Patent US5028911A successfully refreshed from Google Patents.
US5028911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustically responsive portable emergency light
Assignee: Black and Decker Inc
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Filing: 1990-02-23
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Granted: 1991-07-02
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Expires: 2010-02-23
Abstract
Abstract A portable light includes a light, a battery, and a switch having an "on" position and an "off" position. The switch in the "off" position prevents the light from being illuminated and the switch in the "on" position directly connects the light to the battery to cause the light to be illuminated. The switch includes a first interdigitating member. A bracket for mounting the portable light includes a second interdigitating member in interconnecting relationship with the first interdigitating member on the switch. The interconnecting relationship between the interdigitating member moves the switch to the "on" position when the light is removed from the bracket.
Inventors
- 👤 David J. Wanat
- 👤 Robert Osit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:51
CPC Classifications
G; G08; G08B; G08B5/00; G08B5/22; G08B5/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
163 words
A smoke-alarm-activated portable light comprising: sound receiving means for generating an electrical output signal in response to the specific audible alarm emitted from said smoke alarm; light means; battery means; means for receiving said electrical output signal for electrically connecting said batter means and said light means to cause said batter means to illuminate said light means in response to transmission of said electrical output signal; switch means having "on," and automatic/off positions, said switch means in the automatic/off position enabling said means for electrically connecting to cause said battery means to illuminate said light means in response to said electrical output signal, but otherwise preventing said light means from being illuminated, said switch means in the "on" position directly connecting said light means to said battery means to cause said light means to be illuminated; and a bracket for mounting said portable light, said bracket moving said switch means to the "on" position when said portable light is removed from said bracket.
Claim 2
Dependent Claim
163 words
A smoke-alarm-activated portable light comprising: sound receiving means for generating an electrical output signal in response to the specific audible alarm emitted from said smoke alarm; light means; battery means; means for receiving said electrical output signal for electrically connecting said batter means and said light means to cause said batter means to illuminate said light means in response to transmission of said electrical output signal; switch means having "on," and automatic/off positions, said switch means in the automatic/off position enabling said means for electrically connecting to cause said battery means to illuminate said light means in response to said electrical output signal, but otherwise preventing said light means from being illuminated, said switch means in the "on" position directly connecting said light means to said battery means to cause said light means to be illuminated; and a bracket for mounting said portable light, said bracket moving said switch means to the "on" position when said portable light is removed from said bracket.
Claim 3
Dependent Claim
51 words
A smoke-alarm-activated portable light in accordance with claim 1 wherein said bracket includes first interdigitating means, and said switch means includes second interdigitating means in interconnecting relationship with said first interdigitating means, said interconnecting relationship moving said switch means to said "on" position when the light is removed from said bracket.
Claim 4
Dependent Claim
101 words
A portable light comprising: light means; battery means; switch means having an "on" position and an "off" position, said switch means in the "off" position preventing said light from being illuminated, and said switch means in the "on" position directly connecting said light to said battery to cause said light to be illuminated, said switch means including first interdigitating means; and a bracket for mounting said portable light, said bracket including second interdigitating means in interconnecting relationship with said first interdigitating means, said interconnecting relationship moving said switch means to said "on" position when the light is removed from said bracket.
Claim 5
Dependent Claim
101 words
A portable light comprising: light means; battery means; switch means having an "on" position and an "off" position, said switch means in the "off" position preventing said light from being illuminated, and said switch means in the "on" position directly connecting said light to said battery to cause said light to be illuminated, said switch means including first interdigitating means; and a bracket for mounting said portable light, said bracket including second interdigitating means in interconnecting relationship with said first interdigitating means, said interconnecting relationship moving said switch means to said "on" position when the light is removed from said bracket.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-01 | 1994-12-31 | 1995-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-01 | 1998-12-31 | 1999-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-01 | 2002-12-31 | 2003-07-02 | $7700.00 | Window Closed / Lapsed |