the housing to the outlet box, the aperture means being in fixed relationship with the electric plug so that the aperture means is aligned with the threaded bore in the outlet box when the electric plug is aligned with the slots in the outlet box.
Claim 2
Dependent Claim
191 words
An emergency light fixture permanently mountable in a conventional power outlet box having in fixed relation a threaded bore for accommodating a screw for a face plate and slots for accommodating an electric plug, the emergency light fixture comprising: a housing; an electric plug extending from the rear wall of the housing; a battery mounted in the housing; a lamp mounted in the housing and connected to the battery for illumination during a power outage; charging means connected to the electric plug and the battery for charging the battery; a tamperproof screw for permanently attaching the housing to the outlet box having a tamperproof engaging means for engagement with a complementary portion of a screwdriver for tamperproof screws and for preventing engagement with conventional slotted or phillips head screwdrivers; and aperture means in the rear wall of the housing for accommodating the screw for permanently attaching the housing to the outlet box, the aperture means being in fixed relationship with the electric plug so that the aperture means is aligned with the threaded bore in the outlet box when the electric plug is aligned with the slots in the outlet box.
Claim 3
Dependent Claim
37 words
The emergency light fixture of claim 1 wherein the housing includes a removable panel means for allowing, when removed, and preventing, when in place, access to the screw for permanently attaching the housing to the outlet box.
Claim 4
Dependent Claim
55 words
The emergency light fixture of claim 2 wherein the removable panel means is secured to the remainder of the housing by at least one other tamperproof screw having a tamperproof engaging means for engagement with a complementary portion of a screwdriver for tamperproof screws and for preventing engagement with conventional slotted or phillips head screwdrivers.
Claim 5
Dependent Claim
22 words
The emergency light fixture of claim 1 include an auxiliary power outlet mounted in the housing and connected to the electric plug.
References Cited (Backward Citations)
US3125300A
Cited
US3233091A
Cited
US3739226A
Cited
US4255746A
Cited
US4345304A
Cited
US4461974A
Cited
US4535391A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-22 | 1990-06-23 | 1990-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-22 | 1994-06-23 | 1994-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-22 | 1998-06-23 | 1998-12-23 | $7700.00 | Window Closed / Lapsed |